Distance From Leros Airport to Ulaanbaatar Chinggis Khaan International Airport, LRS - UBN Distance

The distance from Leros Airport (LRS) to Ulaanbaatar Chinggis Khaan International Airport (UBN) is 3962 miles or 6376 kilometers or 3441 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 Leros Island ( Greece ) to Ulaanbaatar (Sergelen) ( Mongolia )?

A one-way nonstop (direct) flight between Leros Island and Ulaanbaatar (Sergelen) takes around 9 hours 6 minutes.

Estimated flight time from Leros Airport, Leros Island, Greece to Ulaanbaatar Chinggis Khaan International Airport, Ulaanbaatar (Sergelen), Mongolia is 9 hours 6 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 • LRS - UBN

Kilometers		6376 km
Statute Miles		3962 miles
Nautical Miles		3441 nm
Avg. Time of Flight		9 hours 6 minutes

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

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

Click to see flight route on Google Map between Leros Island, Greece and Ulaanbaatar (Sergelen), Mongolia. .

Nonstop flight route between Leros Island, Greece and Ulaanbaatar (Sergelen), Mongolia.

Time Difference Between the Airports • LRS - UBN

Time difference between Leros Island (Greece) and Ulaanbaatar (Sergelen) (Mongolia) is 6 Hours.
Ulaanbaatar (Sergelen) time is 6 Hours ahead of Leros Island.

Location	Local Time
Leros Island (Greece)	2026-11-03, 15:10:05 EET
Ulaanbaatar (Sergelen) (Mongolia)	2026-11-03, 21:10:05 +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

Leros Airport (LRS / LGLE) Leros Island, Greece

Destination

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