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How far is Casper, WY, from Seattle, WA?

The distance between Seattle (Seattle Boeing Field) and Casper (Casper–Natrona County International Airport) is 834 miles / 1343 kilometers / 725 nautical miles.

The driving distance from Seattle (BFI) to Casper (CPR) is 1104 miles / 1776 kilometers, and travel time by car is about 19 hours 18 minutes.

Seattle Boeing Field – Casper–Natrona County International Airport

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834
Miles
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1343
Kilometers
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725
Nautical miles

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Distance from Seattle to Casper

There are several ways to calculate the distance from Seattle to Casper. Here are two standard 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 planet.

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).

How long does it take to fly from Seattle to Casper?

The estimated flight time from Seattle Boeing Field to Casper–Natrona County International Airport is 2 hours and 4 minutes.

Flight carbon footprint between Seattle Boeing Field (BFI) and Casper–Natrona County International Airport (CPR)

On average, flying from Seattle to Casper generates about 138 kg of CO2 per passenger, and 138 kilograms equals 304 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Seattle to Casper

See the map of the shortest flight path between Seattle Boeing Field (BFI) and Casper–Natrona County International Airport (CPR).

Airport information

Origin 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
Destination 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