Cheapest one-way flights from Seattle to Seoul in April from 441€

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 April 2025 (see full year).

One-Way flights

26 Apr Frontier Airlines
12 Apr Frontier Airlines
03 Apr Alaska Airlines
21 Apr Hawaiian Airlines
19 Apr Air Canada
02 Apr Air Canada
10 Apr Air Canada
04 Apr Air Canada
06 Apr Air Canada
05 Apr Air Canada

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

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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