Seattle (SEA) to Sun Valley (SUN), March 2027: flights from $200 one way

Compare flight prices from Seattle to Sun Valley for your dates. There are no recent complete one-adult round trips here to set a price target.

Axel shows the exact bookable round-trip price from Seattle to Sun Valley for your dates, one traveler, no account to see it.

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Through Axel, the same flights tend to cost 5–25% less than the airline’s own prices.

Flights in March 2027

Lowest published fares in March 2027: $374 round trip, Axel-exclusive, Alaska Airlines, nonstop, Mar 25, 2027 – Apr 1, 2027; $200 one way, Axel-exclusive, Alaska Airlines, nonstop, Mar 1, 2027; 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 Sun Valley (SUN): March 2027

Travel dates	Airline	Stops	Total price
Mar 1, 2027 · One way · Compare return dates departing Mar 1, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 1, 2027 · One way · Compare return dates departing Mar 1, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 1, 2027 – Mar 4, 2027 · 3 nights · Compare return dates departing Mar 1, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 1, 2027 – Mar 4, 2027 · 3 nights · Compare return dates departing Mar 1, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 1, 2027 – Mar 8, 2027 · 7 nights · Compare return dates departing Mar 1, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 1, 2027 – Mar 8, 2027 · 7 nights · Compare return dates departing Mar 1, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 2, 2027 · One way · Compare return dates departing Mar 2, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 2, 2027 · One way · Compare return dates departing Mar 2, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 2, 2027 – Mar 5, 2027 · 3 nights · Compare return dates departing Mar 2, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 2, 2027 – Mar 5, 2027 · 3 nights · Compare return dates departing Mar 2, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 2, 2027 – Mar 9, 2027 · 7 nights · Compare return dates departing Mar 2, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 2, 2027 – Mar 9, 2027 · 7 nights · Compare return dates departing Mar 2, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 3, 2027 · One way · Compare return dates departing Mar 3, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 3, 2027 · One way · Compare return dates departing Mar 3, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 3, 2027 – Mar 6, 2027 · 3 nights · Compare return dates departing Mar 3, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 3, 2027 – Mar 6, 2027 · 3 nights · Compare return dates departing Mar 3, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 3, 2027 – Mar 10, 2027 · 7 nights · Compare return dates departing Mar 3, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 3, 2027 – Mar 10, 2027 · 7 nights · Compare return dates departing Mar 3, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 4, 2027 · One way · Compare return dates departing Mar 4, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 4, 2027 · One way · Compare return dates departing Mar 4, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 4, 2027 – Mar 7, 2027 · 3 nights · Compare return dates departing Mar 4, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 4, 2027 – Mar 7, 2027 · 3 nights · Compare return dates departing Mar 4, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 4, 2027 – Mar 11, 2027 · 7 nights · Compare return dates departing Mar 4, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 4, 2027 – Mar 11, 2027 · 7 nights · Compare return dates departing Mar 4, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 5, 2027 · One way · Compare return dates departing Mar 5, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 5, 2027 · One way · Compare return dates departing Mar 5, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 5, 2027 – Mar 8, 2027 · 3 nights · Compare return dates departing Mar 5, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 5, 2027 – Mar 8, 2027 · 3 nights · Compare return dates departing Mar 5, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 5, 2027 – Mar 12, 2027 · 7 nights · Compare return dates departing Mar 5, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 5, 2027 – Mar 12, 2027 · 7 nights · Compare return dates departing Mar 5, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 6, 2027 · One way · Compare return dates departing Mar 6, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 6, 2027 · One way · Compare return dates departing Mar 6, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 6, 2027 – Mar 9, 2027 · 3 nights · Compare return dates departing Mar 6, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 6, 2027 – Mar 9, 2027 · 3 nights · Compare