Nonstop flights from Seattle to Seoul

4 airlines fly this route, with up to 4 flights a day.

SEASeattle-Tacoma International

5,205 mi · 25 flights a week

ICNSeoul Incheon International

SEAICN

When they leave

Seattle time

12:10a2:05pFirst departure 12:10 AM, last 2:05 PM

One overnight flight at 12:10 AM, then three in the afternoon, 1:05 PM to 2:05 PM.

Every flight

Earliest first

12:10 AM→4:00 AMAsiana AirlinesBoeing 777Mon, Tue, Wed, Fri, Sat
1:05 PM→4:50 PMDelta Air LinesAirbus A350Daily
1:20 PM→4:40 PMKorean AirBoeing 787-10Daily
2:05 PM→5:30 PMAlaska AirlinesBoeing 787Mon, Wed, Thu, Fri, Sat, Sun

Schedules last checked Sep 18, 2026. Times are local.

Flying from Seattle to Seoul

Delta Air Lines flies daily on the Airbus A350. Korean Air flies daily on the Boeing 787-10. Alaska Airlines flies 6 times a week on the Boeing 787. Asiana Airlines flies 5 times a week on the Boeing 777.

There are 3 or 4 flights every day of the week. The first arrival in Seoul is at 4:00 AM and the last at 5:30 PM. The flight covers 5,205 miles.

Flying back, Seoul to Seattle has 25 nonstop flights a week.

Return flights

Seoul to SeattleView

Find the cheapest day to fly from Seattle to Seoul.

Schedules as of Oct 9, 2026.