# Distance between Casper, WY (CPR) and Emmonak, AK (EMK)

Flight distance from Casper to Emmonak (Casper–Natrona County International Airport – Emmonak Airport) is 2665 miles / 4290 kilometers / 2316 nautical miles. Estimated flight time is 5 hours 32 minutes.

Driving distance from Casper (CPR) to Emmonak (EMK) is 3619 miles / 5825 kilometers and travel time by car is about 136 hours 42 minutes.

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

Shortest flight path between Casper–Natrona County International Airport (CPR) and Emmonak Airport (EMK).

## How far is Emmonak from Casper?

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

Vincenty's formula (applied above)
• 2665.486 miles
• 4289.683 kilometers
• 2316.244 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
• 2658.706 miles
• 4278.773 kilometers
• 2310.352 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 Emmonak Airport
City: Emmonak, AK
Country: United States
IATA Code: EMK
ICAO Code: PAEM
Coordinates: 62°47′9″N, 164°29′27″W

## Time difference and current local times

The time difference between Casper and Emmonak is 2 hours. Emmonak is 2 hours behind Casper.

MDT

AKDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 295 kg (649 pounds).

## Frequent Flyer Miles Calculator

Casper (CPR) → Emmonak (EMK).

Distance:
2665
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
2665

Round trip?