Seoul (ICN) to Seattle (SEA) flights
4 airlines fly nonstop from Seoul (ICN) to Seattle (SEA): Alaska Airlines, Asiana Airlines, Delta Air Lines and Korean Air. The two airports are 5,205 miles (8,376 km) apart. Alaska Airlines is in oneworld, Asiana Airlines is in Star Alliance and Delta Air Lines and Korean Air are in SkyTeam. There are also 31 ways to fly it with one stop, through Vancouver, Tokyo and Tokyo and more.
Airlines flying nonstop from ICN to SEA
- Alaska Airlinesoneworld · bookable with 9 programsWho books it
- Asiana AirlinesStar Alliance · bookable with 11 programsWho books it
- Delta Air LinesSkyTeam · bookable with 8 programsWho books it
- Korean AirSkyTeam · bookable with 10 programsWho books it
Book ICN to SEA with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Aeromexico RewardsBooks Delta Air Lines, Korean Air
- Air France-KLM Flying BlueBooks Delta Air Lines, Korean Air
- Alaska Atmos RewardsBooks Alaska Airlines, Korean Air
- China Eastern Eastern MilesBooks Delta Air Lines, Korean Air
- Delta SkyMilesBooks Delta Air Lines, Korean Air
- Garuda Indonesia GarudaMilesBooks Delta Air Lines, Korean Air
- Korean Air SKYPASSBooks Delta Air Lines, Korean Air
- SAS EuroBonusBooks Delta Air Lines, Korean Air
- Virgin Atlantic Flying ClubBooks Delta Air Lines, Korean Air
- Air Canada AeroplanBooks Asiana Airlines
- Air New Zealand AirpointsBooks Asiana Airlines
- American AAdvantageBooks Alaska Airlines
- ANA Mileage ClubBooks Asiana Airlines
- Avianca LifeMilesBooks Asiana Airlines
- British Airways ClubBooks Alaska Airlines
- Cathay Pacific Asia MilesBooks Alaska Airlines
- Emirates SkywardsBooks Korean Air
- EVA Air Infinity MileageLandsBooks Asiana Airlines
- Finnair PlusBooks Alaska Airlines
- Iberia ClubBooks Alaska Airlines
- JAL Mileage BankBooks Alaska Airlines
- Lufthansa Miles & MoreBooks Asiana Airlines
- Qantas Frequent FlyerBooks Alaska Airlines
- Qatar Airways Privilege ClubBooks Alaska Airlines
- Singapore Airlines KrisFlyerBooks Asiana Airlines
- TAP Miles&GoBooks Asiana Airlines
- Thai Royal Orchid PlusBooks Asiana Airlines
- Turkish Airlines Miles&SmilesBooks Asiana Airlines
- United MileagePlusBooks Asiana Airlines
ICN to SEA with one stop
31 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Vancouver (YVR)Air Canada the whole way
- Via Tokyo (NRT)Jeju Air, Ethiopian Airlines and 11 more, then Delta Air Lines, JAL and 1 more
+10
- Via Tokyo (HND)Korean Air, Peach Aviation and 1 more, then Delta Air Lines and ANA
- Via Calgary (YYC)WestJet the whole way
- Via Beijing (PEK)Air China, Korean Air and 1 more, then Hainan Airlines
- Via Shanghai (PVG)Spring Airlines, China Southern Airlines and 5 more, then Delta Air Lines
+4
- Via San Francisco (SFO)United Airlines the whole way+1
- Via Salt Lake City (SLC)Delta Air Lines the whole way
- Via Las Vegas (LAS)Delta Air Lines and American Airlines the whole way
+2
- Via Los Angeles (LAX)Korean Air, Asiana Airlines and 1 more, then American Airlines, Alaska Airlines and 3 moreYP+2
- Via Taipei (TPE)EVA Air and China Airlines the whole way
+6
+1 - Via Honolulu (HNL)Korean Air and Air Premia, then Alaska Airlines and Delta Air LinesYP
- Via Chongqing (CKG)Air China and Asiana Airlines, then Hainan Airlines
- Via Minneapolis (MSP)Delta Air Lines the whole way
- Via Hong Kong (HKG)Cathay Pacific the whole way
+7
ICN to SEA: common questions
Which airlines fly nonstop from ICN to SEA?
Alaska Airlines (oneworld), Asiana Airlines (Star Alliance), Delta Air Lines (SkyTeam) and Korean Air (SkyTeam) fly nonstop from Seoul (ICN) to Seattle (SEA).
How far is Seoul from Seattle by plane?
Seoul (ICN) and Seattle (SEA) are 5,205 miles (8,376 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book ICN to SEA award flights?
29 programs can book at least one of the nonstop airlines: Aeromexico Rewards, Air France-KLM Flying Blue, Alaska Atmos Rewards, China Eastern Eastern Miles, Delta SkyMiles, Garuda Indonesia GarudaMiles, Korean Air SKYPASS, SAS EuroBonus and 21 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does ICN to SEA cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for ICN to SEA with taxes and fees.
Where can I connect between Seoul and Seattle?
The most direct connections are through Vancouver (YVR), Tokyo (NRT), Tokyo (HND), Calgary (YYC) and Beijing (PEK). On 19 of them the same airline flies both flights, for example Air Canada through Vancouver.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.