Distance From Reguengos de Monsaraz Airstrip to Ulaanbaatar Chinggis Khaan International Airport

The distance from Reguengos de Monsaraz Airstrip () to Ulaanbaatar Chinggis Khaan International Airport (UBN) is 5255 miles or 8457 kilometers or 4564 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 Reguengos de Monsaraz ( Portugal ) to Ulaanbaatar (Sergelen) ( Mongolia )?

A one-way nonstop (direct) flight between Reguengos de Monsaraz and Ulaanbaatar (Sergelen) takes around 12 hours 4 minutes.

Estimated flight time from Reguengos de Monsaraz Airstrip, Reguengos de Monsaraz, Portugal to Ulaanbaatar Chinggis Khaan International Airport, Ulaanbaatar (Sergelen), Mongolia is 12 hours 4 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		8457 km
Statute Miles		5255 miles
Nautical Miles		4564 nm
Avg. Time of Flight		12 hours 4 minutes

Reguengos de Monsaraz Airstrip to Ulaanbaatar Chinggis Khaan International Airport Flight Route Map - to UBN Flight Path

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

Click to see flight route on Google Map between Reguengos de Monsaraz, Portugal and Ulaanbaatar (Sergelen), Mongolia. .

Nonstop flight route between Reguengos de Monsaraz, Portugal and Ulaanbaatar (Sergelen), Mongolia.

Time Difference Between the Airports • - UBN

Time difference between Reguengos de Monsaraz (Portugal) and Ulaanbaatar (Sergelen) (Mongolia) is 8 Hours.
Ulaanbaatar (Sergelen) time is 8 Hours ahead of Reguengos de Monsaraz.

Location	Local Time
Reguengos de Monsaraz (Portugal)	2026-11-02, 05:43:46 WET
Ulaanbaatar (Sergelen) (Mongolia)	2026-11-02, 13:43:46 +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

Reguengos de Monsaraz Airstrip ( / ) Reguengos de Monsaraz, Portugal

Destination

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