return dates departing Mar 6, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 6, 2027 – Mar 13, 2027 · 7 nights · Compare return dates departing Mar 6, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 6, 2027 – Mar 13, 2027 · 7 nights · Compare return dates departing Mar 6, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 7, 2027 · One way · Compare return dates departing Mar 7, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 7, 2027 · One way · Compare return dates departing Mar 7, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 7, 2027 – Mar 10, 2027 · 3 nights · Compare return dates departing Mar 7, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 7, 2027 – Mar 10, 2027 · 3 nights · Compare return dates departing Mar 7, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 7, 2027 – Mar 14, 2027 · 7 nights · Compare return dates departing Mar 7, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 7, 2027 – Mar 14, 2027 · 7 nights · Compare return dates departing Mar 7, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 8, 2027 · One way · Compare return dates departing Mar 8, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 8, 2027 · One way · Compare return dates departing Mar 8, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 8, 2027 – Mar 11, 2027 · 3 nights · Compare return dates departing Mar 8, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 8, 2027 – Mar 11, 2027 · 3 nights · Compare return dates departing Mar 8, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 8, 2027 – Mar 15, 2027 · 7 nights · Compare return dates departing Mar 8, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 8, 2027 – Mar 15, 2027 · 7 nights · Compare return dates departing Mar 8, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 9, 2027 · One way · Compare return dates departing Mar 9, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 9, 2027 · One way · Compare return dates departing Mar 9, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 9, 2027 – Mar 12, 2027 · 3 nights · Compare return dates departing Mar 9, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 9, 2027 – Mar 12, 2027 · 3 nights · Compare return dates departing Mar 9, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 9, 2027 – Mar 16, 2027 · 7 nights · Compare return dates departing Mar 9, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 9, 2027 – Mar 16, 2027 · 7 nights · Compare return dates departing Mar 9, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 10, 2027 · One way · Compare return dates departing Mar 10, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 10, 2027 · One way · Compare return dates departing Mar 10, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 10, 2027 – Mar 13, 2027 · 3 nights · Compare return dates departing Mar 10, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 10, 2027 – Mar 13, 2027 · 3 nights · Compare return dates departing Mar 10, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 10, 2027 – Mar 17, 2027 · 7 nights · Compare return dates departing Mar 10, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 10, 2027 – Mar 17, 2027 · 7 nights · Compare return dates departing Mar 10, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 11, 2027 · One way · Compare return dates departing Mar 11, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 11, 2027 · One way · Compare return dates departing Mar 11, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 11, 2027 – Mar 14, 2027 · 3 nights · Compare return dates departing Mar 11, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 11, 2027 – Mar 14, 2027 · 3 nights · Compare return dates departing Mar 11, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 11, 2027 – Mar 18, 2027 · 7 nights · Compare return dates departing Mar 11, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 11, 2027 – Mar 18, 2027 · 7 nights · Compare return dates departing Mar 11, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 12, 2027 · One way · Compare return dates departing Mar 12, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 12, 2027 · One way · Compare return dates departing Mar 12, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 12, 2027 – Mar 15, 2027 · 3 nights · Compare return dates departing Mar 12, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 12, 2027 – Mar 15, 2027 · 3 nights · Compare return dates departing Mar 12, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 12, 2027 – Mar 19, 2027 · 7 nights · Compare return dates departing Mar 12, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 12, 2027 – Mar 19, 2027 · 7 nights · Compare return dates departing Mar 12, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 13, 2027 · One way · Compare return dates departing Mar 13, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 