Distance From Buchanan Airport to Ulaanbaatar Chinggis Khaan International Airport, UCN - UBN Distance

The distance from Buchanan Airport (UCN) to Ulaanbaatar Chinggis Khaan International Airport (UBN) is 7125 miles or 11466 kilometers or 6187 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 Buchanan ( Liberia ) to Ulaanbaatar (Sergelen) ( Mongolia )?

A one-way nonstop (direct) flight between Buchanan and Ulaanbaatar (Sergelen) takes around 16 hours 22 minutes.

Estimated flight time from Buchanan Airport, Buchanan, Liberia to Ulaanbaatar Chinggis Khaan International Airport, Ulaanbaatar (Sergelen), Mongolia is 16 hours 22 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 • UCN - UBN

Kilometers		11466 km
Statute Miles		7125 miles
Nautical Miles		6187 nm
Avg. Time of Flight		16 hours 22 minutes

Buchanan Airport to Ulaanbaatar Chinggis Khaan International Airport Flight Route Map - UCN to UBN Flight Path

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

Click to see flight route on Google Map between Buchanan, Liberia and Ulaanbaatar (Sergelen), Mongolia. .

Nonstop flight route between Buchanan, Liberia and Ulaanbaatar (Sergelen), Mongolia.

Time Difference Between the Airports • UCN - UBN

Time difference between Buchanan (Liberia) and Ulaanbaatar (Sergelen) (Mongolia) is 8 Hours.
Ulaanbaatar (Sergelen) time is 8 Hours ahead of Buchanan.

Location	Local Time
Buchanan (Liberia)	2026-03-15, 14:08:35 GMT
Ulaanbaatar (Sergelen) (Mongolia)	2026-03-15, 22:08:35 +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

Buchanan Airport (UCN / GLBU) Buchanan, Liberia

Destination

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