The flight distance from Salt Lake City International Airport (SLC) in Salt Lake City, United States to Samui Airport (USM) in Na Thon (Ko Samui Island), Thailand is 13,525 kilometers (8,404 miles / 7,303 nautical miles). The estimated flight time for this route is approximately 17h, flying northwest at a heading of 322°.

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 United States with Thailand. It is an intercontinental flight between North America and Asia. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 18:41 in Salt Lake City, it's 08:41 in Na Thon (Ko Samui Island). With a 14-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

There is a significant elevation difference of 4,167 feet between the two airports. Samui Airport sits lower than Salt Lake City International Airport.

The return flight from Na Thon (Ko Samui Island) (USM) to Salt Lake City (SLC) follows a heading of 28° (north northeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Salt Lake City International Airport (SLC) and Samui Airport (USM) detail pages, or use our flight duration calculator to compare other routes.