13, 2027 · One way · Compare return dates departing Mar 13, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 13, 2027 – Mar 16, 2027 · 3 nights · Compare return dates departing Mar 13, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 13, 2027 – Mar 16, 2027 · 3 nights · Compare return dates departing Mar 13, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 13, 2027 – Mar 20, 2027 · 7 nights · Compare return dates departing Mar 13, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 13, 2027 – Mar 20, 2027 · 7 nights · Compare return dates departing Mar 13, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 14, 2027 · One way · Compare return dates departing Mar 14, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 14, 2027 · One way · Compare return dates departing Mar 14, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 14, 2027 – Mar 17, 2027 · 3 nights · Compare return dates departing Mar 14, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 14, 2027 – Mar 17, 2027 · 3 nights · Compare return dates departing Mar 14, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 14, 2027 – Mar 21, 2027 · 7 nights · Compare return dates departing Mar 14, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 14, 2027 – Mar 21, 2027 · 7 nights · Compare return dates departing Mar 14, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 15, 2027 · One way · Compare return dates departing Mar 15, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 15, 2027 · One way · Compare return dates departing Mar 15, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 15, 2027 – Mar 18, 2027 · 3 nights · Compare return dates departing Mar 15, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 15, 2027 – Mar 18, 2027 · 3 nights · Compare return dates departing Mar 15, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 15, 2027 – Mar 22, 2027 · 7 nights · Compare return dates departing Mar 15, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 15, 2027 – Mar 22, 2027 · 7 nights · Compare return dates departing Mar 15, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 16, 2027 · One way · Compare return dates departing Mar 16, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 16, 2027 · One way · Compare return dates departing Mar 16, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 16, 2027 – Mar 19, 2027 · 3 nights · Compare return dates departing Mar 16, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 16, 2027 – Mar 19, 2027 · 3 nights · Compare return dates departing Mar 16, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 16, 2027 – Mar 23, 2027 · 7 nights · Compare return dates departing Mar 16, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 16, 2027 – Mar 23, 2027 · 7 nights · Compare return dates departing Mar 16, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 17, 2027 · One way · Compare return dates departing Mar 17, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 17, 2027 · One way · Compare return dates departing Mar 17, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 17, 2027 – Mar 20, 2027 · 3 nights · Compare return dates departing Mar 17, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 17, 2027 – Mar 20, 2027 · 3 nights · Compare return dates departing Mar 17, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 17, 2027 – Mar 24, 2027 · 7 nights · Compare return dates departing Mar 17, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 17, 2027 – Mar 24, 2027 · 7 nights · Compare return dates departing Mar 17, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 18, 2027 · One way · Compare return dates departing Mar 18, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 18, 2027 · One way · Compare return dates departing Mar 18, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 18, 2027 – Mar 21, 2027 · 3 nights · Compare return dates departing Mar 18, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 18, 2027 – Mar 21, 2027 · 3 nights · Compare return dates departing Mar 18, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 18, 2027 – Mar 25, 2027 · 7 nights · Compare return dates departing Mar 18, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 18, 2027 – Mar 25, 2027 · 7 nights · Compare return dates departing Mar 18, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 19, 2027 · One way · Compare return dates departing Mar 19, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 19, 2027 · One way · Compare return dates departing Mar 19, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 19, 2027 – Mar 22, 2027 · 3 nights · Compare return dates departing Mar 19, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 19, 2027 – Mar 22, 2027 · 3 nights · Compare return dates departing Mar 19, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 19, 2027 – Mar 26, 