Nonstop flight route between Casper, Wyoming, United States and Okushiri, Okushiri Island, Hokkaido, Japan:
Departure Airport:

Arrival Airport:

Distance from CPR to OIR:
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- About this route
- CPR Airport Information
- OIR Airport Information
- Facts about CPR
- Facts about OIR
- Map of Nearest Airports to CPR
- List of Nearest Airports to CPR
- Map of Furthest Airports from CPR
- List of Furthest Airports from CPR
- Map of Nearest Airports to OIR
- List of Nearest Airports to OIR
- Map of Furthest Airports from OIR
- List of Furthest Airports from OIR
About this route:
A direct, nonstop flight between Casper–Natrona County International AirportCasper Army Airfield (CPR), Casper, Wyoming, United States and Okushiri Airport (OIR), Okushiri, Okushiri Island, Hokkaido, Japan would travel a Great Circle distance of 5,283 miles (or 8,502 kilometers).
A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between Casper–Natrona County International AirportCasper Army Airfield and Okushiri Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Casper–Natrona County International AirportCasper Army Airfield and Okushiri Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | CPR / KCPR |
Airport Name: | Casper–Natrona County International AirportCasper Army Airfield |
Location: | Casper, Wyoming, United States |
GPS Coordinates: | 42°54'29"N by 106°27'51"W |
Area Served: | Casper, Wyoming |
Operator/Owner: | Airport Board of Trustees |
Airport Type: | Public |
Elevation: | 5350 feet (1,631 meters) |
# of Runways: | 2 |
View all routes: | Routes from CPR |
More Information: | CPR Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | OIR / RJEO |
Airport Names: |
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Location: | Okushiri, Okushiri Island, Hokkaido, Japan |
GPS Coordinates: | 42°4'18"N by 139°25'58"E |
Operator/Owner: | Hokkaidō Prefecture |
Airport Type: | Public |
Elevation: | 161 feet (49 meters) |
# of Runways: | 1 |
View all routes: | Routes from OIR |
More Information: | OIR Maps & Info |
Facts about Casper–Natrona County International AirportCasper Army Airfield (CPR):
- The closest airport to Casper–Natrona County International AirportCasper Army Airfield (CPR) is Converse County Airport (DGW), which is located 55 miles (89 kilometers) E of CPR.
- Casper–Natrona County International AirportCasper Army Airfield (CPR) has 2 runways.
- Since early 2008 the airport has been in talks with the carriers to increase capacity.
- The 331st was converted to a Very Heavy group in July 1944 and began training for deployment to Twentieth Air Force in the Pacific.
- The furthest airport from Casper–Natrona County International AirportCasper Army Airfield (CPR) is Sir Gaëtan Duval Airport (RRG), which is located 10,731 miles (17,270 kilometers) away in Rodrigues Island, Mauritius.
- Taxi service and car rental agencies are available.
- Because of Casper–Natrona County International AirportCasper Army Airfield's high elevation of 5,350 feet, planes must typically fly at a faster airspeed in order to takeoff or land at CPR. Combined with a high temperature, this could make CPR a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
Facts about Okushiri Airport (OIR):
- The closest airport to Okushiri Airport (OIR) is Hakodate Airport (HKD), which is located 74 miles (120 kilometers) ESE of OIR.
- Okushiri Airport (OIR) currently has only 1 runway.
- The furthest airport from Okushiri Airport (OIR) is Capitán de Corbeta Carlos A. Curbelo International Airport (PDP), which is located 11,508 miles (18,520 kilometers) away in Maldonado/Punta del Este, Maldonado, Uruguay.
- Because of Okushiri Airport's relatively low elevation of 161 feet, planes can take off or land at Okushiri Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- In addition to being known as "Okushiri Airport", other names for OIR include "奥尻空港" and "Okushiri Kūkō".