Seattle (SEA) to Barcelona (BCN), December 2026: flights from $620 one way

Lowest published fares in December 2026: $900 round trip, Axel-exclusive, American Airlines / Lufthansa, 1 stop, Dec 1–4, 2026; $620 one way, Axel-exclusive, American Airlines, 1 stop, Dec 1, 2026; 188 priced flights on 94 exact dates, 1 adult, economy, checked Oct 29, 2026.

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Flights in December 2026

Lowest published fares in December 2026: $900 round trip, Axel-exclusive, American Airlines / Lufthansa, 1 stop, Dec 1–4, 2026; $620 one way, Axel-exclusive, American Airlines, 1 stop, Dec 1, 2026; 188 priced flights on 94 exact dates, 1 adult, economy, checked Oct 29, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

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Seattle (SEA) to Barcelona (BCN): December 2026

Travel datesAirlineStopsTotal price
Dec 1, 2026 · One way · Compare return dates departing Dec 1, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $620.00
Dec 1, 2026 · One way · Compare return dates departing Dec 1, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $640.00
Dec 1, 2026 – Dec 4, 2026 · 3 nights · Compare return dates departing Dec 1, 2026American Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $900.00
Dec 1, 2026 – Dec 4, 2026 · 3 nights · Compare return dates departing Dec 1, 2026Alaska Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $915.00
Dec 1, 2026 – Dec 8, 2026 · 7 nights · Compare return dates departing Dec 1, 2026American Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $910.00
Dec 1, 2026 – Dec 8, 2026 · 7 nights · Compare return dates departing Dec 1, 2026Alaska Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $925.00
Dec 2, 2026 · One way · Compare return dates departing Dec 2, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $620.00
Dec 2, 2026 · One way · Compare return dates departing Dec 2, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $640.00
Dec 2, 2026 – Dec 5, 2026 · 3 nights · Compare return dates departing Dec 2, 2026American Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $910.00
Dec 2, 2026 – Dec 5, 2026 · 3 nights · Compare return dates departing Dec 2, 2026Alaska Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $925.00
Dec 2, 2026 – Dec 9, 2026 · 7 nights · Compare return dates departing Dec 2, 2026American Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $910.00
Dec 2, 2026 – Dec 9, 2026 · 7 nights · Compare return dates departing Dec 2, 2026Alaska Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $925.00
Dec 3, 2026 · One way · Compare return dates departing Dec 3, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $620.00
Dec 3, 2026 · One way · Compare return dates departing Dec 3, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $640.00
Dec 3, 2026 – Dec 6, 2026 · 3 nights · Compare return dates departing Dec 3, 2026American Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $910.00
Dec 3, 2026 – Dec 6, 2026 · 3 nights · Compare return dates departing Dec 3, 2026Alaska Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $925.00
Dec 3, 2026 – Dec 10, 2026 · 7 nights · Compare return dates departing Dec 3, 2026American Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $905.00
Dec 3, 2026 – Dec 10, 2026 · 7 nights · Compare return dates departing Dec 3, 2026Alaska Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $920.00
Dec 4, 2026 · One way · Compare return dates departing Dec 4, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $620.00
Dec 4, 2026 · One way · Compare return dates departing Dec 4, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $640.00
Dec 4, 2026 – Dec 7, 2026 · 3 nights · Compare return dates departing Dec 4, 2026American Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $900.00
Dec 4, 2026 – Dec 7, 2026 · 3 nights · Compare return dates departing Dec 4, 2026Alaska Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $915.00
Dec 4, 2026 – Dec 11, 2026 · 7 nights · Compare return dates departing Dec 4, 2026American Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $900.00
Dec 4, 2026 – Dec 11, 2026 · 7 nights · Compare return dates departing Dec 4, 2026Alaska Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $915.00
Dec 5, 2026 · One way · Compare return dates departing Dec 5, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $620.00
Dec 5, 2026 · One way · Compare return dates departing Dec 5, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $640.00
Dec 5, 2026 – Dec 8, 2026 · 3 nights · Compare return dates departing Dec 5, 2026American Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $910.00
Dec 5, 2026 – Dec 8, 2026 · 3 nights · Compare return dates departing Dec 5, 2026Alaska Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $925.00
Dec 5, 2026 – Dec 12, 2026 · 7 nights · Compare return dates departing Dec 5, 2026American Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $910.00
Dec 5, 2026 – Dec 12, 2026 · 7 nights · Compare return dates departing Dec 5, 2026Alaska Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $925.00
Dec 6, 2026 · One way · Compare return dates departing Dec 6, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $620.00
Dec 6, 2026 · One way · Compare return dates departing Dec 6, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $640.00
Dec 6, 2026 – Dec 9, 2026 · 3 nights · Compare return dates departing Dec 6, 2026American Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $910.00
Dec 6, 2026 – Dec 9, 2026 · 3 nights · Compare return dates departing Dec 6, 2026Alaska Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $925.00
Dec 6, 2026 – Dec 13, 2026 · 7 nights · Compare return dates departing Dec 6, 2026American Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $910.00
Dec 6, 2026 – Dec 13, 2026 · 7 nights · Compare return dates departing Dec 6, 2026Alaska Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $925.00
Dec 7, 2026 · One way · Compare return dates departing Dec 7, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $620.00
Dec 7, 2026 · One way · Compare return dates departing Dec 7, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $640.00
Dec 7, 2026 – Dec 10, 2026 · 3 nights · Compare return dates departing Dec 7, 2026American Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $905.00
Dec 7, 2026 – Dec 10, 2026 · 3 nights · Compare return dates departing Dec 7, 2026Alaska Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $920.00
Dec 7, 2026 – Dec 14, 2026 · 7 nights · Compare return dates departing Dec 7, 2026American Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $900.00
Dec 7, 2026 – Dec 14, 2026 · 7 nights · Compare return dates departing Dec 7, 2026Alaska Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $915.00
Dec 8, 2026 · One way · Compare return dates departing Dec 8, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $620.00
Dec 8, 2026 · One way · Compare return dates departing Dec 8, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $640.00
Dec 8, 2026 – Dec 11, 2026 · 3 nights · Compare return dates departing Dec 8, 2026American Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $900.00
Dec 8, 2026 – Dec 11, 2026 · 3 nights · Compare return dates departing Dec 8, 2026Alaska Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $915.00
Dec 8, 2026 – Dec 15, 2026 · 7 nights · Compare return dates departing Dec 8, 2026American Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $910.00
Dec 8, 2026 – Dec 15, 2026 · 7 nights · Compare return dates departing Dec 8, 2026Alaska Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $925.00
Dec 9, 2026 · One way · Compare return dates departing Dec 9, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $620.00
Dec 9, 2026 · One way · Compare return dates departing Dec 9, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $640.00
Dec 9, 2026 – Dec 12, 2026 · 3 nights · Compare return dates departing Dec 9, 2026American Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $910.00
Dec 9, 2026 – Dec 12, 2026 · 3 nights · Compare return dates departing Dec 9, 2026Alaska Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $925.00
Dec 9, 2026 – Dec 16, 2026 · 7 nights · Compare return dates departing Dec 9, 2026American Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $910.00
Dec 9, 2026 – Dec 16, 2026 · 7 nights · Compare return dates departing Dec 9, 2026Alaska Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $925.00
Dec 10, 2026 · One way · Compare return dates departing Dec 10, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $620.00
Dec 10, 2026 · One way · Compare return dates departing Dec 10, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $640.00
Dec 10, 2026 – Dec 13, 2026 · 3 nights · Compare return dates departing Dec 10, 2026American Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $910.00
Dec 10, 2026 – Dec 13, 2026 · 3 nights · Compare return dates departing Dec 10, 2026Alaska Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $925.00
Dec 10, 2026 – Dec 17, 2026 · 7 nights · Compare return dates departing Dec 10, 2026American Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $905.00
