The flight distance from King Khaled International Airport (RUH) in Riyadh, Saudi Arabia to Samui Airport (USM) in Na Thon (Ko Samui Island), Thailand is 5,879 kilometers (3,653 miles / 3,175 nautical miles). The estimated flight time for this route is approximately 8h, flying east at a heading of 97°.

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 Saudi Arabia with Thailand. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 05:38 in Riyadh, it's 09:38 in Na Thon (Ko Samui Island). 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 1,985 feet between the two airports. Samui Airport sits lower than King Khaled International Airport.

The return flight from Na Thon (Ko Samui Island) (USM) to Riyadh (RUH) follows a heading of 294° (west 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 King Khaled International Airport (RUH) and Samui Airport (USM) detail pages, or use our flight duration calculator to compare other routes.