Routes · From SEA

Seattle (SEA) to Seoul (ICN) flights

Nonstop from Seattle-Tacoma International to Incheon International: distance, flying time, which airlines fly it and how often.

Distance

8,373km

5,203 mi, great circle

Flying time

10h 38m

typical, gate to gate

Flights a day

5

average, November 2026

Airlines

3

passenger airlines

Airlines flying SEA to ICN

Also in the data (cargo, charter or a foreign airline on a domestic route): Air Incheon.

Route map

The shortest path over the Earth's surface. Actual tracks vary with winds and airspace. Map © OpenStreetMap contributors.

Cheapest recent fare

Fares found in recent searches load here. You can also compare SEA to ICN fares by month.

Both directions

Related guides

Frequently asked questions

How long is the flight from Seattle to Seoul?

About 10h 38m gate to gate for the 8,373 km (5,203 mile) trip, estimated from distance. Schedules vary by airline and season, and winds can add or save time.

Which airlines fly nonstop from SEA to ICN?

Alaska Airlines, Delta Air Lines and Korean Air, with about 5 flights a day between them in our data (AeroDataBox, November 2026).