Nonstop flight route between Koyukuk, Alaska, United States and Casper, Wyoming, United States:
Departure Airport:

Arrival Airport:

Distance from KYU to CPR:
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- About this route
- KYU Airport Information
- CPR Airport Information
- Facts about KYU
- Facts about CPR
- Map of Nearest Airports to KYU
- List of Nearest Airports to KYU
- Map of Furthest Airports from KYU
- List of Furthest Airports from KYU
- Map of Nearest Airports to CPR
- List of Nearest Airports to CPR
- Map of Furthest Airports from CPR
- List of Furthest Airports from CPR
About this route:
A direct, nonstop flight between Koyukuk Airport (KYU), Koyukuk, Alaska, United States and Casper–Natrona County International AirportCasper Army Airfield (CPR), Casper, Wyoming, United States would travel a Great Circle distance of 2,474 miles (or 3,982 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 Koyukuk Airport and Casper–Natrona County International AirportCasper Army Airfield, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | KYU / PFKU |
Airport Name: | Koyukuk Airport |
Location: | Koyukuk, Alaska, United States |
GPS Coordinates: | 64°52'32"N by 157°43'50"W |
Area Served: | Koyukuk, Alaska |
Operator/Owner: | State of Alaska DOT&PF - Northern Region |
Airport Type: | Public |
Elevation: | 149 feet (45 meters) |
# of Runways: | 1 |
View all routes: | Routes from KYU |
More Information: | KYU Maps & Info |
Arrival 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 |
Facts about Koyukuk Airport (KYU):
- The closest airport to Koyukuk Airport (KYU) is Nulato Airport (NUL), which is located only 14 miles (23 kilometers) SW of KYU.
- The furthest airport from Koyukuk Airport (KYU) is George Airport (GRJ), which is located 10,304 miles (16,583 kilometers) away in George, South Africa.
- Koyukuk Airport is a state-owned public-use airport located in Koyukuk, a city in the Yukon-Koyukuk Census Area of the U.S.
- Koyukuk Airport (KYU) currently has only 1 runway.
- Because of Koyukuk Airport's relatively low elevation of 149 feet, planes can take off or land at Koyukuk 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.
Facts about Casper–Natrona County International AirportCasper Army Airfield (CPR):
- 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 airport hopes to bring fares down.
- 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.
- 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.
- Taxi service and car rental agencies are available.