The flight distance from Mount Hagen Kagamuga Airport (HGU) in Mount Hagen, Papua New Guinea to St Louis Lambert International Airport (STL) in St Louis, United States is 13,434 kilometers (8,347 miles / 7,254 nautical miles). The estimated flight time for this route is approximately 17h, flying northeast at a heading of 48°.

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 Papua New Guinea with United States. It is an intercontinental flight between Oceania and North America. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 17:49 in Mount Hagen, it's 01:49 in St Louis. With a 16-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 4,771 feet between the two airports. St Louis Lambert International Airport sits lower than Mount Hagen Kagamuga Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from St Louis (STL) to Mount Hagen (HGU) follows a heading of 289° (west 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 Mount Hagen Kagamuga Airport (HGU) and St Louis Lambert International Airport (STL) detail pages, or use our flight duration calculator to compare other routes.