2027 · 7 nights · Compare return dates departing Mar 19, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 19, 2027 – Mar 26, 2027 · 7 nights · Compare return dates departing Mar 19, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 20, 2027 · One way · Compare return dates departing Mar 20, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 20, 2027 · One way · Compare return dates departing Mar 20, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 20, 2027 – Mar 23, 2027 · 3 nights · Compare return dates departing Mar 20, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 20, 2027 – Mar 23, 2027 · 3 nights · Compare return dates departing Mar 20, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 20, 2027 – Mar 27, 2027 · 7 nights · Compare return dates departing Mar 20, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 20, 2027 – Mar 27, 2027 · 7 nights · Compare return dates departing Mar 20, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 21, 2027 · One way · Compare return dates departing Mar 21, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 21, 2027 · One way · Compare return dates departing Mar 21, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 21, 2027 – Mar 24, 2027 · 3 nights · Compare return dates departing Mar 21, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 21, 2027 – Mar 24, 2027 · 3 nights · Compare return dates departing Mar 21, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 21, 2027 – Mar 28, 2027 · 7 nights · Compare return dates departing Mar 21, 2027	Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 21, 2027 – Mar 28, 2027 · 7 nights · Compare return dates departing Mar 21, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $420.00
Mar 22, 2027 · One way · Compare return dates departing Mar 22, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 22, 2027 · One way · Compare return dates departing Mar 22, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 22, 2027 – Mar 25, 2027 · 3 nights · Compare return dates departing Mar 22, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 22, 2027 – Mar 25, 2027 · 3 nights · Compare return dates departing Mar 22, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 22, 2027 – Mar 29, 2027 · 7 nights · Compare return dates departing Mar 22, 2027	Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 22, 2027 – Mar 29, 2027 · 7 nights · Compare return dates departing Mar 22, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $420.00
Mar 23, 2027 · One way · Compare return dates departing Mar 23, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 23, 2027 · One way · Compare return dates departing Mar 23, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 23, 2027 – Mar 26, 2027 · 3 nights · Compare return dates departing Mar 23, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 23, 2027 – Mar 26, 2027 · 3 nights · Compare return dates departing Mar 23, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 23, 2027 – Mar 30, 2027 · 7 nights · Compare return dates departing Mar 23, 2027	Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 23, 2027 – Mar 30, 2027 · 7 nights · Compare return dates departing Mar 23, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $420.00
Mar 24, 2027 · One way · Compare return dates departing Mar 24, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 24, 2027 · One way · Compare return dates departing Mar 24, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 24, 2027 – Mar 27, 2027 · 3 nights · Compare return dates departing Mar 24, 2027	Alaska Airlines	Nonstop	Axel-exclusive $390.00
Mar 24, 2027 – Mar 27, 2027 · 3 nights · Compare return dates departing Mar 24, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 24, 2027 – Mar 31, 2027 · 7 nights · Compare return dates departing Mar 24, 2027	Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 24, 2027 – Mar 31, 2027 · 7 nights · Compare return dates departing Mar 24, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $420.00
Mar 25, 2027 · One way · Compare return dates departing Mar 25, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 25, 2027 · One way · Compare return dates departing Mar 25, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 25, 2027 – Mar 28, 2027 · 3 nights · Compare return dates departing Mar 25, 2027	Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 25, 2027 – Mar 28, 2027 · 3 nights · Compare return dates departing Mar 25, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $420.00
Mar 25, 2027 – Mar 29, 2027 · 4 nights · Compare return dates departing Mar 25, 2027	Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 25, 2027 – Mar 29, 2027 · 4 nights · Compare return dates departing Mar 25, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $420.00
