The flight distance from Denver International Airport (DEN) in Denver, United States to Fort Smith Regional Airport (FSM) in Fort Smith, United States is 1,036 kilometers (644 miles / 560 nautical miles). The estimated flight time for this route is approximately 2h, flying east southeast at a heading of 116°.

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 19:58 in Denver, it's 20:58 in Fort Smith.

There is a significant elevation difference of 4,965 feet between the two airports. Fort Smith Regional Airport sits lower than Denver International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Fort Smith (FSM) to Denver (DEN) follows a heading of 302° (west northwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Denver International Airport (DEN) and Fort Smith Regional Airport (FSM) detail pages, or use our flight duration calculator to compare other routes.