Seoul (ICN) to Seattle (SEA) flights

Delta Air Lines, Korean Air, Alaska Airlines, Asiana Airlines fly nonstop from Incheon International Airport to Seattle-Tacoma International Airport, with about 25 flights a week in July 2026. The 5,217-mile flight takes about 4h 57m gate to gate.

From
ICN
Seoul
Incheon International Airport
To
SEA
Seattle
Seattle-Tacoma International Airport
Distance
5,217 mi · 8,396 km
Flight time
4h 57m
Airlines
4
Seats filled
81%
Flights a week, July 2026
1,285 flights and 320,532 passengers in 12 months
SEASEAICN
Map data: Natural Earth. Lines follow the shortest (great-circle) path.

Airlines flying ICN to SEA

AirlineFlights a weekAircraftPassengers (12 months)Flight time
Delta Air Lines7Airbus A350-900, Boeing 767-400/ER, Airbus A330-300/33388,58210h 0m
Korean Air7Boeing 787-10 Dreamliner, Boeing 787-9 Dreamliner99,1240m
Alaska Airlines6Boeing 787-9 Dreamliner41,80510h 2m
Asiana Airlines5Airbus A350-90074,7270m
Hawaiian AirlinesSeasonal or endedn/aBoeing 787-9 Dreamliner16,2949h 48m

Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.

Flights by month

MonthFlightsFlights, relativePassengers
August 202592
26,886
September 202596
25,891
October 2025110
22,411
November 2025107
23,891
December 2025110
24,136
January 2026111
26,711
February 202699
20,952
March 2026110
30,710
April 2026114
31,828
May 2026116
28,438
June 2026110
27,794
July 2026111
31,115

Related

Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.