The flight distance from Bole International Airport (ADD) in Addis Ababa, Ethiopia to Montgomery County Airpark (GAI) in Gaithersburg, United States is 11,530 kilometers (7,165 miles / 6,226 nautical miles). The estimated flight time for this route is approximately 15h, flying northwest at a heading of 314°.

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 Ethiopia 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 22:47 in Addis Ababa, it's 14:47 in Gaithersburg. With a 8-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 7,091 feet between the two airports. Montgomery County Airpark sits lower than Bole International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Gaithersburg (GAI) to Addis Ababa (ADD) follows a heading of 66° (east 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 Bole International Airport (ADD) and Montgomery County Airpark (GAI) detail pages, or use our flight duration calculator to compare other routes.