The flight distance from Casper/Natrona County International Airport (CPR) in Casper, United States to Seattle-Tacoma International Airport (SEA) in Seattle, United States is 1,338 kilometers (831 miles / 722 nautical miles). The estimated flight time for this route is approximately 3h, flying west northwest at a heading of 298°.

This is a short-haul route typically served by narrow-body aircraft such as the Boeing 737 or Airbus A320 family. In-flight service is usually limited to drinks and light snacks.

This is a domestic route within United States. Both airports operate in the same country, which may simplify travel requirements and documentation. Despite being a domestic route, there is a 1-hour time difference between the two cities.

Time zone information: When it's 21:31 in Casper, it's 20:31 in Seattle.

There is a significant elevation difference of 4,912 feet between the two airports. Seattle-Tacoma International Airport sits lower than Casper/Natrona County International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Seattle (SEA) to Casper (CPR) follows a heading of 106° (east southeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Casper/Natrona County International Airport (CPR) and Seattle-Tacoma International Airport (SEA) detail pages, or use our flight duration calculator to compare other routes.