# Distance between Casper, WY (CPR) and Grand Island, NE (GRI)

Flight distance from Casper to Grand Island (Casper–Natrona County International Airport – Central Nebraska Regional Airport) is 441 miles / 709 kilometers / 383 nautical miles. Estimated flight time is 1 hour 20 minutes.

Driving distance from Casper (CPR) to Grand Island (GRI) is 554 miles / 892 kilometers and travel time by car is about 8 hours 52 minutes.

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

Shortest flight path between Casper–Natrona County International Airport (CPR) and Central Nebraska Regional Airport (GRI).

## How far is Grand Island from Casper?

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

Vincenty's formula (applied above)
• 440.816 miles
• 709.424 kilometers
• 383.058 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
• 439.816 miles
• 707.815 kilometers
• 382.190 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

City: Grand Island, NE
Country: United States
IATA Code: GRI
ICAO Code: KGRI
Coordinates: 40°58′2″N, 98°18′34″W

## Time difference and current local times

The time difference between Casper and Grand Island is 1 hour. Grand Island is 1 hour ahead of Casper.

MST

CST

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 90 kg (198 pounds).

## Frequent Flyer Miles Calculator

Casper (CPR) → Grand Island (GRI).

Distance:
441
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
441

Round trip?