Distance From Watthana Nakhon Airport to Ulaanbaatar Chinggis Khaan International Airport

The distance from Watthana Nakhon Airport () to Ulaanbaatar Chinggis Khaan International Airport (UBN) is 2355 miles or 3790 kilometers or 2046 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 Watthana Nakhon ( Thailand ) to Ulaanbaatar (Sergelen) ( Mongolia )?

A one-way nonstop (direct) flight between Watthana Nakhon and Ulaanbaatar (Sergelen) takes around 5 hours 24 minutes.

Estimated flight time from Watthana Nakhon Airport, Watthana Nakhon, Thailand to Ulaanbaatar Chinggis Khaan International Airport, Ulaanbaatar (Sergelen), Mongolia is 5 hours 24 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		3790 km
Statute Miles		2355 miles
Nautical Miles		2046 nm
Avg. Time of Flight		5 hours 24 minutes

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

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

Click to see flight route on Google Map between Watthana Nakhon, Thailand and Ulaanbaatar (Sergelen), Mongolia. .

Nonstop flight route between Watthana Nakhon, Thailand and Ulaanbaatar (Sergelen), Mongolia.

Time Difference Between the Airports • - UBN

Time difference between Watthana Nakhon (Thailand) and Ulaanbaatar (Sergelen) (Mongolia) is 1 Hours.
Ulaanbaatar (Sergelen) time is 1 Hours ahead of Watthana Nakhon.

Location	Local Time
Watthana Nakhon (Thailand)	2026-10-29, 07:54:21 +07
Ulaanbaatar (Sergelen) (Mongolia)	2026-10-29, 08:54:21 +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

Watthana Nakhon Airport ( / VTBW) Watthana Nakhon, Thailand

Destination

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