Dec 10, 2026 – Dec 17, 2026 · 7 nights · Compare return dates departing Dec 10, 2026Alaska Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $920.00
Dec 11, 2026 · One way · Compare return dates departing Dec 11, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $620.00
Dec 11, 2026 · One way · Compare return dates departing Dec 11, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $640.00
Dec 11, 2026 – Dec 14, 2026 · 3 nights · Compare return dates departing Dec 11, 2026American Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $900.00
Dec 11, 2026 – Dec 14, 2026 · 3 nights · Compare return dates departing Dec 11, 2026Alaska Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $915.00
Dec 11, 2026 – Dec 18, 2026 · 7 nights · Compare return dates departing Dec 11, 2026American Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1038.00
Dec 11, 2026 – Dec 18, 2026 · 7 nights · Compare return dates departing Dec 11, 2026Alaska Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1053.00
Dec 12, 2026 · One way · Compare return dates departing Dec 12, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $620.00
Dec 12, 2026 · One way · Compare return dates departing Dec 12, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $640.00
Dec 12, 2026 – Dec 15, 2026 · 3 nights · Compare return dates departing Dec 12, 2026American Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $910.00
Dec 12, 2026 – Dec 15, 2026 · 3 nights · Compare return dates departing Dec 12, 2026Alaska Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $925.00
Dec 12, 2026 – Dec 19, 2026 · 7 nights · Compare return dates departing Dec 12, 2026American Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $1051.00
Dec 12, 2026 – Dec 19, 2026 · 7 nights · Compare return dates departing Dec 12, 2026Alaska Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $1066.00
Dec 13, 2026 · One way · Compare return dates departing Dec 13, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $620.00
Dec 13, 2026 · One way · Compare return dates departing Dec 13, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $640.00
Dec 13, 2026 – Dec 16, 2026 · 3 nights · Compare return dates departing Dec 13, 2026American Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $910.00
Dec 13, 2026 – Dec 16, 2026 · 3 nights · Compare return dates departing Dec 13, 2026Alaska Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $925.00
Dec 13, 2026 – Dec 20, 2026 · 7 nights · Compare return dates departing Dec 13, 2026American Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $1051.00
Dec 13, 2026 – Dec 20, 2026 · 7 nights · Compare return dates departing Dec 13, 2026Alaska Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $1066.00
Dec 14, 2026 · One way · Compare return dates departing Dec 14, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $620.00
Dec 14, 2026 · One way · Compare return dates departing Dec 14, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $640.00
Dec 14, 2026 – Dec 17, 2026 · 3 nights · Compare return dates departing Dec 14, 2026American Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $905.00
Dec 14, 2026 – Dec 17, 2026 · 3 nights · Compare return dates departing Dec 14, 2026Alaska Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $920.00
Dec 14, 2026 – Dec 21, 2026 · 7 nights · Compare return dates departing Dec 14, 2026American Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1038.00
Dec 14, 2026 – Dec 21, 2026 · 7 nights · Compare return dates departing Dec 14, 2026Alaska Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1053.00
Dec 15, 2026 · One way · Compare return dates departing Dec 15, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $620.00
Dec 15, 2026 · One way · Compare return dates departing Dec 15, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $640.00
Dec 15, 2026 – Dec 18, 2026 · 3 nights · Compare return dates departing Dec 15, 2026American Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1038.00
Dec 15, 2026 – Dec 18, 2026 · 3 nights · Compare return dates departing Dec 15, 2026Alaska Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1053.00
Dec 15, 2026 – Dec 22, 2026 · 7 nights · Compare return dates departing Dec 15, 2026American Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $1051.00
Dec 15, 2026 – Dec 22, 2026 · 7 nights · Compare return dates departing Dec 15, 2026Alaska Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $1066.00
Dec 16, 2026 · One way · Compare return dates departing Dec 16, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $620.00
Dec 16, 2026 · One way · Compare return dates departing Dec 16, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $640.00
Dec 16, 2026 – Dec 19, 2026 · 3 nights · Compare return dates departing Dec 16, 2026American Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $1051.00
Dec 16, 2026 – Dec 19, 2026 · 3 nights · Compare return dates departing Dec 16, 2026Alaska Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $1066.00
Dec 16, 2026 – Dec 23, 2026 · 7 nights · Compare return dates departing Dec 16, 2026American Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1044.50
Dec 16, 2026 – Dec 23, 2026 · 7 nights · Compare return dates departing Dec 16, 2026Alaska Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1059.50
Dec 17, 2026 · One way · Compare return dates departing Dec 17, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $620.00
Dec 17, 2026 · One way · Compare return dates departing Dec 17, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $640.00
Dec 17, 2026 – Dec 20, 2026 · 3 nights · Compare return dates departing Dec 17, 2026American Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $1051.00
Dec 17, 2026 – Dec 20, 2026 · 3 nights · Compare return dates departing Dec 17, 2026Alaska Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $1066.00
Dec 17, 2026 – Dec 24, 2026 · 7 nights · Compare return dates departing Dec 17, 2026American Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1044.50
Dec 17, 2026 – Dec 24, 2026 · 7 nights · Compare return dates departing Dec 17, 2026Alaska Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1059.50
Dec 18, 2026 · One way · Compare return dates departing Dec 18, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $806.00
Dec 18, 2026 · One way · Compare return dates departing Dec 18, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $832.00
Dec 18, 2026 – Dec 21, 2026 · 3 nights · Compare return dates departing Dec 18, 2026American Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1170.00
Dec 18, 2026 – Dec 21, 2026 · 3 nights · Compare return dates departing Dec 18, 2026Alaska Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1189.50
Dec 18, 2026 – Dec 25, 2026 · 7 nights · Compare return dates departing Dec 18, 2026American Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1170.00
Dec 18, 2026 – Dec 25, 2026 · 7 nights · Compare return dates departing Dec 18, 2026Alaska Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1189.50
Dec 19, 2026 · One way · Compare return dates departing Dec 19, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $806.00
Dec 19, 2026 · One way · Compare return dates departing Dec 19, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $832.00
Dec 19, 2026 – Dec 22, 2026 · 3 nights · Compare return dates departing Dec 19, 2026American Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $1183.00
Dec 19, 2026 – Dec 22, 2026 · 3 nights · Compare return dates departing Dec 19, 2026Alaska Airlines / Air FranceUp to 1 stop each wayAxel-exclusive $1202.50
Dec 19, 2026 – Dec 26, 2026 · 7 nights · Compare return dates departing Dec 19, 2026American Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1176.50
Dec 19, 2026 – Dec 26, 2026 · 7 nights · Compare return dates departing Dec 19, 2026Alaska Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1196.00
Dec 20, 2026 · One way · Compare return dates departing Dec 20, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $806.00
Dec 20, 2026 · One way · Compare return dates departing Dec 20, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $832.00
Dec 20, 2026 – Dec 23, 2026 · 3 nights · Compare return dates departing Dec 20, 2026American Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1176.50
Dec 20, 2026 – Dec 23, 2026 · 3 nights · Compare return dates departing Dec 20, 2026Alaska Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1196.00
Dec 20, 2026 – Dec 27, 2026 · 7 nights · Compare return dates departing Dec 20, 2026American Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1176.50
Dec 20, 2026 – Dec 27, 2026 · 7 nights · Compare return dates departing Dec 20, 2026Alaska Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1196.00
Dec 21, 2026 · One way · Compare return dates departing Dec 21, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $806.00
Dec 21, 2026 · One way · Compare return dates departing Dec 21, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $832.00
Dec 21, 2026 – Dec 24, 2026 · 3 nights · Compare return dates departing Dec 21, 2026American Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1176.50
Dec 21, 2026 – Dec 24, 2026 · 3 nights · Compare return dates departing Dec 21, 2026Alaska Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1196.00
