Cheapest return flights from Seattle (SEA) to Seoul (ICN), June

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
04 Jun 07 Jun Harbour Air
01 Jun 09 Jun Alaska Airlines
09 Jun 25 Jun Harbour Air
01 Jun 22 Jun WestJet
14 Jun 20 Jun Alaska Airlines
02 Jun 05 Jun Harbour Air
02 Jun 05 Jun Asiana Airlines
Direct Flight
17 Jun 24 Jun WestJet
18 Jun 21 Jun Alaska Airlines
18 Jun 05 Jul Alaska Airlines
01 Jun 14 Jul WestJet
25 Jun 09 Jul Alaska Airlines
10 Jun 13 Jun WestJet
07 Jun 04 Jul WestJet
19 Jun 05 Jul Alaska Airlines
26 Jun 12 Jul Alaska Airlines
28 Jun 26 Jul Korean Air
Direct Flight
26 Jun 12 Jul Asiana Airlines
Direct Flight
20 Jun 03 Jul WestJet
28 Jun 05 Jul Korean Air
Direct Flight
Powered by

deals for one-way flights from Seattle to Seoul in June.

Book a cheap hotel in Seoul

Cheap car rent in Incheon Intl

Updated May 21, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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