South Korea to Turkey · 4,924 miles (7,925 km)

Seoul (ICN) to Istanbul (IST) flights

3 airlines fly nonstop from Seoul (ICN) to Istanbul (IST): Asiana Airlines, Korean Air and Turkish Airlines. The two airports are 4,924 miles (7,925 km) apart. Asiana Airlines and Turkish Airlines are in Star Alliance and Korean Air is in SkyTeam. There are also 52 ways to fly it with one stop, through Astana, Ulaanbaatar and Beijing and more.

Airlines flying nonstop from ICN to IST

  • Asiana Airlines logo
    Asiana AirlinesStar Alliance · bookable with 11 programsWho books it
  • Korean Air logo
    Korean AirSkyTeam · bookable with 10 programsWho books it
  • Turkish Airlines logo
    Turkish AirlinesStar Alliance · bookable with 11 programsWho books it

Book ICN to IST with points

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

ICN to IST with one stop

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

  • Via Astana (NQZ)Air Astana the whole way
    Air Astana logo
    Air Astana logo
    Turkish Airlines logo
  • Via Ulaanbaatar (UBN)Miat - Mongolian Airlines the whole way
    Korean Air logo
    OM
    Asiana Airlines logo
    +4
    Turkish Airlines logo
    OM
  • Via Beijing (PEK)Air China the whole way
    Air China logo
    Korean Air logo
    Asiana Airlines logo
    Turkish Airlines logo
    Air China logo
  • Via Beijing (PKX)China Southern Airlines the whole way
    China Southern Airlines logo
    China Eastern Airlines logo
    Air China logo
    China Southern Airlines logo
  • Via Almaty (ALA)Air Astana the whole way
    Air Astana logo
    Asiana Airlines logo
    ZE
    Air Astana logo
    Turkish Airlines logo
  • Via Bishkek (BSZ)T´Way Air, then Turkish Airlines
    T´Way Air logo
    Turkish Airlines logo
  • Via Shymkent (CIT)SCAT Airlines the whole way
    DV
    DV
  • Via Tashkent (TAS)Uzbekistan Airways, Taban Air and 1 more the whole way
    HY
    Asiana Airlines logo
    HH
    +1
    HY
    Turkish Airlines logo
    HH
    +1
  • Via Ashgabat (ASB)Turkmenistan Airlines the whole way
    T5
    T5
    Turkish Airlines logo
  • Via Xian (XIY)China Eastern Airlines the whole way
    Korean Air logo
    China Eastern Airlines logo
    Asiana Airlines logo
    China Eastern Airlines logo
  • Via Shanghai (PVG)China Eastern Airlines the whole way
    Spring Airlines logo
    China Southern Airlines logo
    Shanghai Airlines logo
    +4
    Turkish Airlines logo
    China Eastern Airlines logo
  • Via Chengdu (TFU)Sichuan Airlines the whole way
    3U
    Asiana Airlines logo
    Air China logo
    3U
    Turkish Airlines logo
  • Via Warsaw (WAW)LOT - Polish Airlines the whole way
    LOT - Polish Airlines logo
    LOT - Polish Airlines logo
    Turkish Airlines logo
  • Via Budapest (BUD)Korean Air and Asiana Airlines, then Turkish Airlines and Wizz Air
    Korean Air logo
    Asiana Airlines logo
    Turkish Airlines logo
    Wizz Air logo
  • Via Helsinki (HEL)Finnair, then Turkish Airlines
    Finnair logo
    Turkish Airlines logo
See all 52 in Routes

ICN to IST: common questions

Which airlines fly nonstop from ICN to IST?

Asiana Airlines (Star Alliance), Korean Air (SkyTeam) and Turkish Airlines (Star Alliance) fly nonstop from Seoul (ICN) to Istanbul (IST).

How far is Seoul from Istanbul by plane?

Seoul (ICN) and Istanbul (IST) are 4,924 miles (7,925 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 IST award flights?

21 programs can book at least one of the nonstop airlines: Air Canada Aeroplan, Air New Zealand Airpoints, ANA Mileage Club, Avianca LifeMiles, EVA Air Infinity MileageLands, Lufthansa Miles & More, Singapore Airlines KrisFlyer, TAP Miles&Go and 13 more. Which flights each can book depends on its partners, so check the airline before you transfer points.

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

Where can I connect between Seoul and Istanbul?

The most direct connections are through Astana (NQZ), Ulaanbaatar (UBN), Beijing (PEK), Beijing (PKX) and Almaty (ALA). On 23 of them the same airline flies both flights, for example Air Astana through Astana.

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.