The flight distance from Masslo Airport (MZX) in Masslo, Ethiopia to Seattle-Tacoma International Airport (SEA) in Seattle, United States is 13,771 kilometers (8,557 miles / 7,436 nautical miles). The estimated flight time for this route is approximately 17h, flying north northwest at a heading of 345°.

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 23:50 in Masslo, it's 13:50 in Seattle. 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 3,748 feet between the two airports. Seattle-Tacoma International Airport sits lower than Masslo Airport.

The return flight from Seattle (SEA) to Masslo (MZX) follows a heading of 22° (north 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 Masslo Airport (MZX) and Seattle-Tacoma International Airport (SEA) detail pages, or use our flight duration calculator to compare other routes.