The flight distance from Sihanoukville International Airport (KOS) in Sihanukville, Cambodia to King Khaled International Airport (RUH) in Riyadh, Saudi Arabia is 6,193 kilometers (3,848 miles / 3,344 nautical miles). The estimated flight time for this route is approximately 8h, flying west northwest at a heading of 293°.

This is a long-haul route typically operated by wide-body aircraft such as the Boeing 777 or Airbus A350. Full meal service, in-flight entertainment, and comfort amenities are standard.

This is an international route connecting Cambodia with Saudi Arabia. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 09:40 in Sihanukville, it's 05:40 in Riyadh. The 4-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

There is a significant elevation difference of 2,016 feet between the two airports. King Khaled International Airport sits higher than Sihanoukville International Airport.

The return flight from Riyadh (RUH) to Sihanukville (KOS) follows a heading of 94° (east). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

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