Cheapest return flights from Seattle to Seoul in March from $669

AirHint found the following cheapest return flights from Seattle (SEA) to Seoul (ICN) in March 2026 (see full year).

Return flights

05 Mar - 18 Mar Hainan Airlines
12 Mar - 18 Mar Hainan Airlines
19 Mar - 16 Apr Hainan Airlines
11 Mar - 18 Mar Air Canada
12 Mar - 19 Mar Hainan Airlines
24 Mar - 31 Mar Air Canada
17 Mar - 24 Mar Air Canada
23 Mar - 31 Mar Air Canada
26 Mar - 07 Apr Hainan Airlines
08 Mar - 15 Mar Asiana Airlines direct
19 Mar - 02 Apr Hainan Airlines
24 Mar - 28 Apr Korean Air direct
21 Mar - 21 Apr Air Canada
18 Mar - 26 Mar Korean Air direct
11 Mar - 18 Mar Korean Air direct
26 Mar - 07 Apr Korean Air direct
19 Mar - 16 Apr Korean Air direct
19 Mar - 02 Apr Asiana Airlines direct
22 Mar - 03 Apr Korean Air direct
31 Mar - 09 Apr Asiana Airlines direct

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

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 Seoul

Cheap car rent in Seoul

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