The flight distance from Kigali International Airport (KGL) in Kigali, Rwanda to St Mary's Airport (KSM) in St Mary'S, United States is 13,240 kilometers (8,227 miles / 7,149 nautical miles). The estimated flight time for this route is approximately 17h, flying north at a heading of 7°.

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 Rwanda 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 14:57 in Kigali, it's 03:57 in St Mary'S. With a 11-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 4,545 feet between the two airports. St Mary's Airport sits lower than Kigali International Airport.

The return flight from St Mary'S (KSM) to Kigali (KGL) follows a heading of 345° (north 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 Kigali International Airport (KGL) and St Mary's Airport (KSM) detail pages, or use our flight duration calculator to compare other routes.