The flight distance from Christchurch International Airport (CHC) in Christchurch, New Zealand to Siem Reap Angkor International Airport (SAI) in Siem Reap, Cambodia is 9,358 kilometers (5,815 miles / 5,053 nautical miles). The estimated flight time for this route is approximately 12h, flying west northwest at a heading of 295°.

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 Cambodia. It is an intercontinental flight between Oceania and Asia. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 10:46 in Christchurch, it's 05:46 in Siem Reap. The 5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from Siem Reap (SAI) to Christchurch (CHC) follows a heading of 137° (southeast). 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 Siem Reap Angkor International Airport (SAI) detail pages, or use our flight duration calculator to compare other routes.