Nonstop flight route between Casper, Wyoming, United States and Grand Marais, Minnesota, United States:
Departure Airport:

Arrival Airport:

Distance from CPR to GRM:
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- About this route
- CPR Airport Information
- GRM Airport Information
- Facts about CPR
- Facts about GRM
- Map of Nearest Airports to CPR
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- Map of Furthest Airports from CPR
- List of Furthest Airports from CPR
- Map of Nearest Airports to GRM
- List of Nearest Airports to GRM
- Map of Furthest Airports from GRM
- List of Furthest Airports from GRM
About this route:
A direct, nonstop flight between Casper–Natrona County International AirportCasper Army Airfield (CPR), Casper, Wyoming, United States and Grand Marais/Cook County Airport (GRM), Grand Marais, Minnesota, United States would travel a Great Circle distance of 850 miles (or 1,367 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 relatively short distance between Casper–Natrona County International AirportCasper Army Airfield and Grand Marais/Cook County Airport, the route shown on this map most likely still appears to be a straight line.
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: | GRM / KCKC |
Airport Names: |
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Location: | Grand Marais, Minnesota, United States |
GPS Coordinates: | 47°50'17"N by 90°22'59"W |
Area Served: | Grand Marais, Minnesota |
Operator/Owner: | Cook County |
Airport Type: | Public |
Elevation: | 1799 feet (548 meters) |
# of Runways: | 1 |
View all routes: | Routes from GRM |
More Information: | GRM Maps & Info |
Facts about Casper–Natrona County International AirportCasper Army Airfield (CPR):
- The 331st was converted to a Very Heavy group in July 1944 and began training for deployment to Twentieth Air Force in the Pacific.
- 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.
- Near the airport is the NCIA Business Park, which houses over 35 business ranging from manufacturing to aviation.
- Casper–Natrona County International AirportCasper Army Airfield (CPR) has 2 runways.
- Casper had airline flights in the 1930s at Wardwell Field, north of town at 42°54′47″N 106°21′00″W / 42.913°N 106.35°W / 42.913.
- 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.
- 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.
Facts about Grand Marais/Cook County Airport (GRM):
- In addition to being known as "Grand Marais/Cook County Airport", another name for GRM is "CKC".
- The closest airport to Grand Marais/Cook County Airport (GRM) is Thunder Bay International Airport (YQT), which is located 61 miles (99 kilometers) NE of GRM.
- The furthest airport from Grand Marais/Cook County Airport (GRM) is Margaret River Airport (MGV), which is located 10,808 miles (17,393 kilometers) away in Margaret River, Western Australia, Australia.
- Grand Marais/Cook County Airport (GRM) currently has only 1 runway.
- Grand Marais/Cook County Airport is a county-owned, public-use airport located seven nautical miles northwest of the central business district of Grand Marais, a city in Cook County, Minnesota, United States.