Cheapest return flights from Seattle to Seoul in May from $814

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

07 May - 21 May WestJet
07 May - 22 May WestJet
01 May - 29 May WestJet
15 May - 01 Jun WestJet
01 May - 22 May WestJet
06 May - 22 May Air Canada
12 May - 27 May Air Canada
16 May - 25 May WestJet
01 May - 08 May WestJet
04 May - 11 May WestJet
26 May - 08 Jun Air Canada
13 May - 22 May WestJet
27 May - 11 Jun Air Canada
25 May - 08 Jun WestJet
24 May - 07 Jun WestJet
20 May - 30 Jun Air Canada
15 May - 01 Jun Asiana Airlines direct
20 May - 30 Jun Delta direct
26 May - 08 Jun Delta direct
27 May - 11 Jun Delta direct

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

Skyscanner

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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