Seoul (ICN) to Ulaanbaatar (Sergelen) (UBN) flights
Nonstop from Incheon International to Ulaanbaatar Chinggis Khaan International Airport: distance, flying time, which airlines fly it and how often.
Distance
1,216 mi, great circle
Flying time
typical, gate to gate
Flights a day
average, November 2026
Airlines
passenger airlines
Airlines flying ICN to UBN
Also in the data (cargo, charter or a foreign airline on a domestic route): Aero Mongolia, Miat - Mongolian Airlines.
Route map
The shortest path over the Earth's surface. Actual tracks vary with winds and airspace. Map © OpenStreetMap contributors.
Cheapest recent fare
Fares found in recent searches load here. You can also compare ICN to UBN fares by month.
Both directions
- Ulaanbaatar Chinggis Khaan International Airport (UBN) · we don't have UBN's route list yet
- All nonstop routes from Seoul (ICN)
- ICN to UBN on the flight-path tool
Frequently asked questions
How long is the flight from Seoul to Ulaanbaatar (Sergelen)?
About 3h 00m gate to gate for the 1,957 km (1,216 mile) trip, estimated from distance. Schedules vary by airline and season, and winds can add or save time.
Which airlines fly nonstop from ICN to UBN?
Asiana Airlines, Jeju Air and Korean Air, with about 4.3 flights a day between them in our data (AeroDataBox, November 2026).