The flight distance from Great Falls International Airport (GTF) in Great Falls, United States to Wellington International Airport (WLG) in Wellington, New Zealand is 12,254 kilometers (7,615 miles / 6,617 nautical miles). The estimated flight time for this route is approximately 15h, flying southwest at a heading of 230°.

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

Time zone information: When it's 06:50 in Great Falls, it's 02:50 in Wellington. With a 20-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 3,639 feet between the two airports. Wellington International Airport sits lower than Great Falls International Airport.

The return flight from Wellington (WLG) to Great Falls (GTF) follows a heading of 44° (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 Great Falls International Airport (GTF) and Wellington International Airport (WLG) detail pages, or use our flight duration calculator to compare other routes.