Tway Air
Did you mean flights from Cheongju & Daejeon to Ulaanbaatar?
Mongolia
Ulaanbaatar International Airport
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South Korea
Cheong Ju International Airport
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Scan through all non-stop flights from Ulaanbaatar to Cheongju & Daejeon. The full flight schedule below gives an overview of all non-stop flights from UBN to CJJ, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
Known for its continental climate, Cheongju & Daejeon features hot, humid summers with temperatures above 30°C (86°F) and cold, snowy winters that often drop below 0°C (32°F). This striking seasonal contrast offers travelers a variety of activities, from summer hiking to winter sports, ensuring year-round appeal.
The best time to visit Cheongju & Daejeon is from March to November, covering spring, summer, and fall. While summer can be hot, it also sees slightly more rainfall than other seasons.

In total there are 2 airlines operating nonstop flights from Ulaanbaatar UBN to Cheongju & Daejeon CJJ. This section gives an overview of the flight schedules and timetables of every airline with direct flights for this route.
Click an airline below to view their UBN CJJ flight schedule.
Flights from UBN to CJJ are operated once a week. Departure times vary between 01:55 - 02:05. The earliest flight departs at 01:55, the last flight departs at 02:05. However, this depends on the date you are flying so please check with the full flight schedule above to see which departure times are available on your preferred date(s) of travel.
On this non-stop route, you can fly in Economy only.
The fastest direct flight from Ulaanbaatar to Cheongju & Daejeon takes 3 hours and 50 minutes. The flight distance between Ulaanbaatar and Cheongju & Daejeon is 1,293 miles (or 2,081 km).
There is 1 airport in Cheongju & Daejeon: Cheong Ju International Airport (CJJ).
There is 1 flight per week flying from Ulaanbaatar to Cheongju & Daejeon (as of April 2026).
3 hours and 50 minutes is the average flight time from Ulaanbaatar to Cheongju & Daejeon.
The distance from Ulaanbaatar to Cheongju & Daejeon is 1,293 miles (2,081 kilometers).
Aero K and Tway Air are flying nonstop from Ulaanbaatar to Cheongju & Daejeon.
There are no alliances flying direct from Ulaanbaatar to Cheongju & Daejeon at the moment.
You can fly non-stop in Economy only.
Aircraft types that fly from Ulaanbaatar to Cheongju & Daejeon:
The earliest flight departs at 01:55 from Ulaanbaatar and arrives at 06:45 at Cheongju & Daejeon.
The latest flight departs at 02:05 from Ulaanbaatar and arrives at 06:10 at Cheongju & Daejeon.
1,293 miles (2,081 km) · 3h 50m
01:55
06:45
Tway Air
TW 426
Tway Air
Boeing 737 MAX 8
Y
W
J
F
02:05
06:10
Aero K
RF 422
Aero K
Airbus A320-100/200
Y
W
J
F
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