Distance From Sepehr Airport to Ulaanbaatar Chinggis Khaan International Airport

The distance from Sepehr Airport () to Ulaanbaatar Chinggis Khaan International Airport (UBN) is 2899 miles or 4666 kilometers or 2518 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 Tehran ( Iran ) to Ulaanbaatar (Sergelen) ( Mongolia )?

A one-way nonstop (direct) flight between Tehran and Ulaanbaatar (Sergelen) takes around 6 hours 39 minutes.

Estimated flight time from Sepehr Airport, Tehran, Iran to Ulaanbaatar Chinggis Khaan International Airport, Ulaanbaatar (Sergelen), Mongolia is 6 hours 39 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		4666 km
Statute Miles		2899 miles
Nautical Miles		2518 nm
Avg. Time of Flight		6 hours 39 minutes

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

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

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

Nonstop flight route between Tehran, Iran and Ulaanbaatar (Sergelen), Mongolia.

Time Difference Between the Airports • - UBN

Time difference between Tehran (Iran) and Ulaanbaatar (Sergelen) (Mongolia) is 4 Hours 30 Minutes.
Ulaanbaatar (Sergelen) time is 4 Hours 30 Minutes ahead of Tehran.

Location	Local Time
Tehran (Iran)	2026-09-14, 04:46:50 +0330
Ulaanbaatar (Sergelen) (Mongolia)	2026-09-14, 09:16:50 +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

Sepehr Airport ( / ) Tehran, Iran

Destination

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