Our cheapest offers for flights from Seattle Tacoma to South Korea

Here you can compare cheap flights from Seattle Tacoma (SEA) to South Korea for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to South Korea. Prices and availability may change at any time.

Flights from Seattle-Tacoma (SEA) to Seoul Incheon (ICN)

	Outbound	Return	Airlines	Baggage	Price
Best option Seattle-Tacoma Seoul Incheon	Outbound 04/26/25 direct KE0042 11h 40min	Return 05/23/25 direct KE5019 10h 15min	Korean Air	?	$965
Seattle-Tacoma Seoul Incheon	Outbound 04/26/25 direct KE0042 11h 40min	Return 05/23/25 direct KE5019 10h 15min	Korean Air		$986
Seattle-Tacoma Seoul Incheon	Outbound 04/26/25 1 Stopover (LAS) KE3049, KE0006 22h 05min	Return 05/23/25 direct KE5019 10h 15min	Korean Air	?	$987