South Korea to United States · 5,646 miles (9,086 km)

Seoul (ICN) to San Francisco (SFO) flights

4 airlines fly nonstop from Seoul (ICN) to San Francisco (SFO): Air Premia, Asiana Airlines, Korean Air and United Airlines. The two airports are 5,646 miles (9,086 km) apart. Asiana Airlines and United Airlines are in Star Alliance and Korean Air is in SkyTeam. There are also 41 ways to fly it with one stop, through Sapporo, Seattle and Tokyo and more.

Airlines flying nonstop from ICN to SFO

  • YP
    Air PremiaNot in an alliance
  • Asiana Airlines logo
    Asiana AirlinesStar Alliance · bookable with 11 programsWho books it
  • Korean Air logo
    Korean AirSkyTeam · bookable with 10 programsWho books it
  • United Airlines logo
    United AirlinesStar Alliance · bookable with 13 programsWho books it

Book ICN to SFO with points

Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.

ICN to SFO with one stop

41 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.

  • Via Sapporo (CTS)Jeju Air, Korean Air and 5 more, then United Airlines
    Jeju Air logo
    Korean Air logo
    Jin Air logo
    +4
    United Airlines logo
  • Via Seattle (SEA)Delta Air Lines and Alaska Airlines the whole way
    Delta Air Lines logo
    Korean Air logo
    Asiana Airlines logo
    +1
    Alaska Airlines logo
    Delta Air Lines logo
    United Airlines logo
  • Via Tokyo (NRT)Zipair Tokyo the whole way
    Jeju Air logo
    Ethiopian Airlines logo
    Korean Air logo
    +10
    ANA logo
    United Airlines logo
    JAL logo
    +1
  • Via Vancouver (YVR)Air Canada the whole way
    Air Canada logo
    Korean Air logo
    T´Way Air logo
    Air Canada logo
    United Airlines logo
    Flair Airlines logo
  • Via Tokyo (HND)Korean Air, Peach Aviation and 1 more, then JAL, United Airlines and 1 more
    Korean Air logo
    Peach Aviation logo
    Asiana Airlines logo
    JAL logo
    United Airlines logo
    ANA logo
  • Via Osaka (KIX)Jeju Air, Korean Air and 8 more, then United Airlines
    Jeju Air logo
    Korean Air logo
    Jin Air logo
    +7
    United Airlines logo
  • Via Los Angeles (LAX)Korean Air, Asiana Airlines and 1 more, then American Airlines, Alaska Airlines and 4 more
    Korean Air logo
    Asiana Airlines logo
    YP
    American Airlines logo
    Alaska Airlines logo
    Delta Air Lines logo
    +3
  • Via Calgary (YYC)WestJet the whole way
    WestJet logo
    United Airlines logo
    WestJet logo
  • Via Las Vegas (LAS)Delta Air Lines, Korean Air and 1 more, then Alaska Airlines, Frontier Airlines and 2 more
    Delta Air Lines logo
    Korean Air logo
    American Airlines logo
    Alaska Airlines logo
    Frontier Airlines logo
    United Airlines logo
    +1
  • Via Beijing (PEK)Air China the whole way
    Air China logo
    Korean Air logo
    Asiana Airlines logo
    Air China logo
    United Airlines logo
  • Via Salt Lake City (SLC)Delta Air Lines the whole way
    Delta Air Lines logo
    Delta Air Lines logo
    United Airlines logo
    Frontier Airlines logo
  • Via Shanghai (PVG)China Eastern Airlines the whole way
    Spring Airlines logo
    China Southern Airlines logo
    Shanghai Airlines logo
    +4
    China Eastern Airlines logo
    United Airlines logo
  • Via Okinawa (OKA)Jeju Air, Korean Air and 4 more, then United Airlines
    Jeju Air logo
    Korean Air logo
    Jin Air logo
    +3
    United Airlines logo
  • Via Honolulu (HNL)Korean Air and Air Premia, then Alaska Airlines and United Airlines
    Korean Air logo
    YP
    Alaska Airlines logo
    United Airlines logo
  • Via Wuhan (WUH)China Southern Airlines the whole way
    China Southern Airlines logo
    Korean Air logo
    T´Way Air logo
    China Southern Airlines logo
See all 41 in Routes

ICN to SFO: common questions

Which airlines fly nonstop from ICN to SFO?

Air Premia, Asiana Airlines (Star Alliance), Korean Air (SkyTeam) and United Airlines (Star Alliance) fly nonstop from Seoul (ICN) to San Francisco (SFO).

How far is Seoul from San Francisco by plane?

Seoul (ICN) and San Francisco (SFO) are 5,646 miles (9,086 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 SFO award flights?

22 programs can book at least one of the nonstop airlines: Air Canada Aeroplan, Air New Zealand Airpoints, ANA Mileage Club, Avianca LifeMiles, Emirates Skywards, EVA Air Infinity MileageLands, Lufthansa Miles & More, Singapore Airlines KrisFlyer and 14 more. Which flights each can book depends on its partners, so check the airline before you transfer points.

How many miles does ICN to SFO 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 SFO with taxes and fees.

Where can I connect between Seoul and San Francisco?

The most direct connections are through Sapporo (CTS), Seattle (SEA), Tokyo (NRT), Vancouver (YVR) and Tokyo (HND). On 30 of them the same airline flies both flights, for example Delta Air Lines through Seattle.

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.