The flight distance from Christchurch International Airport (CHC) in Christchurch, New Zealand to Sihanoukville International Airport (KOS) in Sihanukville, Cambodia is 9,174 kilometers (5,700 miles / 4,953 nautical miles). The estimated flight time for this route is approximately 12h, flying west northwest at a heading of 292°.

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 06:01 in Christchurch, it's 01:01 in Sihanukville. The 5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from Sihanukville (KOS) 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 Sihanoukville International Airport (KOS) detail pages, or use our flight duration calculator to compare other routes.