Cheapest return flights from Seattle to Seoul in April from $913

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

Return flights

30 Apr - 30 May EVA Air
24 Apr - 02 May EVA Air
06 Apr - 15 Apr Japan Airlines
13 Apr - 26 Apr Cathay Pacific
11 Apr - 22 Apr Hainan Airlines
18 Apr - 27 Apr Japan Airlines
19 Apr - 10 May ANA
05 Apr - 15 Apr Japan Airlines
20 Apr - 04 May ANA
19 Apr - 03 May ANA
13 Apr - 11 May ANA
01 Apr - 29 May Japan Airlines
22 Apr - 01 May ANA
02 Apr - 13 Apr Cathay Pacific
06 Apr - 04 May ANA
26 Apr - 03 May ANA
03 Apr - 15 Apr Japan Airlines
01 Apr - 21 Apr ANA
10 Apr - 12 Apr ANA
04 Apr - 17 Apr ANA

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

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