Air Miles Calculator

Distance between Seattle, WA (BFI) and Casper, WY (CPR)

Distance from Seattle to Casper (Boeing Field – Casper–Natrona County International Airport) is 834 miles / 1343 kilometers / 725 nautical miles.

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).

Flight duration

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.

Time Difference

Seattle
Casper

Seattle, WA

 PDT

Casper, WY

 MDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 138 kg (304 pounds).

Airport information


A Boeing Field
City: Seattle, WA
Country: United States Flag of United States
IATA Code: BFI
ICAO Code: KBFI
Coordinates: 47°31′47″N, 122°18′7″W

B 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

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).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
834
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
834

Round trip?