The flight distance from San Luis Valley Regional/Bergman Field (ALS) in Alamosa, United States to Seattle-Tacoma International Airport (SEA) in Seattle, United States is 1,743 kilometers (1,083 miles / 941 nautical miles). The estimated flight time for this route is approximately 3h, flying northwest at a heading of 315°.

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 1-hour time difference between the two cities.

Time zone information: When it's 02:22 in Alamosa, it's 01:22 in Seattle.

There is a significant elevation difference of 7,108 feet between the two airports. Seattle-Tacoma 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 Seattle (SEA) to Alamosa (ALS) follows a heading of 124° (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 San Luis Valley Regional/Bergman Field (ALS) and Seattle-Tacoma International Airport (SEA) detail pages, or use our flight duration calculator to compare other routes.