Cheapest return flights from Seattle to Seoul in May from $944

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

Return flights

01 May - 16 May EVA Air
08 May - 16 May EVA Air
04 May - 11 May China Airlines
19 May - 30 May EVA Air
06 May - 17 May Cathay Pacific
18 May - 05 Jun EVA Air
20 May - 31 May Japan Airlines
20 May - 02 Jun Japan Airlines
20 May - 03 Jun Japan Airlines
20 May - 04 Jun Japan Airlines
13 May - 21 May Japan Airlines
12 May - 21 May Japan Airlines
16 May - 25 May Cathay Pacific
27 May - 04 Jun Japan Airlines
20 May - 30 May Japan Airlines
21 May - 04 Jun Japan Airlines
20 May - 30 Jun Air Canada
27 May - 05 Jun Japan Airlines
25 May - 02 Jun Japan Airlines
26 May - 03 Jun Japan Airlines

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

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