The flight distance from Geneva Cointrin International Airport (GVA) in Geneva, Switzerland to Sihanoukville International Airport (KOS) in Sihanukville, Cambodia is 9,730 kilometers (6,046 miles / 5,254 nautical miles). The estimated flight time for this route is approximately 12h, flying east northeast at a heading of 77°.

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

Time zone information: When it's 05:48 in Geneva, it's 10:48 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 1,378 feet between the two airports. Sihanoukville International Airport sits lower than Geneva Cointrin International Airport.

The return flight from Sihanukville (KOS) to Geneva (GVA) follows a heading of 317° (northwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Geneva Cointrin International Airport (GVA) and Sihanoukville International Airport (KOS) detail pages, or use our flight duration calculator to compare other routes.