How far is Casper from Seattle?
There are several ways to calculate distances between Seattle and Casper. Here are two common methods:Vincenty's formula (applied above)
- 834.361 miles
- 1342.774 kilometers
- 725.040 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
- 832.431 miles
- 1339.668 kilometers
- 723.363 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).
Estimated flight time from Boeing Field (BFI) to Casper–Natrona County International Airport (CPR) is 2 hours 4 minutes.
Time difference and current local times
The time difference between Seattle and Casper is 1 hour. Casper is 1 hour ahead of Seattle.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 138 kg (304 pounds).
Seattle to Casper flight path
Shortest flight path between Boeing Field (BFI) and Casper–Natrona County International Airport (CPR).
Frequent Flyer Miles Calculator
Seattle (BFI) → Casper (CPR).