Cheapest return flights from Seattle to Seoul in March from $683

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

Return flights

19 Mar - 25 Mar Hainan Airlines
05 Mar - 22 Mar Hainan Airlines
05 Mar - 17 Mar Hainan Airlines
02 Mar - 10 Mar Air Canada
02 Mar - 09 Mar Air Canada
05 Mar - 12 Mar Hainan Airlines
04 Mar - 16 Mar Air Canada
22 Mar - 08 Apr Air Canada
15 Mar - 22 Mar Air Canada
19 Mar - 30 Mar Hainan Airlines
09 Mar - 16 Apr Air Canada
02 Mar - 15 Apr Asiana Airlines
19 Mar - 29 Mar Hainan Airlines
22 Mar - 06 Apr Asiana Airlines direct
22 Mar - 14 Apr Asiana Airlines direct
02 Mar - 15 Apr Delta direct
28 Mar - 07 Apr Air Canada
12 Mar - 19 Apr Air Canada
28 Mar - 04 Apr Air Canada
21 Mar - 04 Apr Air Canada

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

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