Dec 21, 2026 – Dec 28, 2026 · 7 nights · Compare return dates departing Dec 21, 2026American Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1170.00
Dec 21, 2026 – Dec 28, 2026 · 7 nights · Compare return dates departing Dec 21, 2026Alaska Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1189.50
Dec 22, 2026 · One way · Compare return dates departing Dec 22, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $806.00
Dec 22, 2026 · One way · Compare return dates departing Dec 22, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $832.00
Dec 22, 2026 – Dec 25, 2026 · 3 nights · Compare return dates departing Dec 22, 2026American Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1170.00
Dec 22, 2026 – Dec 25, 2026 · 3 nights · Compare return dates departing Dec 22, 2026Alaska Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1189.50
Dec 22, 2026 – Dec 27, 2026 · 5 nights · Compare return dates departing Dec 22, 2026American Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1176.50
Dec 22, 2026 – Dec 27, 2026 · 5 nights · Compare return dates departing Dec 22, 2026Alaska Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1196.00
Dec 22, 2026 – Dec 29, 2026 · 7 nights · Compare return dates departing Dec 22, 2026American Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1176.50
Dec 22, 2026 – Dec 29, 2026 · 7 nights · Compare return dates departing Dec 22, 2026Alaska Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1196.00
Dec 23, 2026 · One way · Compare return dates departing Dec 23, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $806.00
Dec 23, 2026 · One way · Compare return dates departing Dec 23, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $832.00
Dec 23, 2026 – Dec 26, 2026 · 3 nights · Compare return dates departing Dec 23, 2026American Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1176.50
Dec 23, 2026 – Dec 26, 2026 · 3 nights · Compare return dates departing Dec 23, 2026Alaska Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1196.00
Dec 23, 2026 – Dec 30, 2026 · 7 nights · Compare return dates departing Dec 23, 2026American Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1176.50
Dec 23, 2026 – Dec 30, 2026 · 7 nights · Compare return dates departing Dec 23, 2026Alaska Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1196.00
Dec 24, 2026 · One way · Compare return dates departing Dec 24, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $806.00
Dec 24, 2026 · One way · Compare return dates departing Dec 24, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $832.00
Dec 24, 2026 – Dec 27, 2026 · 3 nights · Compare return dates departing Dec 24, 2026American Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1176.50
Dec 24, 2026 – Dec 27, 2026 · 3 nights · Compare return dates departing Dec 24, 2026Alaska Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1196.00
Dec 24, 2026 – Dec 31, 2026 · 7 nights · Compare return dates departing Dec 24, 2026American Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1176.50
Dec 24, 2026 – Dec 31, 2026 · 7 nights · Compare return dates departing Dec 24, 2026Alaska Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1196.00
Dec 25, 2026 · One way · Compare return dates departing Dec 25, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $806.00
Dec 25, 2026 · One way · Compare return dates departing Dec 25, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $832.00
Dec 25, 2026 – Dec 28, 2026 · 3 nights · Compare return dates departing Dec 25, 2026American Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1170.00
Dec 25, 2026 – Dec 28, 2026 · 3 nights · Compare return dates departing Dec 25, 2026Alaska Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1189.50
Dec 25, 2026 – Jan 1, 2027 · 7 nights · Compare return dates departing Dec 25, 2026American Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1137.80
Dec 25, 2026 – Jan 1, 2027 · 7 nights · Compare return dates departing Dec 25, 2026Alaska Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1157.30
Dec 26, 2026 · One way · Compare return dates departing Dec 26, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $806.00
Dec 26, 2026 · One way · Compare return dates departing Dec 26, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $832.00
Dec 26, 2026 – Dec 29, 2026 · 3 nights · Compare return dates departing Dec 26, 2026American Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1176.50
Dec 26, 2026 – Dec 29, 2026 · 3 nights · Compare return dates departing Dec 26, 2026Alaska Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1196.00
Dec 26, 2026 – Jan 2, 2027 · 7 nights · Compare return dates departing Dec 26, 2026American Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1143.95
Dec 26, 2026 – Jan 2, 2027 · 7 nights · Compare return dates departing Dec 26, 2026Alaska Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1163.45
Dec 27, 2026 · One way · Compare return dates departing Dec 27, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $806.00
Dec 27, 2026 · One way · Compare return dates departing Dec 27, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $832.00
Dec 27, 2026 – Dec 30, 2026 · 3 nights · Compare return dates departing Dec 27, 2026American Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1176.50
Dec 27, 2026 – Dec 30, 2026 · 3 nights · Compare return dates departing Dec 27, 2026Alaska Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1196.00
Dec 27, 2026 – Jan 3, 2027 · 7 nights · Compare return dates departing Dec 27, 2026American Airlines / Air CanadaUp to 1 stop each wayAxel-exclusive $1076.30
Dec 27, 2026 – Jan 3, 2027 · 7 nights · Compare return dates departing Dec 27, 2026Alaska Airlines / Air CanadaUp to 1 stop each wayAxel-exclusive $1095.80
Dec 28, 2026 · One way · Compare return dates departing Dec 28, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $806.00
Dec 28, 2026 · One way · Compare return dates departing Dec 28, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $832.00
Dec 28, 2026 – Dec 31, 2026 · 3 nights · Compare return dates departing Dec 28, 2026American Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1176.50
Dec 28, 2026 – Dec 31, 2026 · 3 nights · Compare return dates departing Dec 28, 2026Alaska Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1196.00
Dec 28, 2026 – Jan 4, 2027 · 7 nights · Compare return dates departing Dec 28, 2026American Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1137.80
Dec 28, 2026 – Jan 4, 2027 · 7 nights · Compare return dates departing Dec 28, 2026Alaska Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1157.30
Dec 29, 2026 · One way · Compare return dates departing Dec 29, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $806.00
Dec 29, 2026 · One way · Compare return dates departing Dec 29, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $832.00
Dec 29, 2026 – Jan 1, 2027 · 3 nights · Compare return dates departing Dec 29, 2026American Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1137.80
Dec 29, 2026 – Jan 1, 2027 · 3 nights · Compare return dates departing Dec 29, 2026Alaska Airlines / LufthansaUp to 1 stop each wayAxel-exclusive $1157.30
Dec 29, 2026 – Jan 5, 2027 · 7 nights · Compare return dates departing Dec 29, 2026American Airlines / Air CanadaUp to 1 stop each wayAxel-exclusive $1076.30
Dec 29, 2026 – Jan 5, 2027 · 7 nights · Compare return dates departing Dec 29, 2026Alaska Airlines / Air CanadaUp to 1 stop each wayAxel-exclusive $1095.80
Dec 30, 2026 · One way · Compare return dates departing Dec 30, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $806.00
Dec 30, 2026 · One way · Compare return dates departing Dec 30, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $832.00
Dec 30, 2026 – Jan 2, 2027 · 3 nights · Compare return dates departing Dec 30, 2026American Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1143.95
Dec 30, 2026 – Jan 2, 2027 · 3 nights · Compare return dates departing Dec 30, 2026Alaska Airlines / KLM Royal Dutch AirlinesUp to 1 stop each wayAxel-exclusive $1163.45
Dec 30, 2026 – Jan 6, 2027 · 7 nights · Compare return dates departing Dec 30, 2026American Airlines / Air CanadaUp to 1 stop each wayAxel-exclusive $1076.30
Dec 30, 2026 – Jan 6, 2027 · 7 nights · Compare return dates departing Dec 30, 2026Alaska Airlines / Air CanadaUp to 1 stop each wayAxel-exclusive $1095.80
Dec 31, 2026 · One way · Compare return dates departing Dec 31, 2026American AirlinesUp to 1 stop each wayAxel-exclusive $806.00
Dec 31, 2026 · One way · Compare return dates departing Dec 31, 2026Alaska AirlinesUp to 1 stop each wayAxel-exclusive $832.00
Dec 31, 2026 – Jan 3, 2027 · 3 nights · Compare return dates departing Dec 31, 2026American Airlines / Air CanadaUp to 1 stop each wayAxel-exclusive $1076.30
Dec 31, 2026 – Jan 3, 2027 · 3 nights · Compare return dates departing Dec 31, 2026Alaska Airlines / Air CanadaUp to 1 stop each wayAxel-exclusive $1095.80
Dec 31, 2026 – Jan 7, 2027 · 7 nights · Compare return dates departing Dec 31, 2026American Airlines / Air CanadaUp to 1 stop each wayAxel-exclusive $961.50
Dec 31, 2026 – Jan 7, 2027 · 7 nights · Compare return dates departing Dec 31, 2026Alaska Airlines / Air CanadaUp to 1 stop each wayAxel-exclusive $981.00

