# Distance between Casper, WY (CPR) and Saint John (YSJ)

Flight distance from Casper to Saint John (Casper–Natrona County International Airport – Saint John Airport) is 2004 miles / 3225 kilometers / 1741 nautical miles. Estimated flight time is 4 hours 17 minutes.

Driving distance from Casper (CPR) to Saint John (YSJ) is 2533 miles / 4077 kilometers and travel time by car is about 43 hours 48 minutes.

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

Shortest flight path between Casper–Natrona County International Airport (CPR) and Saint John Airport (YSJ).

## How far is Saint John from Casper?

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

Vincenty's formula (applied above)
• 2003.727 miles
• 3224.687 kilometers
• 1741.191 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
• 1998.290 miles
• 3215.936 kilometers
• 1736.467 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 Saint John Airport
City: Saint John
IATA Code: YSJ
ICAO Code: CYSJ
Coordinates: 45°18′57″N, 65°53′25″W

## Time difference and current local times

The time difference between Casper and Saint John is 3 hours. Saint John is 3 hours ahead of Casper.

MST

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## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 218 kg (481 pounds).

## Frequent Flyer Miles Calculator

Casper (CPR) → Saint John (YSJ).

Distance:
2004
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
2004

Round trip?