Map of flight path and driving directions from Casper to Seattle.
Shortest flight path between Casper–Natrona County International Airport (CPR) and Seattle Boeing Field (BFI).
How far is Seattle from Casper?
There are several ways to calculate distances between Casper and Seattle. 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).
Time difference and current local times
The time difference between Casper and Seattle is 1 hour. Seattle is 1 hour behind Casper.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 138 kg (304 pounds).
Frequent Flyer Miles Calculator
Casper (CPR) → Seattle (BFI).