Cheapest one-way flights from Seattle to Seoul in March from $442

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 March 2025 (see full year).

One-Way flights

18 Mar Frontier Airlines
22 Mar Frontier Airlines
09 Mar Hawaiian Airlines
23 Mar Frontier Airlines
13 Mar Spirit Airlines
31 Mar Air Canada
11 Mar Air Canada
30 Mar Air Canada
22 Mar Asiana Airlines direct
13 Mar Korean Air direct

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

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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