Distance From Naval Hospital Okinawa Heliport to Ulaanbaatar Chinggis Khaan International Airport

The distance from Naval Hospital Okinawa Heliport () to Ulaanbaatar Chinggis Khaan International Airport (UBN) is 1862 miles or 2997 kilometers or 1617 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 Chatan ( Japan ) to Ulaanbaatar (Sergelen) ( Mongolia )?

A one-way nonstop (direct) flight between Chatan and Ulaanbaatar (Sergelen) takes around 4 hours 16 minutes.

Estimated flight time from Naval Hospital Okinawa Heliport, Chatan, Japan to Ulaanbaatar Chinggis Khaan International Airport, Ulaanbaatar (Sergelen), Mongolia is 4 hours 16 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		2997 km
Statute Miles		1862 miles
Nautical Miles		1617 nm
Avg. Time of Flight		4 hours 16 minutes

Naval Hospital Okinawa Heliport to Ulaanbaatar Chinggis Khaan International Airport Flight Route Map - to UBN Flight Path

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

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

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

Time Difference Between the Airports • - UBN

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

Location	Local Time
Chatan (Japan)	2026-05-05, 08:52:22 JST
Ulaanbaatar (Sergelen) (Mongolia)	2026-05-05, 07:52:22 +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

Naval Hospital Okinawa Heliport ( / ) Chatan, Japan

Destination

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