Distance From PTNO Airport to Ulaanbaatar Chinggis Khaan International Airport

The distance from PTNO Airport () to Ulaanbaatar Chinggis Khaan International Airport (UBN) is 6455 miles or 10389 kilometers or 5606 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 Hennessey ( United States ) to Ulaanbaatar (Sergelen) ( Mongolia )?

A one-way nonstop (direct) flight between Hennessey and Ulaanbaatar (Sergelen) takes around 14 hours 50 minutes.

Estimated flight time from PTNO Airport, Hennessey, United States to Ulaanbaatar Chinggis Khaan International Airport, Ulaanbaatar (Sergelen), Mongolia is 14 hours 50 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		10389 km
Statute Miles		6455 miles
Nautical Miles		5606 nm
Avg. Time of Flight		14 hours 50 minutes

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

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

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

Nonstop flight route between Hennessey, United States and Ulaanbaatar (Sergelen), Mongolia.

Time Difference Between the Airports • - UBN

Time difference between Hennessey (United States) and Ulaanbaatar (Sergelen) (Mongolia) is 14 Hours.
Ulaanbaatar (Sergelen) time is 14 Hours ahead of Hennessey.

Location	Local Time
Hennessey (United States)	2026-08-02, 20:59:20 MDT
Ulaanbaatar (Sergelen) (Mongolia)	2026-08-03, 10:59:20 +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

PTNO Airport ( / OK56) Hennessey, United States

Destination

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