The flight distance from Washington Dulles International Airport (IAD) in Washington, United States to Lemhi County Airport (SMN) in Salmon, United States is 3,057 kilometers (1,899 miles / 1,651 nautical miles). The estimated flight time for this route is approximately 5h, flying west northwest at a heading of 295°.

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 09:07 in Washington, it's 07:07 in Salmon.

There is a significant elevation difference of 3,732 feet between the two airports. Lemhi County Airport sits higher than Washington Dulles International Airport.

The return flight from Salmon (SMN) to Washington (IAD) follows a heading of 90° (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 Lemhi County Airport (SMN) detail pages, or use our flight duration calculator to compare other routes.