The flight distance from Mossendjo Airport (MSX) in Mossendjo, Congo to Seattle-Tacoma International Airport (SEA) in Seattle, United States is 13,458 kilometers (8,363 miles / 7,267 nautical miles). The estimated flight time for this route is approximately 17h, flying 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 Congo 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 00:47 in Mossendjo, it's 15:47 in Seattle. With a 9-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 1,087 feet between the two airports. Seattle-Tacoma International Airport sits lower than Mossendjo Airport.

The return flight from Seattle (SEA) to Mossendjo (MSX) follows a heading of 55° (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 Mossendjo Airport (MSX) and Seattle-Tacoma International Airport (SEA) detail pages, or use our flight duration calculator to compare other routes.