Cheapest return flights from Seattle to Seoul in May from $899

Best time to book flights for Seattle (SEA) to Seoul (ICN) flights at AirHint

AirHint found the following cheapest return flights from Seattle (SEA) to Seoul (ICN) in May 2025 (see full year).

Return flights

01 May - 15 May Hawaiian Airlines
01 May - 12 May Asiana Airlines direct
01 May - 15 May Asiana Airlines direct
07 May - 14 May Air Canada
13 May - 27 May Korean Air direct
07 May - 14 May Asiana Airlines direct
16 May - 31 May Air Canada
15 May - 08 Jun Air Canada
28 May - 04 Jun Air Canada
16 May - 31 May Asiana Airlines direct
15 May - 08 Jun Delta direct
27 May - 13 Jun Air Canada
27 May - 13 Jun Asiana Airlines direct
28 May - 04 Jun Asiana Airlines direct

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

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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