Mar 25, 2027 – Apr 1, 2027 · 7 nights · Compare return dates departing Mar 25, 2027	Alaska Airlines	Nonstop	Axel-exclusive $373.50
Mar 25, 2027 – Apr 1, 2027 · 7 nights · Compare return dates departing Mar 25, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $388.50
Mar 26, 2027 · One way · Compare return dates departing Mar 26, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 26, 2027 · One way · Compare return dates departing Mar 26, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 26, 2027 – Mar 29, 2027 · 3 nights · Compare return dates departing Mar 26, 2027	Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 26, 2027 – Mar 29, 2027 · 3 nights · Compare return dates departing Mar 26, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $420.00
Mar 26, 2027 – Apr 2, 2027 · 7 nights · Compare return dates departing Mar 26, 2027	Alaska Airlines	Nonstop	Axel-exclusive $373.50
Mar 26, 2027 – Apr 2, 2027 · 7 nights · Compare return dates departing Mar 26, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $388.50
Mar 27, 2027 · One way · Compare return dates departing Mar 27, 2027	Alaska Airlines	Nonstop	Axel-exclusive $200.00
Mar 27, 2027 · One way · Compare return dates departing Mar 27, 2027	Delta Air Lines	Nonstop	Axel-exclusive $215.00
Mar 27, 2027 – Mar 30, 2027 · 3 nights · Compare return dates departing Mar 27, 2027	Alaska Airlines	Nonstop	Axel-exclusive $405.00
Mar 27, 2027 – Mar 30, 2027 · 3 nights · Compare return dates departing Mar 27, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $420.00
Mar 27, 2027 – Apr 3, 2027 · 7 nights · Compare return dates departing Mar 27, 2027	Alaska Airlines	Nonstop	Axel-exclusive $373.50
Mar 27, 2027 – Apr 3, 2027 · 7 nights · Compare return dates departing Mar 27, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $388.50
Mar 28, 2027 · One way · Compare return dates departing Mar 28, 2027	Alaska Airlines	Nonstop	Axel-exclusive $220.00
Mar 28, 2027 · One way · Compare return dates departing Mar 28, 2027	Delta Air Lines	Nonstop	Axel-exclusive $225.00
Mar 28, 2027 – Mar 31, 2027 · 3 nights · Compare return dates departing Mar 28, 2027	Alaska Airlines	Nonstop	Axel-exclusive $420.00
Mar 28, 2027 – Mar 31, 2027 · 3 nights · Compare return dates departing Mar 28, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $430.00
Mar 28, 2027 – Apr 4, 2027 · 7 nights · Compare return dates departing Mar 28, 2027	Alaska Airlines	Nonstop	Axel-exclusive $388.50
Mar 28, 2027 – Apr 4, 2027 · 7 nights · Compare return dates departing Mar 28, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $398.50
Mar 29, 2027 · One way · Compare return dates departing Mar 29, 2027	Alaska Airlines	Nonstop	Axel-exclusive $220.00
Mar 29, 2027 · One way · Compare return dates departing Mar 29, 2027	Delta Air Lines	Nonstop	Axel-exclusive $225.00
Mar 29, 2027 – Apr 1, 2027 · 3 nights · Compare return dates departing Mar 29, 2027	Alaska Airlines	Nonstop	Axel-exclusive $388.50
Mar 29, 2027 – Apr 1, 2027 · 3 nights · Compare return dates departing Mar 29, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $398.50
Mar 29, 2027 – Apr 5, 2027 · 7 nights · Compare return dates departing Mar 29, 2027	Alaska Airlines	Nonstop	Axel-exclusive $388.50
Mar 29, 2027 – Apr 5, 2027 · 7 nights · Compare return dates departing Mar 29, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $398.50
Mar 30, 2027 · One way · Compare return dates departing Mar 30, 2027	Alaska Airlines	Nonstop	Axel-exclusive $220.00
Mar 30, 2027 · One way · Compare return dates departing Mar 30, 2027	Delta Air Lines	Nonstop	Axel-exclusive $225.00
Mar 30, 2027 – Apr 2, 2027 · 3 nights · Compare return dates departing Mar 30, 2027	Alaska Airlines	Nonstop	Axel-exclusive $388.50
Mar 30, 2027 – Apr 2, 2027 · 3 nights · Compare return dates departing Mar 30, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $398.50
Mar 30, 2027 – Apr 6, 2027 · 7 nights · Compare return dates departing Mar 30, 2027	Alaska Airlines	Nonstop	Axel-exclusive $388.50
Mar 30, 2027 – Apr 6, 2027 · 7 nights · Compare return dates departing Mar 30, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $398.50
Mar 31, 2027 · One way · Compare return dates departing Mar 31, 2027	Alaska Airlines	Nonstop	Axel-exclusive $220.00
Mar 31, 2027 · One way · Compare return dates departing Mar 31, 2027	Delta Air Lines	Nonstop	Axel-exclusive $225.00
Mar 31, 2027 – Apr 3, 2027 · 3 nights · Compare return dates departing Mar 31, 2027	Alaska Airlines	Nonstop	Axel-exclusive $388.50
Mar 31, 2027 – Apr 3, 2027 · 3 nights · Compare return dates departing Mar 31, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $398.50
Mar 31, 2027 – Apr 7, 2027 · 7 nights · Compare return dates departing Mar 31, 2027	Alaska Airlines	Nonstop	Axel-exclusive $388.50
Mar 31, 2027 – Apr 7, 2027 · 7 nights · Compare return dates departing Mar 31, 2027	Delta Air Lines / Alaska Airlines	Nonstop	Axel-exclusive $398.50

