# Distance between Casper, WY (CPR) and Hilo, HI (ITO)

Flight distance from Casper to Hilo (Casper–Natrona County International Airport – Hilo International Airport) is 3229 miles / 5197 kilometers / 2806 nautical miles. Estimated flight time is 6 hours 36 minutes.

## Map of flight path from Casper to Hilo.

Shortest flight path between Casper–Natrona County International Airport (CPR) and Hilo International Airport (ITO).

## How far is Hilo from Casper?

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

Vincenty's formula (applied above)
• 3229.155 miles
• 5196.821 kilometers
• 2806.059 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
• 3226.484 miles
• 5192.523 kilometers
• 2803.738 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 Hilo International Airport
City: Hilo, HI
Country: United States
IATA Code: ITO
ICAO Code: PHTO
Coordinates: 19°43′17″N, 155°2′52″W

## Time difference and current local times

The time difference between Casper and Hilo is 4 hours. Hilo is 4 hours behind Casper.

MDT

HST

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 362 kg (797 pounds).

## Frequent Flyer Miles Calculator

Casper (CPR) → Hilo (ITO).

Distance:
3229
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
3229

Round trip?