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How far is Okushiri Island from Ulaanbaatar?

The distance between Ulaanbaatar (Buyant-Ukhaa International Airport) and Okushiri Island (Okushiri Airport) is 1637 miles / 2635 kilometers / 1423 nautical miles.

The driving distance from Ulaanbaatar (ULN) to Okushiri Island (OIR) is 3089 miles / 4971 kilometers, and travel time by car is about 77 hours 34 minutes.

Buyant-Ukhaa International Airport – Okushiri Airport

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1637
Miles
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2635
Kilometers
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1423
Nautical miles

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Distance from Ulaanbaatar to Okushiri Island

There are several ways to calculate the distance from Ulaanbaatar to Okushiri Island. Here are two standard methods:

Vincenty's formula (applied above)
  • 1637.138 miles
  • 2634.718 kilometers
  • 1422.634 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.

Haversine formula
  • 1632.905 miles
  • 2627.906 kilometers
  • 1418.956 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

How long does it take to fly from Ulaanbaatar to Okushiri Island?

The estimated flight time from Buyant-Ukhaa International Airport to Okushiri Airport is 3 hours and 35 minutes.

Flight carbon footprint between Buyant-Ukhaa International Airport (ULN) and Okushiri Airport (OIR)

On average, flying from Ulaanbaatar to Okushiri Island generates about 188 kg of CO2 per passenger, and 188 kilograms equals 415 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Ulaanbaatar to Okushiri Island

See the map of the shortest flight path between Buyant-Ukhaa International Airport (ULN) and Okushiri Airport (OIR).

Airport information

Origin Buyant-Ukhaa International Airport
City: Ulaanbaatar
Country: Mongolia Flag of Mongolia
IATA Code: ULN
ICAO Code: ZMUB
Coordinates: 47°50′35″N, 106°46′1″E
Destination Okushiri Airport
City: Okushiri Island
Country: Japan Flag of Japan
IATA Code: OIR
ICAO Code: RJEO
Coordinates: 42°4′18″N, 139°25′58″E