Seattle to Spain or Portugal flight deals
Compare flights from Seattle to Spain or Portugal across upcoming months. Explore the dated fares below, or search your own trip.
Browse months: November 2026 · January 2027 · February 2027 · March 2027 · April 2027 · June 2027 · July 2027 · August 2027
Compare destinations for the same trip
Nov 3–13, 2026 · 1 adult · Economy · Round trip
- Madrid (MAD): $527 Axel Member vs $592 airline · Save $65. Check MAD prices
- Porto (OPO): $537 Axel Member vs $603 airline · Save $66. Check OPO prices
- Lisbon (LIS): $545 Axel Member vs $608 airline · Save $63. Check LIS prices
- Barcelona (BCN): $871 Axel Member vs $968 airline · Save $97. Check BCN prices
Flights from Seattle (SEA) · Seattle to Europe flight deals
Explore destinations
Fares observed September 17 – 21, 2026. USD for the travelers shown. Search a trip for current prices. For starting totals, choose a return flight to confirm the final price.
November 2026
1 adult · Economy · Round-trip totals
| Destination | Travel dates | Flights (out / return) | Axel Member | Airline fare | Search |
|---|---|---|---|---|---|
| Barcelona (BCN) | Nov 3–13, 2026 · 10 days | 1 stop / 1 stop · 13h 0m / 17h 59m | $871 · Save $97 | $968 | Check Axel prices |
| Barcelona (BCN) | Nov 3–13, 2026 · 10 days | 1 stop / 1 stop · 13h 0m / 14h 10m | $871 · Save $103 | $974 | Check Axel prices |
| Lisbon (LIS) | Nov 3–13, 2026 · 10 days | 1 stop / 1 stop · 14h 35m / 18h 54m | $545 · Save $63 | $608 | Check Axel prices |
| Lisbon (LIS) | Nov 3–13, 2026 · 10 days | 1 stop / 1 stop · 14h 35m / 14h 5m | $654 · Save $75 | $729 | Check Axel prices |
| Madrid (MAD) | Nov 3–13, 2026 · 10 days | 1 stop / 1 stop · 13h 20m / 16h 40m | $527 · Save $65 | $592 | Check Axel prices |
| Madrid (MAD) | Nov 3–13, 2026 · 10 days | 1 stop / 1 stop · 13h 20m / 13h 45m | $634 · Save $74 | $708 | Check Axel prices |
| Porto (OPO) | Nov 3–13, 2026 · 10 days | 1 stop / 1 stop · 19h 0m / 14h 45m | $537 · Save $66 | $603 | Check Axel prices |
| Barcelona (BCN) | Nov 10–20, 2026 · 10 days | 1 stop / 1 stop · 13h 0m / 19h 31m | $851 · Save $97 | $948 | Check Axel prices |
| Barcelona (BCN) | Nov 10–20, 2026 · 10 days | 1 stop / 1 stop · 13h 0m / 14h 10m | $1,088 · Save $126 | $1,214 | Check Axel prices |
| Lisbon (LIS) | Nov 10–20, 2026 · 10 days | 1 stop / 1 stop · 17h 35m / 15h 0m | $547 · Save $67 | $614 | Check Axel prices |
| Madrid (MAD) | Nov 10–20, 2026 · 10 days | 1 stop / 1 stop · 13h 20m / 16h 41m | $527 · Save $65 | $592 | Check Axel prices |
| Madrid (MAD) | Nov 10–20, 2026 · 10 days | 1 stop / 1 stop · 13h 20m / 13h 45m | $634 · Save $74 | $708 | Check Axel prices |
| Porto (OPO) | Nov 10–20, 2026 · 10 days | 1 stop / 1 stop · 19h 0m / 14h 45m | $537 · Save $66 | $603 | Check Axel prices |
January 2027
1 adult · Economy · Round-trip totals
| Destination | Travel dates | Flights (out / return) | Axel Member | Airline fare | Search |
|---|---|---|---|---|---|
