The flight distance from Bole International Airport (ADD) in Addis Ababa, Ethiopia to St Mary's Airport (KSM) in St Mary'S, United States is 11,888 kilometers (7,387 miles / 6,419 nautical miles). The estimated flight time for this route is approximately 15h, flying north at a heading of 11°.

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 18:12 in Addis Ababa, it's 06:12 in St Mary'S. With a 12-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 7,316 feet between the two airports. St Mary's Airport sits lower than Bole International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from St Mary'S (KSM) to Addis Ababa (ADD) follows a heading of 337° (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 Bole International Airport (ADD) and St Mary's Airport (KSM) detail pages, or use our flight duration calculator to compare other routes.