The flight distance from Washington Dulles International Airport (IAD) in Washington, United States to Principe Airport (PCP) in Principe Airport, São Tomé and Príncipe is 9,451 kilometers (5,873 miles / 5,103 nautical miles). The estimated flight time for this route is approximately 12h, flying east at a heading of 92°.

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 São Tomé and Príncipe. 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 19:12 in Washington, it's 00:12 in Principe Airport. The 5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from Principe Airport (PCP) 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 Principe Airport (PCP) detail pages, or use our flight duration calculator to compare other routes.