Air Miles Calculator

Distance between Washington D.C. (IAD) and Casper, WY (CPR)

Flight distance from Washington D.C. to Casper (Washington Dulles International Airport – Casper–Natrona County International Airport) is 1535 miles / 2470 kilometers / 1334 nautical miles. Estimated flight time is 3 hours 24 minutes.

Driving distance from Washington D.C. (IAD) to Casper (CPR) is 1824 miles / 2936 kilometers and travel time by car is about 30 hours 45 minutes.

Map of flight path and driving directions from Washington D.C. to Casper.

Shortest flight path between Washington Dulles International Airport (IAD) and Casper–Natrona County International Airport (CPR).

How far is Casper from Washington D.C.?

There are several ways to calculate distances between Washington D.C. and Casper. Here are two common methods:

Vincenty's formula (applied above)
  • 1534.736 miles
  • 2469.919 kilometers
  • 1333.649 nautical miles

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

Haversine formula
  • 1531.007 miles
  • 2463.916 kilometers
  • 1330.408 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).

Airport information


A Washington Dulles International Airport
City: Washington D.C.
Country: United States Flag of United States
IATA Code: IAD
ICAO Code: KIAD
Coordinates: 38°56′40″N, 77°27′20″W

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

Time difference and current local times

The time difference between Washington D.C. and Casper is 2 hours. Casper is 2 hours behind Washington D.C..

Time Difference

Washington D.C.

 EST

Casper, WY

 MST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 182 kg (401 pounds).

Frequent Flyer Miles Calculator

Washington D.C. (IAD) → Casper (CPR).

Distance:
1535
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
1535

Round trip?