Cheapest one-way flights from Seattle to Seoul in October from 393€

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

One-Way flights

02 Oct Air Canada
20 Oct Air Canada
03 Oct Air Canada
16 Oct WestJet
13 Oct China Airlines
12 Oct Asiana Airlines direct
13 Oct Asiana Airlines direct
10 Oct Asiana Airlines direct
03 Oct Asiana Airlines direct
02 Oct Asiana Airlines 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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Feel free to contact us with any feedback or request another flight research.