Cheapest return flights from Seattle to Seoul in May from 725€

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

Return flights

12 May - 19 May Korean Air direct
02 May - 23 May Korean Air direct
09 May - 17 May Asiana Airlines direct
02 May - 09 May Korean Air direct
30 May - 08 Jun Air Canada
07 May - 19 May Korean Air
11 May - 19 May Asiana Airlines direct
07 May - 19 May Delta direct
01 May - 09 May Delta direct
23 May - 10 Jun Air Canada
22 May - 10 Jun Air Canada
25 May - 04 Jun Air Canada
28 May - 15 Jun Air Canada
16 May - 01 Jun ANA
16 May - 06 Jun Delta
30 May - 08 Jun Asiana Airlines direct
23 May - 10 Jun Delta direct
22 May - 10 Jun Delta direct

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

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