Ulaanbaatar (UBN) to Busan (PUS) flights
3 airlines fly nonstop from Ulaanbaatar (UBN) to Busan (PUS): Air Busan, Jeju Air and Jin Air. The two airports are 1,425 miles (2,294 km) apart. There are also 5 ways to fly it with one stop, through Seoul, Beijing and Shanghai and more.
Airlines flying nonstop from UBN to PUS
- BXAir BusanNot in an alliance
- Jeju AirNot in an alliance
- Jin AirNot in an alliance
UBN to PUS with one stop
5 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Seoul (ICN)Korean Air the whole way
OM+4
- Via Beijing (PEK)Air China the whole wayOM
- Via Shanghai (PVG)Spring Airlines the whole wayOM
+2
- Via Osaka (KIX)Miat - Mongolian Airlines, then Jeju Air, Air Busan and 3 moreOMBX+2
- Via Tokyo (NRT)Miat - Mongolian Airlines, Aero Mongolia and 1 more, then Jeju Air, Air Busan and 3 moreOMM0
BX+2
UBN to PUS: common questions
Which airlines fly nonstop from UBN to PUS?
Air Busan, Jeju Air and Jin Air fly nonstop from Ulaanbaatar (UBN) to Busan (PUS).
How far is Ulaanbaatar from Busan by plane?
Ulaanbaatar (UBN) and Busan (PUS) are 1,425 miles (2,294 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
How many miles does UBN to PUS cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for UBN to PUS with taxes and fees.
Where can I connect between Ulaanbaatar and Busan?
The most direct connections are through Seoul (ICN), Beijing (PEK), Shanghai (PVG), Osaka (KIX) and Tokyo (NRT). On 3 of them the same airline flies both flights, for example Korean Air through Seoul.
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.