Cheapest return flights from Seattle to Seoul in October from $974

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

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

Return flights

21 Oct - 24 Oct Air Canada
14 Oct - 28 Oct China Airlines
08 Oct - 21 Oct American Airlines
08 Oct - 15 Oct American Airlines
21 Oct - 24 Oct Asiana Airlines direct
14 Oct - 28 Oct Delta direct
08 Oct - 21 Oct Korean Air direct
08 Oct - 15 Oct Korean Air direct

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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