Cheapest return flights from Seoul to Seattle in April from 486€

AirHint found the following cheapest return flights from Seoul (ICN) to Seattle (SEA) in April 2026 (see full year).

Return flights

16 Apr - 23 Apr United
16 Apr - 18 Apr United
02 Apr - 06 Apr United
16 Apr - 19 Apr United
02 Apr - 05 Apr United
23 Apr - 28 Apr United
02 Apr - 08 Apr United
02 Apr - 11 Apr United
23 Apr - 01 May United
02 Apr - 09 Apr United
21 Apr - 25 Apr United
23 Apr - 09 May United
27 Apr - 01 May United
30 Apr - 02 May United
30 Apr - 04 May United
30 Apr - 05 May United
15 Apr - 01 May United
22 Apr - 02 May United
24 Apr - 01 May United
24 Apr - 02 May United

Also check the deals for one-way flights from Seoul to Seattle in April.

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