Cheapest one-way flights from Seattle to Seoul in January from 376€

AirHint found the following cheapest one-way flights from Seattle (SEA) to Seoul (ICN) in January 2026 (see full year).

One-Way flights

21 Jan Air Canada
21 Jan Asiana Airlines direct
24 Jan Asiana Airlines direct
23 Jan Korean Air direct
06 Jan Delta
10 Jan Air Canada
09 Jan Air Canada
09 Jan Korean Air direct
03 Jan Air Canada
06 Jan Delta direct

Also check the deals for return flights from Seattle to Seoul in January.

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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