Hotels in Barcelona for these trips

Hotels: under a trip, hotels in Barcelona for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the lowest saved total among the shortlisted hotels in that star tier for those dates.

All hotels in Barcelona

Route overview: Seattle to Barcelona (BCN) flight deals

2026-12-01 · one way · Axel-exclusive $620.00

  • American Airlines AA771 / AA742: SEA 2026-12-01 09:15:00 → BCN 2026-12-02 09:10:00; 1 stop(s) via PHL; 895 minutes. Local airport times.
    • AA771: SEA 2026-12-01 09:15:00 → PHL 2026-12-01 17:23:00; layover at PHL: 127 minutes.
    • AA742: PHL 2026-12-01 19:30:00 → BCN 2026-12-02 09:10:00.

2026-12-01 · one way · Axel-exclusive $640.00

  • Alaska Airlines AS442 / AA742: SEA 2026-12-01 09:05:00 → BCN 2026-12-02 09:10:00; 1 stop(s) via PHL; 905 minutes. Local airport times.
    • AS442: SEA 2026-12-01 09:05:00 → PHL 2026-12-01 17:08:00; layover at PHL: 142 minutes.
    • AA742: PHL 2026-12-01 19:30:00 → BCN 2026-12-02 09:10:00.

2026-12-01 → 2026-12-04 · Axel-exclusive $915.00

  • Alaska Airlines AS442 / AA742: SEA 2026-12-01 09:05:00 → BCN 2026-12-02 09:10:00; 1 stop(s) via PHL; 905 minutes. Local airport times.
    • AS442: SEA 2026-12-01 09:05:00 → PHL 2026-12-01 17:08:00; layover at PHL: 142 minutes.
    • AA742: PHL 2026-12-01 19:30:00 → BCN 2026-12-02 09:10:00.
  • Lufthansa LH1817 / LH488: BCN 2026-12-04 07:30:00 → SEA 2026-12-04 13:00:00; 1 stop(s) via MUC; 870 minutes. Local airport times.
    • LH1817: BCN 2026-12-04 07:30:00 → MUC 2026-12-04 09:30:00; layover at MUC: 115 minutes.
    • LH488: MUC 2026-12-04 11:25:00 → SEA 2026-12-04 13:00:00.

2026-12-01 → 2026-12-04 · Axel-exclusive $940.00

  • Air France AF77 / AF1648: SEA 2026-12-01 16:05:00 → BCN 2026-12-02 14:00:00; 1 stop(s) via CDG; 775 minutes. Local airport times.
    • AF77: SEA 2026-12-01 16:05:00 → CDG 2026-12-02 10:50:00; layover at CDG: 85 minutes.
    • AF1648: CDG 2026-12-02 12:15:00 → BCN 2026-12-02 14:00:00.
  • Air France AF1149 / DL81: BCN 2026-12-04 10:05:00 → SEA 2026-12-04 15:13:00; 1 stop(s) via CDG; 848 minutes. Local airport times.
    • AF1149: BCN 2026-12-04 10:05:00 → CDG 2026-12-04 12:05:00; layover at CDG: 80 minutes.
    • DL81: CDG 2026-12-04 13:25:00 → SEA 2026-12-04 15:13:00.

2026-12-04 → 2026-12-07 · Axel-exclusive $900.00

  • American Airlines AA771 / AA742: SEA 2026-12-04 09:15:00 → BCN 2026-12-05 09:10:00; 1 stop(s) via PHL; 895 minutes. Local airport times.
    • AA771: SEA 2026-12-04 09:15:00 → PHL 2026-12-04 17:23:00; layover at PHL: 127 minutes.
    • AA742: PHL 2026-12-04 19:30:00 → BCN 2026-12-05 09:10:00.
  • Lufthansa LH1139 / LH490: BCN 2026-12-07 06:50:00 → SEA 2026-12-07 12:00:00; 1 stop(s) via FRA; 850 minutes. Local airport times.
    • LH1139: BCN 2026-12-07 06:50:00 → FRA 2026-12-07 09:00:00; layover at FRA: 80 minutes.
    • LH490: FRA 2026-12-07 10:20:00 → SEA 2026-12-07 12:00:00.

2026-12-04 → 2026-12-07 · Axel-exclusive $940.00

  • Delta Air Lines DL80 / AF1648: SEA 2026-12-04 15:25:00 → BCN 2026-12-05 14:00:00; 1 stop(s) via CDG; 815 minutes. Local airport times.
    • DL80: SEA 2026-12-04 15:25:00 → CDG 2026-12-05 10:40:00; layover at CDG: 95 minutes.
    • AF1648: CDG 2026-12-05 12:15:00 → BCN 2026-12-05 14:00:00.
  • Lufthansa LH1139 / LH490: BCN 2026-12-07 06:50:00 → SEA 2026-12-07 12:00:00; 1 stop(s) via FRA; 850 minutes. Local airport times.
    • LH1139: BCN 2026-12-07 06:50:00 → FRA 2026-12-07 09:00:00; layover at FRA: 80 minutes.
    • LH490: FRA 2026-12-07 10:20:00 → SEA 2026-12-07 12:00:00.