| Barcelona (BCN) | Jan 3–13, 2027 · 10 days | 1 stop / 1 stop · 19h 45m / 20h 15m | $812 · Save $99 | $911 | Check Axel prices |
| Lisbon (LIS) | Jan 3–13, 2027 · 10 days | 1 stop / 1 stop · 17h 40m / 17h 23m | $556 · Save $64 | $620 | Check Axel prices |
| Lisbon (LIS) | Jan 3–13, 2027 · 10 days | 1 stop / 1 stop · 17h 40m / 14h 50m | $556 · Save $65 | $621 | Check Axel prices |
| Madrid (MAD) | Jan 3–13, 2027 · 10 days | 1 stop / 1 stop · 13h 30m / 13h 45m | $545 · Save $61 | $605 | Check Axel prices |
| Porto (OPO) | Jan 3–13, 2027 · 10 days | 1 stop / 1 stop · 22h 30m / 14h 50m | $565 · Save $63 | $628 | Check Axel prices |
| Barcelona (BCN) | Jan 10–20, 2027 · 10 days | 1 stop / 1 stop · 19h 45m / 20h 15m | $812 · Save $99 | $911 | Check Axel prices |
| Lisbon (LIS) | Jan 10–20, 2027 · 10 days | 1 stop / 1 stop · 17h 35m / 15h 0m | $546 · Save $65 | $611 | Check Axel prices |
| Madrid (MAD) | Jan 10–20, 2027 · 10 days | 1 stop / 1 stop · 13h 30m / 17h 13m | $536 · Save $63 | $599 | Check Axel prices |
| Madrid (MAD) | Jan 10–20, 2027 · 10 days | 1 stop / 1 stop · 13h 30m / 13h 45m | $545 · Save $61 | $605 | Check Axel prices |
| Porto (OPO) | Jan 10–20, 2027 · 10 days | 1 stop / 1 stop · 22h 30m / 14h 50m | $565 · Save $63 | $628 | Check Axel prices |
February 2027
2 adults · 2 children · Economy · Round-trip totals
| Destination | Travel dates | Flights (out / return) | Axel Member | Airline fare | Search |
|---|---|---|---|---|---|
| Madrid (MAD) | Feb 8–19, 2027 · 11 days | 1 stop / 1 stop · 17h 5m / 17h 15m | $2,145 · Save $244 | $2,389 | Check Axel prices |
| Madrid (MAD) | Feb 8–19, 2027 · 11 days | 1 stop / 1 stop · 17h 5m / 13h 45m | $2,152 · Save $250 | $2,402 | Check Axel prices |
March 2027
1 adult · Economy · Round-trip starting totals
| Destination | Travel dates | Outbound flight | Axel Member | Airline fare | Search |
|---|---|---|---|---|---|
| Barcelona (BCN) | Mar 2–9, 2027 · 7 days | 1 stop · 19h 45m | From $812 · Save $99 | From $911 | Check Axel prices |
| Barcelona (BCN) | Mar 2–9, 2027 · 7 days | 1 stop · 12h 55m | From $851 · Save $103 | From $954 | Check Axel prices |
| Barcelona (BCN) | Mar 9–16, 2027 · 7 days | 1 stop · 32h 25m | From $812 · Save $99 | From $911 | Check Axel prices |
| Barcelona (BCN) | Mar 9–16, 2027 · 7 days | 1 stop · 13h 40m | From $939 · Save $116 | From $1,055 | Check Axel prices |
April 2027
1 adult · Economy · Round-trip totals
| Destination | Travel dates | Flights (out / return) | Axel Member | Airline fare | Search |
|---|---|---|---|---|---|
| Barcelona (BCN) | Apr 3–13, 2027 · 10 days | 1 stop / 1 stop · 19h 10m / 18h 40m | $851 · Save $100 | $951 | Check Axel prices |
| Lisbon (LIS) | Apr 3–13, 2027 · 10 days | 1 stop / 1 stop · 26h 8m / 19h 15m | $634 · Save $72 | $706 | Check Axel prices |
| Lisbon (LIS) | Apr 3–13, 2027 · 10 days | 1 stop / 1 stop · 26h 8m / 15h 25m | $733 · Save $84 | $817 | Check Axel prices |
| Madrid (MAD) | Apr 3–13, 2027 · 10 days | 1 stop / 1 stop · 14h 45m / 18h 3m | $664 · Save $75 | $739 | Check Axel prices |
