The flight distance from Iringa Airport (IRI) in Nduli, Tanzania to St Louis Lambert International Airport (STL) in St Louis, United States is 13,635 kilometers (8,473 miles / 7,363 nautical miles). The estimated flight time for this route is approximately 17h, flying northwest at a heading of 312°.

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 Tanzania 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 01:32 in Nduli, it's 16:32 in St Louis. 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 4,061 feet between the two airports. St Louis Lambert International Airport sits lower than Iringa Airport.

The return flight from St Louis (STL) to Nduli (IRI) follows a heading of 72° (east 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 Iringa Airport (IRI) and St Louis Lambert International Airport (STL) detail pages, or use our flight duration calculator to compare other routes.