AirHint found the following cheapest return flights from Seattle (SEA) to Seoul (GMP) in February 2026 (see full year).
Return flights
| 02 Feb - 01 Mar | Japan Airlines | ||
| 06 Feb - 09 Feb | Japan Airlines | ||
| 11 Feb - 25 Feb | ANA | ||
| 17 Feb - 10 Mar | ANA | ||
| 15 Feb - 22 Feb | Japan Airlines | ||
| 28 Feb - 21 Mar | ANA | ||
| 13 Feb - 22 Feb | EVA Air |
Also check the deals for one-way flights from Seattle to Seoul in February.
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