Direct (nonstop) flights from Ulaanbaatar to Busan
3 airlines fly nonstop from Chinggis Khan International Airport (UBN) to Gimhae International (PUS). It's 1,427 miles (2,297 km), about 3h 40m in the air. Operated by Jeju Air, Air Busan, Jin Air.
Jeju Air
Air Busan
Jin Air
Route data last updated: May 28, 2026
Airlines with non-stop flights
Alternative Routes
Other ways to fly from Ulaanbaatar to Busan with one stop · direct emits 241 kg CO₂ per passenger
Looking for the return flight?
PUS → UBN: Flights from Busan to UlaanbaatarOther direct flights from Ulaanbaatar
Direct flights from Busan (PUS)
Frequently Asked Questions
How long is the direct flight from Ulaanbaatar to Busan?
A nonstop flight from Ulaanbaatar (UBN) to Busan (PUS) takes approximately 3 hours and 40 minutes. The distance is 1,427 miles (2,297 km).
Which airlines fly nonstop from Ulaanbaatar to Busan?
3 airlines: Jeju Air, Air Busan, Jin Air.
Is there a nonstop flight from Ulaanbaatar to Busan?
Yes. 3 airlines: Jeju Air, Air Busan, Jin Air.
How far is Ulaanbaatar from Busan?
The flight distance from Ulaanbaatar to Busan 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 Ulaanbaatar and Busan?
Busan is 1 hour ahead of Ulaanbaatar. (Asia/Ulaanbaatar vs Asia/Seoul.)
What type of aircraft flies from Ulaanbaatar to Busan?
At 3h 40m, 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 Mongolia to Republic of Korea?
Depends on your passport. Check with the Republic of Korea embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Ulaanbaatar to Busan?
Roughly 241 kg CO2 per passenger one-way. That's about the same as driving 1,205 km.
Is the return flight from Busan to Ulaanbaatar 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 Ulaanbaatar to Busan?
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 Chinggis Khan International Airport for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.