Route overview: Seattle to Sun Valley (SUN) flight deals

2027-03-01 · one way · Axel-exclusive $200.00

Alaska Airlines AS2202: SEA 2027-03-01 08:35:00 → SUN 2027-03-01 11:09:00; nonstop; 94 minutes. Local airport times.

2027-03-01 · one way · Axel-exclusive $215.00

Delta Air Lines DL4009: SEA 2027-03-01 10:05:00 → SUN 2027-03-01 13:00:00; nonstop; 115 minutes. Local airport times.

2027-03-01 → 2027-03-04 · Axel-exclusive $390.00

Alaska Airlines AS2202: SEA 2027-03-01 08:35:00 → SUN 2027-03-01 11:09:00; nonstop; 94 minutes. Local airport times.
Alaska Airlines AS2252: SUN 2027-03-04 19:59:00 → SEA 2027-03-04 20:53:00; nonstop; 114 minutes. Local airport times.

2027-03-01 → 2027-03-04 · Axel-exclusive $405.00

Delta Air Lines DL4009: SEA 2027-03-01 10:05:00 → SUN 2027-03-01 13:00:00; nonstop; 115 minutes. Local airport times.
Alaska Airlines AS2252: SUN 2027-03-04 19:59:00 → SEA 2027-03-04 20:53:00; nonstop; 114 minutes. Local airport times.

2027-03-04 → 2027-03-07 · Axel-exclusive $390.00

Alaska Airlines AS2202: SEA 2027-03-04 08:35:00 → SUN 2027-03-04 11:09:00; nonstop; 94 minutes. Local airport times.
Alaska Airlines AS2252: SUN 2027-03-07 19:59:00 → SEA 2027-03-07 20:53:00; nonstop; 114 minutes. Local airport times.

2027-03-04 → 2027-03-07 · Axel-exclusive $405.00

Delta Air Lines DL4009: SEA 2027-03-04 10:05:00 → SUN 2027-03-04 13:00:00; nonstop; 115 minutes. Local airport times.
Alaska Airlines AS2252: SUN 2027-03-07 19:59:00 → SEA 2027-03-07 20:53:00; nonstop; 114 minutes. Local airport times.

2027-03-07 → 2027-03-10 · Axel-exclusive $390.00

Alaska Airlines AS2199: SEA 2027-03-07 08:20:00 → SUN 2027-03-07 10:56:00; nonstop; 96 minutes. Local airport times.
Alaska Airlines AS2203: SUN 2027-03-10 11:33:00 → SEA 2027-03-10 12:31:00; nonstop; 118 minutes. Local airport times.

2027-03-07 → 2027-03-10 · Axel-exclusive $405.00

Delta Air Lines DL4009: SEA 2027-03-07 10:05:00 → SUN 2027-03-07 13:00:00; nonstop; 115 minutes. Local airport times.
Alaska Airlines AS2203: SUN 2027-03-10 11:33:00 → SEA 2027-03-10 12:31:00; nonstop; 118 minutes. Local airport times.

2027-03-10 → 2027-03-13 · Axel-exclusive $390.00

Alaska Airlines AS2202: SEA 2027-03-10 08:35:00 → SUN 2027-03-10 11:09:00; nonstop; 94 minutes. Local airport times.
Alaska Airlines AS2272: SUN 2027-03-13 11:38:00 → SEA 2027-03-13 12:34:00; nonstop; 116 minutes. Local airport times.

2027-03-10 → 2027-03-13 · Axel-exclusive $405.00

Delta Air Lines DL4009: SEA 2027-03-10 10:05:00 → SUN 2027-03-10 13:00:00; nonstop; 115 minutes. Local airport times.
Alaska Airlines AS2272: SUN 2027-03-13 11:38:00 → SEA 2027-03-13 12:34:00; nonstop; 116 minutes. Local airport times.

