The flight distance from Barcelona International Airport (BCN) in Barcelona, Spain to Samui Airport (USM) in Na Thon (Ko Samui Island), Thailand is 9,965 kilometers (6,192 miles / 5,381 nautical miles). The estimated flight time for this route is approximately 13h, flying east northeast at a heading of 78°.

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 Spain with Thailand. 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 02:56 in Barcelona, it's 07:56 in Na Thon (Ko Samui Island). The 5-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

The return flight from Na Thon (Ko Samui Island) (USM) to Barcelona (BCN) follows a heading of 312° (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 Barcelona International Airport (BCN) and Samui Airport (USM) detail pages, or use our flight duration calculator to compare other routes.