# Distance between Casper, WY (CPR) and Thunder Bay (YQT)

Flight distance from Casper to Thunder Bay (Casper–Natrona County International Airport – Thunder Bay International Airport) is 909 miles / 1464 kilometers / 790 nautical miles. Estimated flight time is 2 hours 13 minutes.

Driving distance from Casper (CPR) to Thunder Bay (YQT) is 1176 miles / 1892 kilometers and travel time by car is about 20 hours 19 minutes.

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

Shortest flight path between Casper–Natrona County International Airport (CPR) and Thunder Bay International Airport (YQT).

## How far is Thunder Bay from Casper?

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

Vincenty's formula (applied above)
• 909.432 miles
• 1463.589 kilometers
• 790.275 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
• 907.377 miles
• 1460.282 kilometers
• 788.489 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 Thunder Bay International Airport
City: Thunder Bay
IATA Code: YQT
ICAO Code: CYQT
Coordinates: 48°22′18″N, 89°19′26″W

## Time difference and current local times

The time difference between Casper and Thunder Bay is 2 hours. Thunder Bay is 2 hours ahead of Casper.

MST

EST

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 144 kg (318 pounds).

## Frequent Flyer Miles Calculator

Casper (CPR) → Thunder Bay (YQT).

Distance:
909
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
909

Round trip?