The flight distance from Kigali International Airport (KGL) in Kigali, Rwanda to Castle Airport (MER) in Atwater, United States is 15,069 kilometers (9,364 miles / 8,137 nautical miles). The estimated flight time for this route is approximately 19h, flying north northwest at a heading of 326°.

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 14:59 in Kigali, it's 04:59 in Atwater. With a 10-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 4,669 feet between the two airports. Castle Airport sits lower than Kigali International Airport.

The return flight from Atwater (MER) to Kigali (KGL) follows a heading of 44° (northeast). 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 Castle Airport (MER) detail pages, or use our flight duration calculator to compare other routes.