Cheapest one-way flights from Seattle to Seoul in October from 518€

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

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

One-Way flights

14 Oct Air Canada
11 Oct Alaska Airlines
03 Oct Air Canada
24 Oct Air Canada
10 Oct Alaska Airlines
12 Oct Air Canada
08 Oct EVA Air
03 Oct Asiana Airlines direct
14 Oct Korean Air direct
08 Oct Korean Air direct

Also check the deals for return 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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