The flight distance from Washington Dulles International Airport (IAD) in Washington, United States to Southwest Wyoming Regional Airport (RKS) in Rock Springs, United States is 2,681 kilometers (1,666 miles / 1,448 nautical miles). The estimated flight time for this route is approximately 4h, flying west northwest at a heading of 287°.

This is a medium-haul route that may be operated by either narrow-body or wide-body aircraft depending on demand. Passengers can expect a meal service on most carriers.

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 2-hour time difference between the two cities.

Time zone information: When it's 07:47 in Washington, it's 05:47 in Rock Springs.

There is a significant elevation difference of 6,452 feet between the two airports. Southwest Wyoming Regional Airport sits higher than Washington Dulles International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Rock Springs (RKS) to Washington (IAD) follows a heading of 86° (east). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Washington Dulles International Airport (IAD) and Southwest Wyoming Regional Airport (RKS) detail pages, or use our flight duration calculator to compare other routes.