Air Miles Calculator

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

Flight distance from Casper to Seattle (Casper–Natrona County International Airport – Seattle–Tacoma International Airport) is 833 miles / 1341 kilometers / 724 nautical miles. Estimated flight time is 2 hours 4 minutes.

Driving distance from Casper (CPR) to Seattle (SEA) is 1106 miles / 1780 kilometers and travel time by car is about 18 hours 9 minutes.

Map of flight path and driving directions from Casper to Seattle.

Shortest flight path between Casper–Natrona County International Airport (CPR) and Seattle–Tacoma International Airport (SEA).

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)
  • 833.088 miles
  • 1340.726 kilometers
  • 723.934 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
  • 831.151 miles
  • 1337.608 kilometers
  • 722.250 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–Tacoma International Airport
City: Seattle, WA
Country: United States Flag of United States
IATA Code: SEA
ICAO Code: KSEA
Coordinates: 47°26′56″N, 122°18′32″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

 MST

Seattle, WA

 PST

Carbon dioxide emissions

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

Frequent Flyer Miles Calculator

Casper (CPR) → Seattle (SEA).

Distance:
833
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
833

Round trip?