The flight distance from Ronald Reagan Washington Ntl Airport (DCA) in Washington, United States to Semonkong Airport (SOK) in Semonkong, Lesotho is 13,256 kilometers (8,237 miles / 7,158 nautical miles). The estimated flight time for this route is approximately 17h, flying east southeast at a heading of 106°.

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 Lesotho. 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 09:18 in Washington, it's 16:18 in Semonkong. With a 7-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

There is a significant elevation difference of 7,186 feet between the two airports. Semonkong Airport sits higher than Ronald Reagan Washington Ntl Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Semonkong (SOK) to Washington (DCA) follows a heading of 301° (west 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 Ronald Reagan Washington Ntl Airport (DCA) and Semonkong Airport (SOK) detail pages, or use our flight duration calculator to compare other routes.