Cheapest return flights from Seattle to Seoul in October from $712

AirHint found the following cheapest return flights from Seattle (SEA) to Seoul (ICN) in October 2025 (see full year).

Return flights

02 Oct - 20 Nov Alaska Airlines
01 Oct - 15 Oct Air Canada
28 Oct - 13 Nov Air Canada
23 Oct - 09 Nov Air Canada
22 Oct - 27 Oct Air Canada
22 Oct - 02 Nov Alaska Airlines
02 Oct - 11 Oct Air Canada
06 Oct - 14 Oct Air Canada
02 Oct - 14 Oct WestJet
23 Oct - 08 Nov Alaska Airlines
23 Oct - 02 Nov WestJet
01 Oct - 18 Oct Air Canada
20 Oct - 27 Oct Air Canada
31 Oct - 11 Nov Air Canada
19 Oct - 25 Oct Air Canada
13 Oct - 27 Oct Air Canada
19 Oct - 02 Nov Air Canada
27 Oct - 29 Oct Air Canada
30 Oct - 30 Nov Air Canada
22 Oct - 09 Nov Air Canada

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

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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