Distance From Osakikamijima Heliport to Ulaanbaatar Chinggis Khaan International Airport

The distance from Osakikamijima Heliport () to Ulaanbaatar Chinggis Khaan International Airport (UBN) is 1633 miles or 2628 kilometers or 1419 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.

---

How long does it take to travel from Osakikamijima ( Japan ) to Ulaanbaatar (Sergelen) ( Mongolia )?

A one-way nonstop (direct) flight between Osakikamijima and Ulaanbaatar (Sergelen) takes around 3 hours 45 minutes.

Estimated flight time from Osakikamijima Heliport, Osakikamijima, Japan to Ulaanbaatar Chinggis Khaan International Airport, Ulaanbaatar (Sergelen), Mongolia is 3 hours 45 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		2628 km
Statute Miles		1633 miles
Nautical Miles		1419 nm
Avg. Time of Flight		3 hours 45 minutes

Osakikamijima Heliport to Ulaanbaatar Chinggis Khaan International Airport Flight Route Map - to UBN Flight Path

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

Click to see flight route on Google Map between Osakikamijima, Japan and Ulaanbaatar (Sergelen), Mongolia. .

Nonstop flight route between Osakikamijima, Japan and Ulaanbaatar (Sergelen), Mongolia.

Time Difference Between the Airports • - UBN

Time difference between Osakikamijima (Japan) and Ulaanbaatar (Sergelen) (Mongolia) is 1 Hours.
Ulaanbaatar (Sergelen) time is 1 Hours behind Osakikamijima.

Location	Local Time
Osakikamijima (Japan)	2026-06-19, 03:55:06 JST
Ulaanbaatar (Sergelen) (Mongolia)	2026-06-19, 02:55:06 +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

Osakikamijima Heliport ( / ) Osakikamijima, Japan

Destination

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