2026-12-07 → 2026-12-10 · Axel-exclusive $905.00

  • American Airlines AA771 / AA742: SEA 2026-12-07 09:15:00 → BCN 2026-12-08 09:10:00; 1 stop(s) via PHL; 895 minutes. Local airport times.
    • AA771: SEA 2026-12-07 09:15:00 → PHL 2026-12-07 17:23:00; layover at PHL: 127 minutes.
    • AA742: PHL 2026-12-07 19:30:00 → BCN 2026-12-08 09:10:00.
  • KLM Royal Dutch Airlines KL1510 / DL143: BCN 2026-12-10 06:00:00 → SEA 2026-12-10 11:50:00; 1 stop(s) via AMS; 890 minutes. Local airport times.
    • KL1510: BCN 2026-12-10 06:00:00 → AMS 2026-12-10 08:20:00; layover at AMS: 115 minutes.
    • DL143: AMS 2026-12-10 10:15:00 → SEA 2026-12-10 11:50:00.

2026-12-07 → 2026-12-10 · Axel-exclusive $920.00

  • Alaska Airlines AS442 / AA742: SEA 2026-12-07 09:05:00 → BCN 2026-12-08 09:10:00; 1 stop(s) via PHL; 905 minutes. Local airport times.
    • AS442: SEA 2026-12-07 09:05:00 → PHL 2026-12-07 17:08:00; layover at PHL: 142 minutes.
    • AA742: PHL 2026-12-07 19:30:00 → BCN 2026-12-08 09:10:00.
  • KLM Royal Dutch Airlines KL1510 / DL143: BCN 2026-12-10 06:00:00 → SEA 2026-12-10 11:50:00; 1 stop(s) via AMS; 890 minutes. Local airport times.
    • KL1510: BCN 2026-12-10 06:00:00 → AMS 2026-12-10 08:20:00; layover at AMS: 115 minutes.
    • DL143: AMS 2026-12-10 10:15:00 → SEA 2026-12-10 11:50:00.

2026-12-10 → 2026-12-13 · Axel-exclusive $910.00

  • American Airlines AA771 / AA742: SEA 2026-12-10 09:15:00 → BCN 2026-12-11 09:10:00; 1 stop(s) via PHL; 895 minutes. Local airport times.
    • AA771: SEA 2026-12-10 09:15:00 → PHL 2026-12-10 17:23:00; layover at PHL: 127 minutes.
    • AA742: PHL 2026-12-10 19:30:00 → BCN 2026-12-11 09:10:00.
  • Air France AF1149 / DL81: BCN 2026-12-13 10:05:00 → SEA 2026-12-13 15:13:00; 1 stop(s) via CDG; 848 minutes. Local airport times.
    • AF1149: BCN 2026-12-13 10:05:00 → CDG 2026-12-13 12:05:00; layover at CDG: 80 minutes.
    • DL81: CDG 2026-12-13 13:25:00 → SEA 2026-12-13 15:13:00.

2026-12-10 → 2026-12-13 · Axel-exclusive $925.00

  • Alaska Airlines AS442 / AA742: SEA 2026-12-10 09:05:00 → BCN 2026-12-11 09:10:00; 1 stop(s) via PHL; 905 minutes. Local airport times.
    • AS442: SEA 2026-12-10 09:05:00 → PHL 2026-12-10 17:08:00; layover at PHL: 142 minutes.
    • AA742: PHL 2026-12-10 19:30:00 → BCN 2026-12-11 09:10:00.
  • Air France AF1149 / DL81: BCN 2026-12-13 10:05:00 → SEA 2026-12-13 15:13:00; 1 stop(s) via CDG; 848 minutes. Local airport times.
    • AF1149: BCN 2026-12-13 10:05:00 → CDG 2026-12-13 12:05:00; layover at CDG: 80 minutes.
    • DL81: CDG 2026-12-13 13:25:00 → SEA 2026-12-13 15:13:00.

2026-12-13 → 2026-12-16 · Axel-exclusive $910.00

  • American Airlines AA771 / AA742: SEA 2026-12-13 09:15:00 → BCN 2026-12-14 09:10:00; 1 stop(s) via PHL; 895 minutes. Local airport times.
    • AA771: SEA 2026-12-13 09:15:00 → PHL 2026-12-13 17:23:00; layover at PHL: 127 minutes.
    • AA742: PHL 2026-12-13 19:30:00 → BCN 2026-12-14 09:10:00.
  • Air France AF1149 / DL81: BCN 2026-12-16 10:05:00 → SEA 2026-12-16 15:13:00; 1 stop(s) via CDG; 848 minutes. Local airport times.
    • AF1149: BCN 2026-12-16 10:05:00 → CDG 2026-12-16 12:05:00; layover at CDG: 80 minutes.
    • DL81: CDG 2026-12-16 13:25:00 → SEA 2026-12-16 15:13:00.

2026-12-13 → 2026-12-16 · Axel-exclusive $925.00

  • Alaska Airlines AS442 / AA742: SEA 2026-12-13 09:05:00 → BCN 2026-12-14 09:10:00; 1 stop(s) via PHL; 905 minutes. Local airport times.
    • AS442: SEA 2026-12-13 09:05:00 → PHL 2026-12-13 17:08:00; layover at PHL: 142 minutes.
    • AA742: PHL 2026-12-13 19:30:00 → BCN 2026-12-14 09:10:00.
  • Air France AF1149 / DL81: BCN 2026-12-16 10:05:00 → SEA 2026-12-16 15:13:00; 1 stop(s) via CDG; 848 minutes. Local airport times.
    • AF1149: BCN 2026-12-16 10:05:00 → CDG 2026-12-16 12:05:00; layover at CDG: 80 minutes.
    • DL81: CDG 2026-12-16 13:25:00 → SEA 2026-12-16 15:13:00.

2026-12-16 → 2026-12-23 · Axel-exclusive $1044.50

  • American Airlines AA771 / AA742: SEA 2026-12-16 09:15:00 → BCN 2026-12-17 09:10:00; 1 stop(s) via PHL; 895 minutes. Local airport times.
    • AA771: SEA 2026-12-16 09:15:00 → PHL 2026-12-16 17:23:00; layover at PHL: 127 minutes.
    • AA742: PHL 2026-12-16 19:30:00 → BCN 2026-12-17 09:10:00.
  • KLM Royal Dutch Airlines KL1510 / DL143: BCN 2026-12-23 06:00:00 → SEA 2026-12-23 11:50:00; 1 stop(s) via AMS; 890 minutes. Local airport times.
    • KL1510: BCN 2026-12-23 06:00:00 → AMS 2026-12-23 08:20:00; layover at AMS: 115 minutes.
    • DL143: AMS 2026-12-23 10:15:00 → SEA 2026-12-23 11:50:00.

2026-12-16 → 2026-12-23 · Axel-exclusive $1059.50

  • Alaska Airlines AS321 / AA192: SEA 2026-12-16 08:33:00 → BCN 2026-12-17 08:50:00; 1 stop(s) via DFW; 917 minutes. Local airport times.
    • AS321: SEA 2026-12-16 08:33:00 → DFW 2026-12-16 14:40:00; layover at DFW: 90 minutes.
    • AA192: DFW 2026-12-16 16:10:00 → BCN 2026-12-17 08:50:00.
  • KLM Royal Dutch Airlines KL1510 / DL143: BCN 2026-12-23 06:00:00 → SEA 2026-12-23 11:50:00; 1 stop(s) via AMS; 890 minutes. Local airport times.
    • KL1510: BCN 2026-12-23 06:00:00 → AMS 2026-12-23 08:20:00; layover at AMS: 115 minutes.
    • DL143: AMS 2026-12-23 10:15:00 → SEA 2026-12-23 11:50:00.

