The flight distance from Glentanner Airport (GTN) in Glentanner Station, New Zealand to Washington Dulles International Airport (IAD) in Washington, United States is 14,506 kilometers (9,014 miles / 7,833 nautical miles). The estimated flight time for this route is approximately 18h, flying east northeast at a heading of 71°.

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 New Zealand 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 18:10 in Glentanner Station, it's 00:10 in Washington. With a 18-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 1,512 feet between the two airports. Washington Dulles International Airport sits lower than Glentanner Airport.

The return flight from Washington (IAD) to Glentanner Station (GTN) follows a heading of 241° (west southwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Glentanner Airport (GTN) and Washington Dulles International Airport (IAD) detail pages, or use our flight duration calculator to compare other routes.