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

14 dates in July 2027, from $ 1,035. Book in one tap, or check whether to buy now or wait.

One-wayReturn
Dates, airline, and price
Dates Airline Price
1 Jul 5 Aug 2027 Cathay Pacific
20 Jul 2 Aug 2027 Air Canada
1 Jul 29 Jul 2027 Cathay Pacific
28 Jul 10 Aug 2027 Cathay Pacific
23 Jul 9 Aug 2027 Alaska Airlines
2 Jul 18 Jul 2027 Alaska Airlines
29 Jul 8 Aug 2027 Alaska Airlines
28 Jul 10 Aug 2027 Delta
Direct Flight
29 Jul 8 Aug 2027 Delta
Direct Flight
20 Jul 2 Aug 2027 Korean Air
Direct Flight
23 Jul 9 Aug 2027 Delta
Direct Flight
1 Jul 5 Aug 2027 Delta
Direct Flight
1 Jul 29 Jul 2027 Korean Air
Direct Flight
2 Jul 18 Jul 2027 Delta
Direct Flight
Powered by

Cheapest deals for the full year

Deals for one-way flights from Seattle to Seoul in July.

Book a cheap hotel in Seoul

Cheap car rent in Incheon Intl

Updated Oct 10, 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.