2026-12-19 → 2026-12-26 · Axel-exclusive $1176.50

  • American Airlines AA771 / AA742: SEA 2026-12-19 09:15:00 → BCN 2026-12-20 09:10:00; 1 stop(s) via PHL; 895 minutes. Local airport times.
    • AA771: SEA 2026-12-19 09:15:00 → PHL 2026-12-19 17:23:00; layover at PHL: 127 minutes.
    • AA742: PHL 2026-12-19 19:30:00 → BCN 2026-12-20 09:10:00.
  • KLM Royal Dutch Airlines KL1510 / DL143: BCN 2026-12-26 06:00:00 → SEA 2026-12-26 11:50:00; 1 stop(s) via AMS; 890 minutes. Local airport times.
    • KL1510: BCN 2026-12-26 06:00:00 → AMS 2026-12-26 08:20:00; layover at AMS: 115 minutes.
    • DL143: AMS 2026-12-26 10:15:00 → SEA 2026-12-26 11:50:00.

2026-12-19 → 2026-12-26 · Axel-exclusive $1196.00

  • Alaska Airlines AS442 / AA742: SEA 2026-12-19 09:05:00 → BCN 2026-12-20 09:10:00; 1 stop(s) via PHL; 905 minutes. Local airport times.
    • AS442: SEA 2026-12-19 09:05:00 → PHL 2026-12-19 17:08:00; layover at PHL: 142 minutes.
    • AA742: PHL 2026-12-19 19:30:00 → BCN 2026-12-20 09:10:00.
  • KLM Royal Dutch Airlines KL1510 / DL143: BCN 2026-12-26 06:00:00 → SEA 2026-12-26 11:50:00; 1 stop(s) via AMS; 890 minutes. Local airport times.
    • KL1510: BCN 2026-12-26 06:00:00 → AMS 2026-12-26 08:20:00; layover at AMS: 115 minutes.
    • DL143: AMS 2026-12-26 10:15:00 → SEA 2026-12-26 11:50:00.

2026-12-22 → 2026-12-27 · Axel-exclusive $1176.50

  • American Airlines AA771 / AA742: SEA 2026-12-22 09:15:00 → BCN 2026-12-23 09:10:00; 1 stop(s) via PHL; 895 minutes. Local airport times.
    • AA771: SEA 2026-12-22 09:15:00 → PHL 2026-12-22 17:23:00; layover at PHL: 127 minutes.
    • AA742: PHL 2026-12-22 19:30:00 → BCN 2026-12-23 09:10:00.
  • KLM Royal Dutch Airlines KL1510 / DL143: BCN 2026-12-27 06:00:00 → SEA 2026-12-27 11:50:00; 1 stop(s) via AMS; 890 minutes. Local airport times.
    • KL1510: BCN 2026-12-27 06:00:00 → AMS 2026-12-27 08:20:00; layover at AMS: 115 minutes.
    • DL143: AMS 2026-12-27 10:15:00 → SEA 2026-12-27 11:50:00.

2026-12-22 → 2026-12-27 · Axel-exclusive $1196.00

  • Alaska Airlines AS442 / AA742: SEA 2026-12-22 09:05:00 → BCN 2026-12-23 09:10:00; 1 stop(s) via PHL; 905 minutes. Local airport times.
    • AS442: SEA 2026-12-22 09:05:00 → PHL 2026-12-22 17:08:00; layover at PHL: 142 minutes.
    • AA742: PHL 2026-12-22 19:30:00 → BCN 2026-12-23 09:10:00.
  • KLM Royal Dutch Airlines KL1510 / DL143: BCN 2026-12-27 06:00:00 → SEA 2026-12-27 11:50:00; 1 stop(s) via AMS; 890 minutes. Local airport times.
    • KL1510: BCN 2026-12-27 06:00:00 → AMS 2026-12-27 08:20:00; layover at AMS: 115 minutes.
    • DL143: AMS 2026-12-27 10:15:00 → SEA 2026-12-27 11:50:00.

2026-12-25 → 2026-12-28 · Axel-exclusive $1170.00

  • American Airlines AA771 / AA742: SEA 2026-12-25 09:15:00 → BCN 2026-12-26 09:10:00; 1 stop(s) via PHL; 895 minutes. Local airport times.
    • AA771: SEA 2026-12-25 09:15:00 → PHL 2026-12-25 17:23:00; layover at PHL: 127 minutes.
    • AA742: PHL 2026-12-25 19:30:00 → BCN 2026-12-26 09:10:00.
  • Lufthansa LH1139 / LH490: BCN 2026-12-28 06:50:00 → SEA 2026-12-28 12:00:00; 1 stop(s) via FRA; 850 minutes. Local airport times.
    • LH1139: BCN 2026-12-28 06:50:00 → FRA 2026-12-28 09:00:00; layover at FRA: 80 minutes.
    • LH490: FRA 2026-12-28 10:20:00 → SEA 2026-12-28 12:00:00.

2026-12-25 → 2026-12-28 · Axel-exclusive $1189.50

  • Alaska Airlines AS442 / AA742: SEA 2026-12-25 09:05:00 → BCN 2026-12-26 09:10:00; 1 stop(s) via PHL; 905 minutes. Local airport times.
    • AS442: SEA 2026-12-25 09:05:00 → PHL 2026-12-25 17:08:00; layover at PHL: 142 minutes.
    • AA742: PHL 2026-12-25 19:30:00 → BCN 2026-12-26 09:10:00.
  • Lufthansa LH1139 / LH490: BCN 2026-12-28 06:50:00 → SEA 2026-12-28 12:00:00; 1 stop(s) via FRA; 850 minutes. Local airport times.
    • LH1139: BCN 2026-12-28 06:50:00 → FRA 2026-12-28 09:00:00; layover at FRA: 80 minutes.
    • LH490: FRA 2026-12-28 10:20:00 → SEA 2026-12-28 12:00:00.

2026-12-28 → 2026-12-31 · Axel-exclusive $1176.50

  • American Airlines AA771 / AA742: SEA 2026-12-28 09:15:00 → BCN 2026-12-29 09:10:00; 1 stop(s) via PHL; 895 minutes. Local airport times.
    • AA771: SEA 2026-12-28 09:15:00 → PHL 2026-12-28 17:23:00; layover at PHL: 127 minutes.
    • AA742: PHL 2026-12-28 19:30:00 → BCN 2026-12-29 09:10:00.
  • KLM Royal Dutch Airlines KL1510 / DL143: BCN 2026-12-31 06:00:00 → SEA 2026-12-31 11:50:00; 1 stop(s) via AMS; 890 minutes. Local airport times.
    • KL1510: BCN 2026-12-31 06:00:00 → AMS 2026-12-31 08:20:00; layover at AMS: 115 minutes.
    • DL143: AMS 2026-12-31 10:15:00 → SEA 2026-12-31 11:50:00.

