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Flight time from Seattle to Seoul

Estimated duration, distance and time difference for the BFI → ICN route.

How long is the flight from Seattle to Seoul?

The direct flight from Seattle to Seoul takes about 10h 21m, covering roughly 8,370 km. This is an average nonstop estimate; flights with a stop take longer depending on the layover.

Flights from Seattle to Seoul — compare on KayakSearch and comparison are free and run on Kayak · we earn a commission at no extra cost to you
Flight duration
10h 21m
Distance
8,370 km
Time difference
+17h
Seattle
BFI
UTC-8
10h 21m
Seoul
ICN
UTC+9

If you depart at…

Departure (Seattle)Arrival (Seoul)
6:00 AM9:21 AM (+1 day)
9:00 AM12:21 PM (+1 day)
12:00 PM3:21 PM (+1 day)
3:00 PM6:21 PM (+1 day)
6:00 PM9:21 PM (+1 day)
9:00 PM12:21 AM (+2 days)

Note

The estimated duration is a mathematical calculation for a nonstop flight at an average cruise speed of 850 km/h and is outside our control. Actual flight time varies with the airline, the routing, weather and the jet stream. Check with the airline for the exact duration.

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Other routes from Seattle

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Frequently asked questions

How long is the flight from Seattle to Seoul?
The direct flight from Seattle to Seoul takes about 10h 21m over a distance of roughly 8,370 km. This is an estimate for a nonstop flight at an average cruise speed; itineraries with a connection take longer depending on the layover.
What is the distance between Seattle and Seoul?
The approximate straight-line distance between Seattle and Seoul is about 8,370 km. This great-circle distance is what we use to estimate the nonstop flight duration.
What is the time difference between Seattle and Seoul?
Seoul is 17 hours ahead of Seattle. The offset is already reflected in the local arrival times in the table above.