The flight distance from Seattle-Tacoma International Airport (SEA) in Seattle, United States to Seronera Airport (SEU) in Seronera, Tanzania is 14,550 kilometers (9,041 miles / 7,856 nautical miles). The estimated flight time for this route is approximately 18h, flying north northeast at a heading of 31°.

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 Tanzania. 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 10:11 in Seattle, it's 21:11 in Seronera. With a 11-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 4,648 feet between the two airports. Seronera Airport sits higher than Seattle-Tacoma International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Seronera (SEU) to Seattle (SEA) follows a heading of 340° (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 Seattle-Tacoma International Airport (SEA) and Seronera Airport (SEU) detail pages, or use our flight duration calculator to compare other routes.