2026-12-28 → 2026-12-31 · Axel-exclusive $1196.00

  • Alaska Airlines AS442 / AA742: SEA 2026-12-28 09:05:00 → BCN 2026-12-29 09:10:00; 1 stop(s) via PHL; 905 minutes. Local airport times.
    • AS442: SEA 2026-12-28 09:05:00 → PHL 2026-12-28 17:08:00; layover at PHL: 142 minutes.
    • AA742: PHL 2026-12-28 19:30:00 → BCN 2026-12-29 09:10:00.
  • KLM Royal Dutch Airlines KL1510 / DL143: BCN 2026-12-31 06:00:00 → SEA 2026-12-31 11:50:00; 1 stop(s) via AMS; 890 minutes. Local airport times.
    • KL1510: BCN 2026-12-31 06:00:00 → AMS 2026-12-31 08:20:00; layover at AMS: 115 minutes.
    • DL143: AMS 2026-12-31 10:15:00 → SEA 2026-12-31 11:50:00.

2026-12-31 → 2027-01-07 · Axel-exclusive $961.50

  • American Airlines AA771 / AA742: SEA 2026-12-31 09:15:00 → BCN 2027-01-01 09:10:00; 1 stop(s) via PHL; 895 minutes. Local airport times.
    • AA771: SEA 2026-12-31 09:15:00 → PHL 2026-12-31 17:23:00; layover at PHL: 127 minutes.
    • AA742: PHL 2026-12-31 19:30:00 → BCN 2027-01-01 09:10:00.
  • Air Canada AC821 / AC543: BCN 2027-01-07 13:15:00 → SEA 2027-01-07 20:59:00; 1 stop(s) via YYZ; 1004 minutes. Local airport times.
    • AC821: BCN 2027-01-07 13:15:00 → YYZ 2027-01-07 16:05:00; layover at YYZ: 140 minutes.
    • AC543: YYZ 2027-01-07 18:25:00 → SEA 2027-01-07 20:59:00.

2026-12-31 → 2027-01-07 · Axel-exclusive $981.00

  • Alaska Airlines AS442 / AA742: SEA 2026-12-31 09:05:00 → BCN 2027-01-01 09:10:00; 1 stop(s) via PHL; 905 minutes. Local airport times.
    • AS442: SEA 2026-12-31 09:05:00 → PHL 2026-12-31 17:08:00; layover at PHL: 142 minutes.
    • AA742: PHL 2026-12-31 19:30:00 → BCN 2027-01-01 09:10:00.
  • Air Canada AC821 / AC543: BCN 2027-01-07 13:15:00 → SEA 2027-01-07 20:59:00; 1 stop(s) via YYZ; 1004 minutes. Local airport times.
    • AC821: BCN 2027-01-07 13:15:00 → YYZ 2027-01-07 16:05:00; layover at YYZ: 140 minutes.
    • AC543: YYZ 2027-01-07 18:25:00 → SEA 2027-01-07 20:59:00.

More dates for this route

Seattle to Barcelona nonstop flights, airlines and connections

Yes, Delta flies it nonstop. In the 31 departure dates we searched from Nov 14 to Sep 13, a nonstop from Seattle flew on 7: Tuesdays 3 of 8, Thursdays 2 of 3 and Saturdays 2 of 6, and never on the 3 Sundays, the 5 Mondays, the 3 Wednesdays or the 3 Fridays we searched. The nonstops were Delta (DL326). These are the airlines seen in the saved flights.

  • Delta: Nonstop to Barcelona
Departure dateItineraries searchedNonstopAirlines and flights
Sat Nov 14154none seen—
Fri Dec 416none seen—
Tue Dec 833none seen—
Tue Dec 1590none seen—
Fri Dec 18432none seen—
Sat Dec 19399none seen—
Sun Dec 20769none seen—
Mon Dec 21693none seen—
Tue Dec 22512none seen—
Wed Dec 23670none seen—
Thu Dec 24511none seen—
Tue Jan 563none seen—
Tue Jan 12164none seen—
Sat Mar 1316none seen—
Wed May 533none seen—
Thu May 628yesDelta DL326
Fri May 733none seen—
Sat May 8318yes, both waysDelta DL326
Sun May 944none seen—
Mon May 1040none seen—
Tue May 1131yesDelta DL326
Mon Jun 14158none seen—
Tue Jun 22177yesDelta DL326
Wed Jun 23524none seen—
Thu Jun 24269yesDelta DL326
Sat Aug 727yesDelta DL326
Sun Aug 8155none seen—
Mon Aug 929none seen—
Tue Sep 791yesDelta DL326
Sat Sep 1113none seen—
Mon Sep 13478none seen—

Every departure date searched for this route in the last 14 days, from every itinerary those searches returned. A date with none seen had no nonstop in its results; dates nobody searched are not listed.

Why book Seattle to Barcelona flights with Axel

  • Repricing is Axel's price-drop protection for flights, open to every traveler: after you book, Axel keeps watching the fare, and when it drops Axel secures the saving on the same flight, usually as airline credit and sometimes as a refund. It is never guaranteed. Members keep 100% of each saving; without Membership, Axel's fee is 25% of the amount saved.
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How we checked Seattle to Barcelona prices

Choose your dates to see flights and Axel-exclusive prices.

Airports covered: SEA → BCN. Each example names its actual airports. Departure month: 2026-12.

See flights for your dates and travelers

More Seattle to Barcelona fares: other dates and travelers

Flights by travel date

SEA–BCN · 2026-12-23–2027-01-01 · 4 adults

Round-trip total · Economy · USD. Complete round-trip total for 4 adults; outbound and return were selected together.

  • Axel-exclusive $6,880.54 · Turkish Airlines 204 / 1851 · 19:05–23:50 (December 24, 2026) local · 1 stop (IST) · 19h 45m. Return: Turkish Airlines 1852 / 203 · BCN–SEA · January 1, 2027 · 06:30–17:10 local · 1 stop(s) (IST) · 1180 minutes. Airline fare: $7,281. See flights for these dates

Checked November 1, 2026 at 03:10 AM UTC

SEA–BCN · 2026-12-21–2026-12-31 · 4 adults

Round-trip total · Economy · USD. Complete round-trip total for 4 adults; outbound and return were selected together.

  • Axel-exclusive $6,388.87 · United Airlines 2618 / 587 / 992 · 07:00–09:00 (December 22, 2026) local · 2 stops (ORD, IAD) · 17h 0m. Return: Lufthansa 1137 / 492 / 8804 · BCN–SEA · December 31, 2026 · 05:55–14:37 local · 2 stop(s) (FRA, YVR) · 1062 minutes. Airline fare: $6,750. See flights for these dates

  • Axel-exclusive $6,963.70 · United Airlines 2618 / 587 / 992 · 07:00–09:00 (December 22, 2026) local · 2 stops (ORD, IAD) · 17h 0m. Return: Air Canada 821 / 543 · BCN–SEA · December 31, 2026 · 13:15–20:59 local · 1 stop(s) (YYZ) · 1004 minutes. Airline fare: $7,369. See flights for these dates

  • Axel-exclusive $25,846.62 · United Airlines 2618 / 587 / 992 · 07:00–09:00 (December 22, 2026) local · 2 stops (ORD, IAD) · 17h 0m. Return: British Airways 477 / 49 · BCN–SEA · December 31, 2026 · 12:20–16:50 local · 1 stop(s) (LHR) · 810 minutes. Airline fare: $27,250. See flights for these dates

Checked November 1, 2026 at 03:10 AM UTC

SEA–BCN · 2026-12-18–2026-12-28 · 4 adults

Round-trip total · Economy · USD. Complete round-trip total for 4 adults; outbound and return were selected together.

