South Korea to Japan · 519 miles (835 km)

Seoul (GMP) to Osaka (KIX) flights

4 airlines fly nonstop from Seoul (GMP) to Osaka (KIX): Asiana Airlines, Jeju Air, Korean Air and Peach Aviation. The two airports are 519 miles (835 km) apart. Asiana Airlines is in Star Alliance and Korean Air is in SkyTeam. There are also 3 ways to fly it with one stop, through Busan, Jeju and Tokyo.

Airlines flying nonstop from GMP to KIX

  • Asiana Airlines logo
    Asiana AirlinesStar Alliance · bookable with 11 programsWho books it
  • Jeju Air logo
    Jeju AirNot in an alliance
  • Korean Air logo
    Korean AirSkyTeam · bookable with 10 programsWho books it
  • Peach Aviation logo
    Peach AviationNot in an alliance

Book GMP to KIX with points

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

GMP to KIX with one stop

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

  • Via Busan (PUS)Jeju Air, Air Busan and 3 more the whole way
    Jeju Air logo
    BX
    Korean Air logo
    +3
    Jeju Air logo
    BX
    Jin Air logo
    +2
  • Via Jeju (CJU)T´Way Air the whole way
    Jeju Air logo
    BX
    Korean Air logo
    +6
    T´Way Air logo
  • Via Tokyo (HND)JAL and ANA the whole way
    JAL logo
    Korean Air logo
    ANA logo
    +1
    7G
    JAL logo
    ANA logo

GMP to KIX: common questions

Which airlines fly nonstop from GMP to KIX?

Asiana Airlines (Star Alliance), Jeju Air, Korean Air (SkyTeam) and Peach Aviation fly nonstop from Seoul (GMP) to Osaka (KIX).

How far is Seoul from Osaka by plane?

Seoul (GMP) and Osaka (KIX) are 519 miles (835 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.

Which points programs can book GMP to KIX award flights?

21 programs can book at least one of the nonstop airlines: Aeromexico Rewards, Air Canada Aeroplan, Air France-KLM Flying Blue, Air New Zealand Airpoints, Alaska Atmos Rewards, ANA Mileage Club, Avianca LifeMiles, China Eastern Eastern Miles and 13 more. Which flights each can book depends on its partners, so check the airline before you transfer points.

How many miles does GMP to KIX cost?

It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for GMP to KIX with taxes and fees.

Where can I connect between Seoul and Osaka?

The most direct connections are through Busan (PUS), Jeju (CJU) and Tokyo (HND). On 3 of them the same airline flies both flights, for example Jeju Air through Busan.

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.