Air Miles Calculator

Distance between Casper, WY (CPR) and St Louis, MO (STL)

Flight distance from Casper to St Louis (Casper–Natrona County International Airport – St. Louis Lambert International Airport) is 889 miles / 1431 kilometers / 773 nautical miles. Estimated flight time is 2 hours 11 minutes.

Driving distance from Casper (CPR) to St Louis (STL) is 1056 miles / 1699 kilometers and travel time by car is about 17 hours 28 minutes.

Map of flight path and driving directions from Casper to St Louis.

Shortest flight path between Casper–Natrona County International Airport (CPR) and St. Louis Lambert International Airport (STL).

How far is St Louis from Casper?

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

Vincenty's formula (applied above)
  • 889.351 miles
  • 1431.272 kilometers
  • 772.825 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
  • 887.443 miles
  • 1428.201 kilometers
  • 771.167 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 Flag of United States
IATA Code: CPR
ICAO Code: KCPR
Coordinates: 42°54′28″N, 106°27′50″W

B St. Louis Lambert International Airport
City: St Louis, MO
Country: United States Flag of United States
IATA Code: STL
ICAO Code: KSTL
Coordinates: 38°44′55″N, 90°22′12″W

Time difference and current local times

The time difference between Casper and St Louis is 1 hour. St Louis is 1 hour ahead of Casper.

Time Difference

Casper, WY

 MST

St Louis, MO

 CST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 143 kg (315 pounds).

Frequent Flyer Miles Calculator

Casper (CPR) → St Louis (STL).

Distance:
889
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
889

Round trip?