# Distance between Casper, WY (CPR) and Portland, ME (PWM)

Flight distance from Casper to Portland (Casper–Natrona County International Airport – Portland International Jetport) is 1810 miles / 2913 kilometers / 1573 nautical miles. Estimated flight time is 3 hours 55 minutes.

Driving distance from Casper (CPR) to Portland (PWM) is 2220 miles / 3572 kilometers and travel time by car is about 37 hours 49 minutes.

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

Shortest flight path between Casper–Natrona County International Airport (CPR) and Portland International Jetport (PWM).

## How far is Portland from Casper?

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

Vincenty's formula (applied above)
• 1809.786 miles
• 2912.568 kilometers
• 1572.661 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
• 1804.924 miles
• 2904.743 kilometers
• 1568.436 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 Portland International Jetport
City: Portland, ME
Country: United States
IATA Code: PWM
ICAO Code: KPWM
Coordinates: 43°38′46″N, 70°18′33″W

## Time difference and current local times

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

MST

EST

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 201 kg (443 pounds).

## Frequent Flyer Miles Calculator

Casper (CPR) → Portland (PWM).

Distance:
1810
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
1810

Round trip?