AirportsSeoul

Seoul to Seattle

🇰🇷ICN🇺🇸SEAIncheon International Airport to Seattle–Tacoma International AirportSouth Korea to United States
Distance
8,373 km
5,203 miles
Frequency
25 departures a week
S26 schedule
Airlines
4
Korean Air, Alaska Airlines, Delta Air Lines, codeshares included
Typical delay
25 min
44 departures

The route

Great circle, 8,373 km
ICNSEA8,373 km
8,373 km (5,203 miles) great-circle, measured between the two airports' published coordinates. The line is the shortest path over the globe, which on a flat map bows away from a straight line.

How delayed is this route?

Measured over months

Departures from Incheon International Airport on this route are typically 25 minutes late (likely 22 to 29), across 44 departures we tracked between 2026-03-23 and 2026-08-24.

median delay of tracked departures on this leg. Flight Owl's own resolved departure predictions (flights our users tracked), not a census of all flights at the airport.

Airlines on this route

4 airlines with a flight number here

Every airline that puts its own flight number on this route. On a busy pair most of them are codeshare partners selling seats on another airline's aircraft, so this is wider than the list of airlines that actually operate it.

Flights on this route

2 of 5 flight numbers tracked often enough to describe
FlightAirlineDepartsAircraftDepartures seen
KE 41Korean Air16:40B78X28
DL 196Delta Air Lines19:00A35914

Departure times are local to Incheon International Airport. A flight appears here once we have tracked it at least 10 times.

Both airports

How these numbers are measured