2027-03-13 → 2027-03-16 · Axel-exclusive $390.00

Alaska Airlines AS2202: SEA 2027-03-13 08:35:00 → SUN 2027-03-13 11:09:00; nonstop; 94 minutes. Local airport times.
Alaska Airlines AS2252: SUN 2027-03-16 19:59:00 → SEA 2027-03-16 20:53:00; nonstop; 114 minutes. Local airport times.

2027-03-13 → 2027-03-16 · Axel-exclusive $405.00

Delta Air Lines DL4009: SEA 2027-03-13 10:05:00 → SUN 2027-03-13 13:00:00; nonstop; 115 minutes. Local airport times.
Alaska Airlines AS2252: SUN 2027-03-16 19:59:00 → SEA 2027-03-16 20:53:00; nonstop; 114 minutes. Local airport times.

2027-03-16 → 2027-03-23 · Axel-exclusive $390.00

Alaska Airlines AS2202: SEA 2027-03-16 08:35:00 → SUN 2027-03-16 11:09:00; nonstop; 94 minutes. Local airport times.
Alaska Airlines AS2252: SUN 2027-03-23 19:59:00 → SEA 2027-03-23 20:53:00; nonstop; 114 minutes. Local airport times.

2027-03-16 → 2027-03-23 · Axel-exclusive $405.00

Delta Air Lines DL4009: SEA 2027-03-16 10:05:00 → SUN 2027-03-16 13:00:00; nonstop; 115 minutes. Local airport times.
Alaska Airlines AS2252: SUN 2027-03-23 19:59:00 → SEA 2027-03-23 20:53:00; nonstop; 114 minutes. Local airport times.

2027-03-19 → 2027-03-26 · Axel-exclusive $390.00

Alaska Airlines AS2202: SEA 2027-03-19 08:35:00 → SUN 2027-03-19 11:09:00; nonstop; 94 minutes. Local airport times.
Alaska Airlines AS2252: SUN 2027-03-26 19:59:00 → SEA 2027-03-26 20:53:00; nonstop; 114 minutes. Local airport times.

2027-03-19 → 2027-03-26 · Axel-exclusive $405.00

Delta Air Lines DL4009: SEA 2027-03-19 10:05:00 → SUN 2027-03-19 13:00:00; nonstop; 115 minutes. Local airport times.
Alaska Airlines AS2252: SUN 2027-03-26 19:59:00 → SEA 2027-03-26 20:53:00; nonstop; 114 minutes. Local airport times.

2027-03-22 → 2027-03-29 · Axel-exclusive $405.00

Alaska Airlines AS2202: SEA 2027-03-22 08:35:00 → SUN 2027-03-22 11:09:00; nonstop; 94 minutes. Local airport times.
Alaska Airlines AS2252: SUN 2027-03-29 19:59:00 → SEA 2027-03-29 20:53:00; nonstop; 114 minutes. Local airport times.

2027-03-22 → 2027-03-29 · Axel-exclusive $420.00

Delta Air Lines DL4009: SEA 2027-03-22 10:05:00 → SUN 2027-03-22 13:00:00; nonstop; 115 minutes. Local airport times.
Alaska Airlines AS2252: SUN 2027-03-29 19:59:00 → SEA 2027-03-29 20:53:00; nonstop; 114 minutes. Local airport times.

2027-03-25 → 2027-03-29 · Axel-exclusive $405.00

Alaska Airlines AS2202: SEA 2027-03-25 08:35:00 → SUN 2027-03-25 11:09:00; nonstop; 94 minutes. Local airport times.
Alaska Airlines AS2252: SUN 2027-03-29 19:59:00 → SEA 2027-03-29 20:53:00; nonstop; 114 minutes. Local airport times.

2027-03-25 → 2027-03-29 · Axel-exclusive $420.00

Delta Air Lines DL4009: SEA 2027-03-25 10:05:00 → SUN 2027-03-25 13:00:00; nonstop; 115 minutes. Local airport times.
Alaska Airlines AS2252: SUN 2027-03-29 19:59:00 → SEA 2027-03-29 20:53:00; nonstop; 114 minutes. Local airport times.

