Cheapest one-way flights from Seattle to Seoul in January from $446

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

One-Way flights

08 Jan Air Canada
30 Jan Asiana Airlines direct
08 Jan Hawaiian Airlines direct
24 Jan Delta direct
01 Jan Delta direct
05 Jan Asiana Airlines direct
04 Jan Delta direct
03 Jan Delta direct
02 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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