The flight distance from Henry Post Army Air Field (Fort Sill) Airport (FSI) in Fort Sill, United States to Washington Dulles International Airport (IAD) in Washington, United States is 1,916 kilometers (1,190 miles / 1,034 nautical miles). The estimated flight time for this route is approximately 3h, flying east northeast at a heading of 70°.

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 00:47 in Fort Sill, it's 01:47 in Washington.

The return flight from Washington (IAD) to Fort Sill (FSI) follows a heading of 262° (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 Henry Post Army Air Field (Fort Sill) Airport (FSI) and Washington Dulles International Airport (IAD) detail pages, or use our flight duration calculator to compare other routes.