Air Miles Calculator

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

Flight distance from Casper to Seattle (Casper–Natrona County International Airport – Seattle Boeing Field) is 834 miles / 1343 kilometers / 725 nautical miles. Estimated flight time is 2 hours 4 minutes.

Driving distance from Casper (CPR) to Seattle (BFI) is 1104 miles / 1776 kilometers and travel time by car is about 18 hours 6 minutes.

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).

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 Seattle 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

Time difference and current local times

The time difference between Casper and Seattle is 1 hour. Seattle is 1 hour behind Casper.

Time Difference

Casper, WY

 MDT

Seattle, WA

 PDT

Carbon dioxide emissions

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

Frequent Flyer Miles Calculator

Casper (CPR) → Seattle (BFI).

Distance:
834
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
834

Round trip?