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

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

Driving distance from Casper (CPR) to Washington D.C. (IAD) is 1824 miles / 2935 kilometers and travel time by car is about 30 hours 48 minutes.

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

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

## How far is Washington D.C. from Casper?

There are several ways to calculate distances between Casper and Washington D.C.. 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 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

B Washington Dulles International Airport
City: Washington D.C.
Country: United States
Coordinates: 38°56′40″N, 77°27′20″W

## Time difference and current local times

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

MDT

EDT

## Carbon dioxide emissions

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

## Frequent Flyer Miles Calculator

Casper (CPR) → Washington D.C. (IAD).

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

### In total

Total frequent flyer miles:
1535

Round trip?