Distance From Kaufana Airport to Ulaanbaatar Chinggis Khaan International Airport, EUA - UBN Distance

The distance from Kaufana Airport (EUA) to Ulaanbaatar Chinggis Khaan International Airport (UBN) is 6780 miles or 10911 kilometers or 5888 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 Eua Island ( Tonga ) to Ulaanbaatar (Sergelen) ( Mongolia )?

A one-way nonstop (direct) flight between Eua Island and Ulaanbaatar (Sergelen) takes around 15 hours 35 minutes.

Estimated flight time from Kaufana Airport, Eua Island, Tonga to Ulaanbaatar Chinggis Khaan International Airport, Ulaanbaatar (Sergelen), Mongolia is 15 hours 35 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 • EUA - UBN

Kilometers		10911 km
Statute Miles		6780 miles
Nautical Miles		5888 nm
Avg. Time of Flight		15 hours 35 minutes

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

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

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

Nonstop flight route between Eua Island, Tonga and Ulaanbaatar (Sergelen), Mongolia.

Time Difference Between the Airports • EUA - UBN

Time difference between Eua Island (Tonga) and Ulaanbaatar (Sergelen) (Mongolia) is 5 Hours.
Ulaanbaatar (Sergelen) time is 5 Hours behind Eua Island.

Location	Local Time
Eua Island (Tonga)	2026-10-27, 21:36:51 +13
Ulaanbaatar (Sergelen) (Mongolia)	2026-10-27, 16:36:51 +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

Kaufana Airport (EUA / NFTE) Eua Island, Tonga

Destination

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