Direct (nonstop) flights from Cheongju to Ulaanbaatar
1 airline flys nonstop from Cheongju International Airport (CJJ) to Chinggis Khan International Airport (UBN). It's 1,295 miles (2,084 km), about 3h 45m in the air. Operated by T´Way Air.
T´Way Air
Route data last updated: May 27, 2026
Airlines with non-stop flights
Alternative Routes
Other ways to fly from Cheongju to Ulaanbaatar with one stop · direct emits 219 kg CO₂ per passenger
Looking for the return flight?
UBN → CJJ: Flights from Ulaanbaatar to CheongjuOther direct flights from Cheongju
Direct flights from Ulaanbaatar (UBN)
Frequently Asked Questions
How long is the direct flight from Cheongju to Ulaanbaatar?
A nonstop flight from Cheongju (CJJ) to Ulaanbaatar (UBN) takes approximately 3 hours and 45 minutes. The distance is 1,295 miles (2,084 km).
Which airlines fly nonstop from Cheongju to Ulaanbaatar?
Just T´Way Air.
Is there a nonstop flight from Cheongju to Ulaanbaatar?
Yes. 1 airline: T´Way Air.
How far is Cheongju from Ulaanbaatar?
The flight distance from Cheongju to Ulaanbaatar is 1,295 miles (2,084 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 Cheongju and Ulaanbaatar?
Ulaanbaatar is 1 hour behind Cheongju. (Asia/Seoul vs Asia/Ulaanbaatar.)
What type of aircraft flies from Cheongju to Ulaanbaatar?
At 3h 45m, 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 Cheongju to Ulaanbaatar?
Roughly 219 kg CO2 per passenger one-way. That's about the same as driving 1,095 km.
Is the return flight from Ulaanbaatar to Cheongju 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 Cheongju 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 Cheongju International Airport for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.