The flight distance from Ngot Nzoungou Airport (DIS) in Dolisie, Congo to Washington Dulles International Airport (IAD) in Washington, United States is 10,315 kilometers (6,410 miles / 5,570 nautical miles). The estimated flight time for this route is approximately 13h, flying northwest at a heading of 309°.

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

Time zone information: When it's 23:20 in Dolisie, it's 17:20 in Washington. With a 6-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

The return flight from Washington (IAD) to Dolisie (DIS) follows a heading of 93° (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 Ngot Nzoungou Airport (DIS) and Washington Dulles International Airport (IAD) detail pages, or use our flight duration calculator to compare other routes.