Distance From Ulaanbaatar Chinggis Khaan International Airport to London Stansted Airport, UBN - STN Distance

The distance from Ulaanbaatar Chinggis Khaan International Airport (UBN) to London Stansted Airport (STN) is 4314 miles or 6943 kilometers or 3747 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 Ulaanbaatar (Sergelen) ( Mongolia ) to London ( United Kingdom )?

A one-way nonstop (direct) flight between Ulaanbaatar (Sergelen) and London takes around 9 hours 55 minutes.

Estimated flight time from Ulaanbaatar Chinggis Khaan International Airport, Ulaanbaatar (Sergelen), Mongolia to London Stansted Airport, London, United Kingdom is 9 hours 55 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 - STN

Kilometers		6943 km
Statute Miles		4314 miles
Nautical Miles		3747 nm
Avg. Time of Flight		9 hours 55 minutes

Ulaanbaatar Chinggis Khaan International Airport to London Stansted Airport Flight Route Map - UBN to STN Flight Path

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

Click to see flight route on Google Map between Ulaanbaatar (Sergelen), Mongolia and London, United Kingdom. .

Nonstop flight route between Ulaanbaatar (Sergelen), Mongolia and London, United Kingdom.

Time Difference Between the Airports • UBN - STN

Time difference between Ulaanbaatar (Sergelen) (Mongolia) and London (United Kingdom) is 8 Hours.
London time is 8 Hours behind Ulaanbaatar (Sergelen).

Location	Local Time
Ulaanbaatar (Sergelen) (Mongolia)	2025-12-08, 11:07:30 +08
London (United Kingdom)	2025-12-08, 03:07:30 GMT

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

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

Destination

London Stansted Airport (STN / EGSS) London, United Kingdom