The flight distance from San Luis Valley Regional/Bergman Field (ALS) in Alamosa, United States to Washington Dulles International Airport (IAD) in Washington, United States is 2,475 kilometers (1,538 miles / 1,337 nautical miles). The estimated flight time for this route is approximately 4h, flying east northeast at a heading of 77°.

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 12:03 in Alamosa, it's 14:03 in Washington.

There is a significant elevation difference of 7,228 feet between the two airports. Washington Dulles International Airport sits lower than San Luis Valley Regional/Bergman Field. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Washington (IAD) to Alamosa (ALS) follows a heading of 275° (west). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the San Luis Valley Regional/Bergman Field (ALS) and Washington Dulles International Airport (IAD) detail pages, or use our flight duration calculator to compare other routes.