Cheapest return flights from Seattle to Seoul in May from 780€

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

Return flights

04 May - 12 May Asiana Airlines
01 May - 26 May Asiana Airlines direct
06 May - 26 May Asiana Airlines direct
06 May - 28 May Asiana Airlines direct
04 May - 15 May Korean Air direct
08 May - 22 May Korean Air
11 May - 11 Jun Air Canada
11 May - 21 May Korean Air direct
10 May - 19 May Korean Air
08 May - 18 May Korean Air
01 May - 29 May Korean Air direct
12 May - 12 Jun Air Canada
11 May - 11 Jun Delta direct
30 May - 14 Jun WestJet
25 May - 04 Jun Alaska Airlines
31 May - 14 Jun WestJet
22 May - 12 Jun WestJet
12 May - 12 Jun Asiana Airlines direct
25 May - 04 Jun Asiana Airlines direct
31 May - 14 Jun Delta direct

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

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