Cheapest one-way flights from Seoul to Seattle in April from $531

AirHint found the following cheapest one-way flights from Seoul (ICN) to Seattle (SEA) in April 2026 (see full year).

One-Way flights

18 Apr Air Canada
18 Apr Alaska Airlines direct

Also check the deals for return flights from Seoul to Seattle in April.

Powered by

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 Seattle

Cheap car rent in Seattle

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