Distance From Onchon Air Base to Ulaanbaatar Chinggis Khaan International Airport

The distance from Onchon Air Base () to Ulaanbaatar Chinggis Khaan International Airport (UBN) is 1102 miles or 1773 kilometers or 957 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Onchon ( North Korea ) to Ulaanbaatar (Sergelen) ( Mongolia )?

A one-way nonstop (direct) flight between Onchon and Ulaanbaatar (Sergelen) takes around 2 hours 31 minutes.

Estimated flight time from Onchon Air Base, Onchon, North Korea to Ulaanbaatar Chinggis Khaan International Airport, Ulaanbaatar (Sergelen), Mongolia is 2 hours 31 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • - UBN

Kilometers		1773 km
Statute Miles		1102 miles
Nautical Miles		957 nm
Avg. Time of Flight		2 hours 31 minutes

Onchon Air Base to Ulaanbaatar Chinggis Khaan International Airport Flight Route Map - to UBN Flight Path

Location of Onchon Air Base & Ulaanbaatar Chinggis Khaan International Airport is given below.
Click the map to view Onchon to Ulaanbaatar (Sergelen) nonstop flight path and travel direction.

Click to see flight route on Google Map between Onchon, North Korea and Ulaanbaatar (Sergelen), Mongolia. .

Nonstop flight route between Onchon, North Korea and Ulaanbaatar (Sergelen), Mongolia.

Time Difference Between the Airports • - UBN

Time difference between Onchon (North Korea) and Ulaanbaatar (Sergelen) (Mongolia) is 1 Hours.
Ulaanbaatar (Sergelen) time is 1 Hours behind Onchon.

Location	Local Time
Onchon (North Korea)	2025-12-15, 22:03:46 KST
Ulaanbaatar (Sergelen) (Mongolia)	2025-12-15, 21:03:46 +08

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Onchon Air Base ( / ) Onchon, North Korea

Destination

Ulaanbaatar Chinggis Khaan International Airport (UBN / ZMCK) Ulaanbaatar (Sergelen), Mongolia