The flight distance from Castle Airport (MER) in Atwater, United States to Jomo Kenyatta International Airport (NBO) in Nairobi, Kenya is 15,390 kilometers (9,563 miles / 8,310 nautical miles). The estimated flight time for this route is approximately 19h, flying northeast at a heading of 35°.

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 Kenya. 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 23:49 in Atwater, it's 09:49 in Nairobi. 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 5,140 feet between the two airports. Jomo Kenyatta International Airport sits higher than Castle Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Nairobi (NBO) to Atwater (MER) follows a heading of 333° (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 Castle Airport (MER) and Jomo Kenyatta International Airport (NBO) detail pages, or use our flight duration calculator to compare other routes.