The flight distance from St Louis Lambert International Airport (STL) in St Louis, United States to Tezpur Airport (TEZ) in Tezpur Airport, India is 12,729 kilometers (7,909 miles / 6,873 nautical miles). The estimated flight time for this route is approximately 16h, flying north at a heading of 357°.

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 India. It is an intercontinental flight between North America and Asia. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 10:06 in St Louis, it's 21:36 in Tezpur Airport. With a 11.5-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

The return flight from Tezpur Airport (TEZ) to St Louis (STL) follows a heading of 3° (north). 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 Tezpur Airport (TEZ) detail pages, or use our flight duration calculator to compare other routes.