Distance From Homey (Area 51) Airport to Ulaanbaatar Chinggis Khaan International Airport

The distance from Homey (Area 51) Airport () to Ulaanbaatar Chinggis Khaan International Airport (UBN) is 6011 miles or 9673 kilometers or 5220 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 Groom Lake ( United States ) to Ulaanbaatar (Sergelen) ( Mongolia )?

A one-way nonstop (direct) flight between Groom Lake and Ulaanbaatar (Sergelen) takes around 13 hours 49 minutes.

Estimated flight time from Homey (Area 51) Airport, Groom Lake, United States to Ulaanbaatar Chinggis Khaan International Airport, Ulaanbaatar (Sergelen), Mongolia is 13 hours 49 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		9673 km
Statute Miles		6011 miles
Nautical Miles		5220 nm
Avg. Time of Flight		13 hours 49 minutes

Homey (Area 51) Airport to Ulaanbaatar Chinggis Khaan International Airport Flight Route Map - to UBN Flight Path

Location of Homey (Area 51) Airport & Ulaanbaatar Chinggis Khaan International Airport is given below.
Click the map to view Groom Lake to Ulaanbaatar (Sergelen) nonstop flight path and travel direction.

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

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

Time Difference Between the Airports • - UBN

Time difference between Groom Lake (United States) and Ulaanbaatar (Sergelen) (Mongolia) is 15 Hours.
Ulaanbaatar (Sergelen) time is 15 Hours ahead of Groom Lake.

Location	Local Time
Groom Lake (United States)	2026-03-19, 01:47:51 PDT
Ulaanbaatar (Sergelen) (Mongolia)	2026-03-19, 16:47:51 +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

Homey (Area 51) Airport ( / KXTA) Groom Lake, United States

Destination

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