Cheapest one-way flights from Seattle to Seoul in May from 514€

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

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

One-Way flights

20 May WestJet
08 May WestJet
14 May WestJet
01 May Asiana Airlines direct
08 May Asiana Airlines direct
05 May Asiana Airlines direct
07 May Asiana Airlines direct
09 May Asiana Airlines direct
06 May Delta direct
14 May Delta direct

Also check the deals for return 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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