Direct (nonstop) flights from Busan to Ulaanbaatar
3 airlines fly nonstop from Gimhae International (PUS) to Chinggis Khan International Airport (UBN). It's 1,427 miles (2,297 km), about 3h 50m in the air. Operated by Jeju Air, Air Busan, Jin Air.
Jeju Air
Air Busan
Jin Air
Route data last updated: May 26, 2026
Airlines with non-stop flights
Alternative Routes
Other ways to fly from Busan to Ulaanbaatar with one stop · direct emits 241 kg CO₂ per passenger
Looking for the return flight?
UBN → PUS: Flights from Ulaanbaatar to BusanOther direct flights from Busan
Direct flights from Ulaanbaatar (UBN)
Frequently Asked Questions
How long is the direct flight from Busan to Ulaanbaatar?
A nonstop flight from Busan (PUS) to Ulaanbaatar (UBN) takes approximately 3 hours and 50 minutes. The distance is 1,427 miles (2,297 km).
Which airlines fly nonstop from Busan to Ulaanbaatar?
3 airlines: Jeju Air, Air Busan, Jin Air.
Is there a nonstop flight from Busan to Ulaanbaatar?
Yes. 3 airlines: Jeju Air, Air Busan, Jin Air.
How far is Busan from Ulaanbaatar?
The flight distance from Busan to Ulaanbaatar is 1,427 miles (2,297 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Miami.
What is the time difference between Busan and Ulaanbaatar?
Ulaanbaatar is 1 hour behind Busan. (Asia/Seoul vs Asia/Ulaanbaatar.)
What type of aircraft flies from Busan to Ulaanbaatar?
At 3h 50m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
Do I need a visa to travel from Republic of Korea to Mongolia?
Depends on your passport. Check with the Mongolia embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Busan to Ulaanbaatar?
Roughly 241 kg CO2 per passenger one-way. That's about the same as driving 1,205 km.
Is the return flight from Ulaanbaatar to Busan also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Busan to Ulaanbaatar?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Gimhae International for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.