# Distance between Casper, WY (CPR) and Grayling, AK (KGX)

Flight distance from Casper to Grayling (Casper–Natrona County International Airport – Grayling Airport) is 2527 miles / 4066 kilometers / 2196 nautical miles. Estimated flight time is 5 hours 17 minutes.

Driving distance from Casper (CPR) to Grayling (KGX) is 3382 miles / 5442 kilometers and travel time by car is about 111 hours 9 minutes.

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

Shortest flight path between Casper–Natrona County International Airport (CPR) and Grayling Airport (KGX).

## How far is Grayling from Casper?

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

Vincenty's formula (applied above)
• 2526.693 miles
• 4066.318 kilometers
• 2195.636 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
• 2520.457 miles
• 4056.283 kilometers
• 2190.218 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 Grayling Airport
City: Grayling, AK
Country: United States
IATA Code: KGX
ICAO Code: PAGX
Coordinates: 62°53′42″N, 160°3′58″W

## Time difference and current local times

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

MDT

AKDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 278 kg (614 pounds).

## Frequent Flyer Miles Calculator

Casper (CPR) → Grayling (KGX).

Distance:
2527
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
2527

Round trip?