The flight distance from George Bush Intcntl/Houston Airport (IAH) in Houston, United States to Oamaru Airport (OAM) in Oamaru Airport, New Zealand is 12,570 kilometers (7,811 miles / 6,787 nautical miles). The estimated flight time for this route is approximately 16h, 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 18:55 in Houston, it's 13:55 in Oamaru Airport. With a 19-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 Oamaru Airport (OAM) to Houston (IAH) follows a heading of 70° (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 George Bush Intcntl/Houston Airport (IAH) and Oamaru Airport (OAM) detail pages, or use our flight duration calculator to compare other routes.