The flight distance from St Louis Lambert International Airport (STL) in St Louis, United States to Tessenei Airport (TES) in Tessenei, Eritrea is 11,884 kilometers (7,385 miles / 6,417 nautical miles). The estimated flight time for this route is approximately 15h, flying northeast at a heading of 54°.

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 Eritrea. 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 09:26 in St Louis, it's 18:26 in Tessenei. 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 1,401 feet between the two airports. Tessenei Airport sits higher than St Louis Lambert International Airport.

The return flight from Tessenei (TES) to St Louis (STL) follows a heading of 319° (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 St Louis Lambert International Airport (STL) and Tessenei Airport (TES) detail pages, or use our flight duration calculator to compare other routes.