Wayfli › Seattle (SEA) › To Seoul (ICN)

Seattle (SEA) to Seoul (ICN) flights

There are direct flights from Seattle Tacoma International Airport to Seoul Incheon International Airport, sold by 3 airlines (including codeshares): Korean Air, Asiana Airlines and United Airlines. The distance is 8,373 km, about 10h 45m in the air. There are also 7 one-stop options, via airports such as Beijing, Shanghai and Tokyo.

Live fares for SEA → ICNSee all routes on the map
8,373 kmdistance
~10h 45mdirect flight time (estimate)
3direct airlines
7one-stop options

Direct flights from Seattle to Seoul

RouteAirlines (incl. codeshares)DistanceTime (est.)
SEA → ICNKorean Air, Asiana Airlines, United Airlines8,373 km~10h 45m

Best one-stop connections

Through the biggest hubs first. Times include about 100 minutes to change planes.

ViaAirlinesDistanceTime (est.)
PEK BeijingAmerican Airlines and China Southern Airlines then Air China and China Southern Airlines9,582 km~14h 20m
PVG ShanghaiChina Eastern then Spring Airlines and China Southern Airlines10,010 km~14h 50m
NRT TokyoAll Nippon Airways and United Airlines then Jeju Air and American Airlines8,913 km~13h 30m
SFO San FranciscoAmerican Airlines and Alaska Airlines then Air India and Korean Air10,178 km~15h 5m
HND TokyoAll Nippon Airways then Korean Air and All Nippon Airways8,921 km~13h 35m
YVR VancouverAmerican Airlines and Air Canada then Air Canada and Korean Air8,404 km~12h 55m
SLC Salt Lake CityAlaska Airlines and Southwest Airlines then Korean Air10,586 km~15h 35m

More from Seattle and Seoul

Routes come from current airline fares, updated weekly (last update 9 November 2026), plus older schedule data for airports with few recent fares. “Direct” can include a few same-plane flights with a stop. Flight times are estimates from distance. Always check with the airline before booking.