The flight distance from Washington Dulles International Airport (IAD) in Washington, United States to Souanke Airport (SOE) in Souanke, Congo is 10,004 kilometers (6,216 miles / 5,402 nautical miles). The estimated flight time for this route is approximately 13h, flying east at a heading of 87°.

This is an ultra-long-haul route, one of the longest in aviation. It requires wide-body aircraft with extended range capability such as the Airbus A350-900ULR or Boeing 777-200LR. Passengers should prepare for an extended flight with multiple meal services.

This is an international route connecting United States with Congo. It is an intercontinental flight between North America and Africa. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 00:16 in Washington, it's 05:16 in Souanke. The 5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

There is a significant elevation difference of 1,410 feet between the two airports. Souanke Airport sits higher than Washington Dulles International Airport.

The return flight from Souanke (SOE) to Washington (IAD) follows a heading of 309° (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 Washington Dulles International Airport (IAD) and Souanke Airport (SOE) detail pages, or use our flight duration calculator to compare other routes.