The flight distance from O. R. Tambo International Airport (JNB) in Johannesburg, South Africa to Sihanoukville International Airport (KOS) in Sihanukville, Cambodia is 9,102 kilometers (5,656 miles / 4,915 nautical miles). The estimated flight time for this route is approximately 12h, flying east northeast at a heading of 74°.

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

Time zone information: When it's 21:44 in Johannesburg, it's 02:44 in Sihanukville. The 5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

There is a significant elevation difference of 5,525 feet between the two airports. Sihanoukville International Airport sits lower than O. R. Tambo International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

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