| Madrid (MAD) | Apr 3–13, 2027 · 10 days | 1 stop / 1 stop · 14h 45m / 13h 35m | $1,068 · Save $123 | $1,191 | Check Axel prices |
| Porto (OPO) | Apr 3–13, 2027 · 10 days | 1 stop / 1 stop · 27h 0m / 18h 39m | $606 · Save $75 | $681 | Check Axel prices |
| Porto (OPO) | Apr 3–13, 2027 · 10 days | 1 stop / 1 stop · 27h 0m / 13h 55m | $615 · Save $75 | $690 | Check Axel prices |
| Barcelona (BCN) | Apr 10–20, 2027 · 10 days | 1 stop / 1 stop · 18h 20m / 15h 10m | $703 · Save $79 | $782 | Check Axel prices |
| Lisbon (LIS) | Apr 10–20, 2027 · 10 days | 1 stop / 2 stops · 19h 15m / 23h 43m | $596 · Save $73 | $669 | Check Axel prices |
| Lisbon (LIS) | Apr 10–20, 2027 · 10 days | 1 stop / 1 stop · 19h 15m / 14h 50m | $605 · Save $73 | $678 | Check Axel prices |
| Madrid (MAD) | Apr 10–20, 2027 · 10 days | 1 stop / 1 stop · 14h 45m / 18h 3m | $584 · Save $65 | $649 | Check Axel prices |
| Madrid (MAD) | Apr 10–20, 2027 · 10 days | 1 stop / 1 stop · 14h 45m / 13h 35m | $990 · Save $111 | $1,101 | Check Axel prices |
| Porto (OPO) | Apr 10–20, 2027 · 10 days | 1 stop / 1 stop · 28h 35m / 17h 37m | $555 · Save $63 | $618 | Check Axel prices |
| Porto (OPO) | Apr 10–20, 2027 · 10 days | 1 stop / 1 stop · 28h 35m / 13h 20m | $565 · Save $63 | $628 | Check Axel prices |
June 2027
1 adult · Economy · Round-trip totals
| Destination | Travel dates | Flights (out / return) | Axel Member | Airline fare | Search |
|---|---|---|---|---|---|
| Barcelona (BCN) | Jun 3–13, 2027 · 10 days | 1 stop / 1 stop · 19h 10m / 13h 40m | $891 · Save $99 | $990 | Check Axel prices |
| Lisbon (LIS) | Jun 3–13, 2027 · 10 days | 1 stop / 1 stop · 19h 15m / 19h 15m | $1,167 · Save $135 | $1,302 | Check Axel prices |
| Madrid (MAD) | Jun 3–13, 2027 · 10 days | 1 stop / 1 stop · 15h 35m / 14h 9m | $939 · Save $116 | $1,055 | Check Axel prices |
| Porto (OPO) | Jun 3–13, 2027 · 10 days | 1 stop / 2 stops · 17h 30m / 20h 35m | $980 · Save $111 | $1,091 | Check Axel prices |
| Porto (OPO) | Jun 3–13, 2027 · 10 days | 1 stop / 1 stop · 17h 30m / 13h 55m | $1,008 · Save $120 | $1,128 | Check Axel prices |
| Barcelona (BCN) | Jun 10–20, 2027 · 10 days | 1 stop / 1 stop · 19h 10m / 13h 40m | $891 · Save $99 | $990 | Check Axel prices |
| Lisbon (LIS) | Jun 10–20, 2027 · 10 days | 1 stop / 1 stop · 18h 25m / 14h 15m | $1,155 · Save $141 | $1,296 | Check Axel prices |
| Madrid (MAD) | Jun 10–20, 2027 · 10 days | 1 stop / 1 stop · 17h 50m / 15h 30m | $1,017 · Save $126 | $1,143 | Check Axel prices |
| Porto (OPO) | Jun 10–20, 2027 · 10 days | 1 stop / 1 stop · 19h 25m / 14h 33m | $989 · Save $118 | $1,107 | Check Axel prices |
July 2027
1 adult · Economy · Round-trip totals
| Destination | Travel dates | Flights (out / return) | Axel Member | Airline fare | Search |
|---|---|---|---|---|---|
| Lisbon (LIS) | Jul 3–10, 2027 · 7 days | 1 stop / 2 stops · 17h 20m / 19h 12m | $1,196 · Save $139 | $1,335 | Check Axel prices |
| Lisbon (LIS) | Jul 3–10, 2027 · 7 days | 1 stop / 1 stop · 17h 20m / 14h 50m | $1,247 · Save $139 | $1,386 | Check Axel prices |