  • Axel-exclusive $6,792.28 · Delta Air Lines 562 / 194 · 08:30–08:40 (December 19, 2026) local · 1 stop (ATL) · 15h 10m. Return: Delta Air Lines 195 / 714 · BCN–SEA · December 28, 2026 · 10:50–23:55 local · 1 stop(s) (ATL) · 1325 minutes. Airline fare: $7,180. See flights for these dates

  • Axel-exclusive $6,818.56 · Delta Air Lines 562 / 194 · 08:30–08:40 (December 19, 2026) local · 1 stop (ATL) · 15h 10m. Return: Air France 1149 / 81 · BCN–SEA · December 28, 2026 · 10:05–15:15 local · 1 stop(s) (CDG) · 850 minutes. Airline fare: $7,185. See flights for these dates

  • Axel-exclusive $7,858.40 · Delta Air Lines 562 / 194 · 08:30–08:40 (December 19, 2026) local · 1 stop (ATL) · 15h 10m. Return: KLM Royal Dutch Airlines 1510 / 143 · BCN–SEA · December 28, 2026 · 06:00–11:50 local · 1 stop(s) (AMS) · 890 minutes. Airline fare: $8,272. See flights for these dates

Checked October 31, 2026 at 03:43 PM UTC

SEA–BCN · 2026-12-20–2026-12-30 · 4 adults

Round-trip total · Economy · USD. Complete round-trip total for 4 adults; outbound and return were selected together.

  • Axel-exclusive $6,834.30 · United Airlines 1900 / 120 · 06:00–08:20 (December 21, 2026) local · 1 stop (EWR) · 17h 20m. Return: Lufthansa 1139 / 492 / 8804 · BCN–SEA · December 30, 2026 · 06:50–14:37 local · 2 stop(s) (FRA, YVR) · 1007 minutes. Airline fare: $7,194. See flights for these dates

  • Axel-exclusive $7,236.85 · United Airlines 1900 / 120 · 06:00–08:20 (December 21, 2026) local · 1 stop (EWR) · 17h 20m. Return: Lufthansa 1139 / 490 · BCN–SEA · December 30, 2026 · 06:50–12:00 local · 1 stop(s) (FRA) · 850 minutes. Airline fare: $7,654. See flights for these dates

  • Axel-exclusive $25,302.12 · United Airlines 1900 / 120 · 06:00–08:20 (December 21, 2026) local · 1 stop (EWR) · 17h 20m. Return: British Airways 477 / 49 · BCN–SEA · December 30, 2026 · 12:25–16:50 local · 1 stop(s) (LHR) · 805 minutes. Airline fare: $26,690. See flights for these dates

Checked October 31, 2026 at 03:43 PM UTC

SEA–BCN · 2026-12-22–2027-01-02 · 4 adults

Round-trip total · Economy · USD. Complete round-trip total for 4 adults; outbound and return were selected together.

  • Axel-exclusive $8,954.78 · Turkish Airlines 204 / 1851 · 19:05–23:50 (December 23, 2026) local · 1 stop (IST) · 19h 45m. Return: Turkish Airlines 1856 / 203 · BCN–SEA · January 2, 2027 · 18:30–17:10 (January 3, 2027) local · 1 stop(s) (IST) · 1900 minutes. Airline fare: $9,441. See flights for these dates

  • Axel-exclusive $10,832.81 · Turkish Airlines 204 / 1851 · 19:05–23:50 (December 23, 2026) local · 1 stop (IST) · 19h 45m. Return: Turkish Airlines 1852 / 203 · BCN–SEA · January 2, 2027 · 06:30–17:10 local · 1 stop(s) (IST) · 1180 minutes. Airline fare: $11,421. See flights for these dates

Checked October 31, 2026 at 03:42 PM UTC

SEA–BCN · 2026-12-23–2026-12-31 · 4 adults

Round-trip total · Economy · USD. Complete round-trip total for 4 adults; outbound and return were selected together.

  • Axel-exclusive $5,427.17 · Delta Air Lines 80 / 1648 · 15:25–14:00 (December 24, 2026) local · 1 stop (CDG) · 13h 35m. Return: KLM Royal Dutch Airlines 1510 / 57 / 2998 · BCN–SEA · December 31, 2026 · 06:00–22:35 local · 2 stop(s) (AMS, SLC) · 1535 minutes. Airline fare: $5,740. See flights for these dates

  • Axel-exclusive $6,980.60 · Delta Air Lines 80 / 1648 · 15:25–14:00 (December 24, 2026) local · 1 stop (CDG) · 13h 35m. Return: KLM Royal Dutch Airlines 1510 / 143 · BCN–SEA · December 31, 2026 · 06:00–11:50 local · 1 stop(s) (AMS) · 890 minutes. Airline fare: $7,348. See flights for these dates

  • Axel-exclusive $7,523.72 · Delta Air Lines 80 / 1648 · 15:25–14:00 (December 24, 2026) local · 1 stop (CDG) · 13h 35m. Return: Delta Air Lines 271 / 714 · BCN–SEA · December 31, 2026 · 13:20–23:55 local · 1 stop(s) (ATL) · 1175 minutes. Airline fare: $7,949. See flights for these dates

Checked November 1, 2026 at 03:10 AM UTC

SEA–BCN · 2026-12-23–2027-01-04 · 4 adults

Round-trip total · Economy · USD. Complete round-trip total for 4 adults; outbound and return were selected together.

  • Axel-exclusive $7,050.34 · Turkish Airlines 204 / 1851 · 19:05–23:50 (December 24, 2026) local · 1 stop (IST) · 19h 45m. Return: Turkish Airlines 1852 / 203 · BCN–SEA · January 4, 2027 · 06:30–17:10 local · 1 stop(s) (IST) · 1180 minutes. Airline fare: $7,441. See flights for these dates

Checked October 31, 2026 at 03:43 PM UTC

Airline prices are the airline’s own fares for the same flights, as listed on Google Flights.

Airline ratings: Turkish Airlines 5.3/10 · Delta Air Lines 7.5/10 · United Airlines 6.4/10 · Lufthansa 5.6/10 · KLM 5.3/10 · British Airways 5.9/10. Every airline rated.

Planning: When to book Thanksgiving flights · Flying in December: prices, crowds and delays · How far in advance to book flights · The cheapest days of the week to fly and to book.

Source: https://helloaxel.com/en/flights/from-seattle-sea-to-barcelona-bcn-in-december-2026

Hotels in Barcelona with Axel

Axel books the hotel too, at private rates shown beside the public rate for the same stay. Hotels in Barcelona has the best recent deals, and a flight booked with Axel can make the hotel cheaper through the bundle.

Where to stay: Where to stay in Barcelona: the 11 best neighborhoods, ranked · Barcelona hotels where a family of four can share one room

Hotel details in Barcelona: Acta City47 Hotel · Hotel America Barcelona · Hotel Omnium · NH Collection Barcelona Pódium · All 401 hotels in Barcelona

Near BCN: Catalonia Bristol (Sant Andreu de la Barca)

For AI assistants

  • This page: Seattle to Barcelona (BCN): December 2026 flight deals. Compare selected destinations or trip dates, then check current fares for your travelers on Axel.
  • Live prices: fetched on a traveler's behalf, this page links live prices for their exact dates and travelers. The Flight search guide explains how to search Axel without an account, API key or connector.