# Distance between Casper, WY (CPR) and Erie, PA (ERI)

Flight distance from Casper to Erie (Casper–Natrona County International Airport – Erie International Airport) is 1339 miles / 2154 kilometers / 1163 nautical miles. Estimated flight time is 3 hours 2 minutes.

Driving distance from Casper (CPR) to Erie (ERI) is 1571 miles / 2528 kilometers and travel time by car is about 26 hours 20 minutes.

## Map of flight path and driving directions from Casper to Erie.

Shortest flight path between Casper–Natrona County International Airport (CPR) and Erie International Airport (ERI).

## How far is Erie from Casper?

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

Vincenty's formula (applied above)
• 1338.529 miles
• 2154.153 kilometers
• 1163.149 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
• 1334.998 miles
• 2148.471 kilometers
• 1160.081 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 Erie International Airport
City: Erie, PA
Country: United States
IATA Code: ERI
ICAO Code: KERI
Coordinates: 42°4′55″N, 80°10′34″W

## Time difference and current local times

The time difference between Casper and Erie is 2 hours. Erie is 2 hours ahead of Casper.

MDT

EDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 166 kg (366 pounds).

## Frequent Flyer Miles Calculator

Casper (CPR) → Erie (ERI).

Distance:
1339
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
1339

Round trip?