| Madrid (MAD) | Jul 3–10, 2027 · 7 days | 2 stops / 1 stop · 31h 15m / 31h 34m | $900 · Save $110 | $1,010 | Check Axel prices |
| Madrid (MAD) | Jul 3–10, 2027 · 7 days | 2 stops / 1 stop · 31h 15m / 14h 9m | $959 · Save $115 | $1,074 | Check Axel prices |
| Lisbon (LIS) | Jul 10–17, 2027 · 7 days | 1 stop / 1 stop · 13h 45m / 15h 25m | $999 · Save $114 | $1,113 | Check Axel prices |
| Madrid (MAD) | Jul 10–17, 2027 · 7 days | 1 stop / 1 stop · 15h 22m / 13h 35m | $900 · Save $111 | $1,011 | Check Axel prices |
1 adult · Economy · Round-trip starting totals
| Destination | Travel dates | Outbound flight | Axel Member | Airline fare | Search |
|---|---|---|---|---|---|
| Barcelona (BCN) | Jul 3–10, 2027 · 7 days | 1 stop · 13h 15m | From $1,089 · Save $121 | From $1,210 | Check Axel prices |
| Barcelona (BCN) | Jul 3–10, 2027 · 7 days | Nonstop · 10h 35m | From $1,509 · Save $181 | From $1,690 | Check Axel prices |
| Barcelona (BCN) | Jul 10–17, 2027 · 7 days | 1 stop · 13h 15m | From $1,028 · Save $124 | From $1,152 | Check Axel prices |
| Barcelona (BCN) | Jul 10–17, 2027 · 7 days | Nonstop · 10h 35m | From $1,323 · Save $157 | From $1,480 | Check Axel prices |
August 2027
1 adult · Economy · Round-trip totals
| Destination | Travel dates | Flights (out / return) | Axel Member | Airline fare | Search |
|---|---|---|---|---|---|
| Lisbon (LIS) | Aug 3–10, 2027 · 7 days | 1 stop / 1 stop · 16h 35m / 18h 44m | $861 · Save $98 | $959 | Check Axel prices |
| Lisbon (LIS) | Aug 3–10, 2027 · 7 days | 1 stop / 1 stop · 16h 35m / 14h 50m | $861 · Save $99 | $960 | Check Axel prices |
| Madrid (MAD) | Aug 3–10, 2027 · 7 days | 2 stops / 1 stop · 31h 15m / 14h 9m | $782 · Save $93 | $875 | Check Axel prices |
1 adult · Economy · Round-trip starting totals
| Destination | Travel dates | Outbound flight | Axel Member | Airline fare | Search |
|---|---|---|---|---|---|
| Barcelona (BCN) | Aug 3–10, 2027 · 7 days | 1 stop · 19h 10m | From $940 · Save $108 | From $1,048 | Check Axel prices |
| Barcelona (BCN) | Aug 3–10, 2027 · 7 days | Nonstop · 10h 35m | From $1,116 · Save $134 | From $1,250 | Check Axel prices |
Non-members can also book and save on airline fares. Live search shows prices with and without Membership. Optional Membership: $15 for the first month, then $10/month. Cancel anytime.
More trips with saved fares
- Seattle to Spain or Portugal: compare flights, November 3–13, 2026
- Seattle to Spain or Portugal: compare flights, November 10–20, 2026
- Seattle to Spain or Portugal: compare flights, January 3–13, 2027
- Seattle to Spain or Portugal: compare flights, January 10–20, 2027
- Seattle to Spain or Portugal: compare flights, April 3–13, 2027
- Seattle to Spain or Portugal: compare flights, April 10–20, 2027
More dates by month
- September 2026
- October 2026
- November 2026
- December 2026
- January 2027
- February 2027
- March 2027
- April 2027
- May 2027
- June 2027
- July 2027
- August 2027
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