Distance From West Houston Airport to Ulaanbaatar Chinggis Khaan International Airport, IWS - UBN Distance

The distance from West Houston Airport (IWS) to Ulaanbaatar Chinggis Khaan International Airport (UBN) is 6905 miles or 11112 kilometers or 5997 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 Houston ( United States ) to Ulaanbaatar (Sergelen) ( Mongolia )?

A one-way nonstop (direct) flight between Houston and Ulaanbaatar (Sergelen) takes around 15 hours 52 minutes.

Estimated flight time from West Houston Airport, Houston, United States to Ulaanbaatar Chinggis Khaan International Airport, Ulaanbaatar (Sergelen), Mongolia is 15 hours 52 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 • IWS - UBN

Kilometers		11112 km
Statute Miles		6905 miles
Nautical Miles		5997 nm
Avg. Time of Flight		15 hours 52 minutes

West Houston Airport to Ulaanbaatar Chinggis Khaan International Airport Flight Route Map - IWS to UBN Flight Path

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

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

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

Time Difference Between the Airports • IWS - UBN

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

Location	Local Time
Houston (United States)	2025-12-17, 00:05:23 CST
Ulaanbaatar (Sergelen) (Mongolia)	2025-12-17, 14:05:23 +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

West Houston Airport (IWS / KIWS) Houston, United States

Destination

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