Cheapest return flights from Seattle to Seoul in May from $785

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

AirHint found the following cheapest return flights from Seattle (SEA) to Seoul (ICN) in May 2025 (see full year).

Return flights

21 May - 28 May Alaska Airlines
13 May - 16 May Alaska Airlines
25 May - 30 May Alaska Airlines
08 May - 14 May Air Canada
12 May - 16 May Alaska Airlines
15 May - 18 May Alaska Airlines
05 May - 12 May Alaska Airlines
04 May - 17 May Alaska Airlines
07 May - 14 May Alaska Airlines
17 May - 23 May Alaska Airlines
30 May - 07 Jun Alaska Airlines
28 May - 10 Jun Alaska Airlines
23 May - 08 Jun Alaska Airlines
12 May - 22 Jun Alaska Airlines
25 May - 18 Jun Alaska Airlines
13 May - 18 Jun Air Canada
20 May - 03 Jun Air Canada
29 May - 17 Jun Turkish Airlines
22 May - 10 Jun Air Canada
13 May - 18 Jun Delta direct

Also check the deals for one-way flights from Seattle to Seoul in May.

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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