How far is Unalaska, AK, from Casper, WY?

The distance between Casper (Casper–Natrona County International Airport) and Unalaska (Unalaska Airport) is 2776 miles / 4467 kilometers / 2412 nautical miles.

Distance from Casper to Unalaska

There are several ways to calculate the distance from Casper to Unalaska. Here are two standard methods:

Vincenty's formula (applied above)

• 2775.622 miles
• 4466.931 kilometers
• 2411.950 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

• 2767.986 miles
• 4454.641 kilometers
• 2405.314 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 Casper to Unalaska?

The estimated flight time from Casper–Natrona County International Airport to Unalaska Airport is 5 hours and 45 minutes.

What is the time difference between Casper and Unalaska?

The time difference between Casper and Unalaska is 3 hours. Unalaska is 3 hours behind Casper.

Flight carbon footprint between Casper–Natrona County International Airport (CPR) and Unalaska Airport (DUT)

On average, flying from Casper to Unalaska generates about 308 kg of CO2 per passenger, and 308 kilograms equals 678 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Casper to Unalaska

See the map of the shortest flight path between Casper–Natrona County International Airport (CPR) and Unalaska Airport (DUT).

Airport information

Origin	Casper–Natrona County International Airport
City:	Casper, WY
Country:	United States
IATA Code:	CPR
ICAO Code:	KCPR
Coordinates:	42°54′28″N, 106°27′50″W

Destination	Unalaska Airport
City:	Unalaska, AK
Country:	United States
IATA Code:	DUT
ICAO Code:	PADU
Coordinates:	53°54′0″N, 166°32′38″W