The flight distance from Christchurch International Airport (CHC) in Christchurch, New Zealand to South Big Horn County Airport (GEY) in Greybull, United States is 12,541 kilometers (7,793 miles / 6,772 nautical miles). The estimated flight time for this route is approximately 16h, flying northeast at a heading of 49°.

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 19:28 in Christchurch, it's 01:28 in Greybull. 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 3,819 feet between the two airports. South Big Horn County Airport sits higher than Christchurch International Airport.

The return flight from Greybull (GEY) to Christchurch (CHC) follows a heading of 231° (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 Christchurch International Airport (CHC) and South Big Horn County Airport (GEY) detail pages, or use our flight duration calculator to compare other routes.