2027-03-28 → 2027-03-31 · Axel-exclusive $420.00

Alaska Airlines AS2199: SEA 2027-03-28 08:20:00 → SUN 2027-03-28 10:56:00; nonstop; 96 minutes. Local airport times.
Alaska Airlines AS2203: SUN 2027-03-31 11:33:00 → SEA 2027-03-31 12:31:00; nonstop; 118 minutes. Local airport times.

2027-03-28 → 2027-03-31 · Axel-exclusive $430.00

Delta Air Lines DL4009: SEA 2027-03-28 10:05:00 → SUN 2027-03-28 13:00:00; nonstop; 115 minutes. Local airport times.
Alaska Airlines AS2203: SUN 2027-03-31 11:33:00 → SEA 2027-03-31 12:31:00; nonstop; 118 minutes. Local airport times.

2027-03-31 → 2027-04-07 · Axel-exclusive $388.50

Alaska Airlines AS2202: SEA 2027-03-31 08:35:00 → SUN 2027-03-31 11:09:00; nonstop; 94 minutes. Local airport times.
Alaska Airlines AS2203: SUN 2027-04-07 11:33:00 → SEA 2027-04-07 12:31:00; nonstop; 118 minutes. Local airport times.

2027-03-31 → 2027-04-07 · Axel-exclusive $398.50

Delta Air Lines DL4009: SEA 2027-03-31 10:05:00 → SUN 2027-03-31 13:00:00; nonstop; 115 minutes. Local airport times.
Alaska Airlines AS2203: SUN 2027-04-07 11:33:00 → SEA 2027-04-07 12:31:00; nonstop; 118 minutes. Local airport times.

More dates for this route

Seattle to Sun Valley nonstop flights, airlines and connections

Yes, Alaska and Delta fly it nonstop. In the 2 departure dates we searched from Dec 24 to Jan 12, a nonstop from Seattle flew on 2: Tuesdays 1 of 1 and Thursdays 1 of 1. The nonstops were Alaska (AS2199, AS2253, AS2202, AS2279) and Delta (DL4009). These are the airlines seen in the saved flights.

Alaska: Nonstop to Sun Valley
Delta: Nonstop to Sun Valley

Departure date	Itineraries searched	Nonstop	Airlines and flights
Thu Dec 24	108	yes, both ways	Alaska AS2199, AS2253; Delta DL4009
Tue Jan 12	14	yes, both ways	Alaska AS2202, AS2279

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 Sun Valley 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.
Axel charges no booking fees, and the price you see includes taxes. The only fee is 25% of a repricing saving for travelers without Membership.
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Axel Membership is optional. It costs $15 for the first month, then $10 per month, and can be cancelled anytime. Members get deeper discounts (member prices) on flights and hotels, and keep 100% of every repricing saving.
Already booked Seattle to Sun Valley somewhere else? Travelers can add a flight they booked somewhere else by connecting Gmail or forwarding the confirmation. Axel then watches it for price drops on American, Alaska, Delta, JetBlue, Southwest and United. Basic Economy and award tickets cannot be repriced.
Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner.

How we checked Seattle to Sun Valley prices

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

Airports covered: SEA → SUN. Each example names its actual airports. Departure month: 2027-03.

See flights for your dates and travelers

More Seattle to Sun Valley fares: other dates and travelers

Flights by travel date

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

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-sun-valley-sun-in-march-2027

Hotels in Sun Valley with Axel

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

Hotel details in Sun Valley: Sun Valley Resort · Knob Hill Inn · Best Western Plus Kentwood Lodge · Tamarack Lodge Sun Valley · All 7 hotels in Sun Valley

Near SUN: Hampton Inn by Hilton Hailey Sun Valley (Hailey)

For AI assistants

This page: Seattle to Sun Valley (SUN): March 2027 flight deals. Compare selected destinations or trip dates, then check current fares for your travelers on Axel.
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