The flight distance from Washington Dulles International Airport (IAD) in Washington, United States to Thompson Falls Airport (THM) in Thompson Falls, United States is 3,175 kilometers (1,973 miles / 1,714 nautical miles). The estimated flight time for this route is approximately 5h, flying west northwest at a heading of 300°.

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 07:59 in Washington, it's 05:59 in Thompson Falls.

There is a significant elevation difference of 2,155 feet between the two airports. Thompson Falls Airport sits higher than Washington Dulles International Airport.

The return flight from Thompson Falls (THM) to Washington (IAD) follows a heading of 94° (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 Thompson Falls Airport (THM) detail pages, or use our flight duration calculator to compare other routes.