The flight distance from Barcelona International Airport (BCN) in Barcelona, Spain to Chiang Rai International Airport (CEI) in Chiang Rai, Thailand is 9,181 kilometers (5,705 miles / 4,957 nautical miles). The estimated flight time for this route is approximately 12h, flying east northeast at a heading of 70°.

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 11:38 in Barcelona, it's 16:38 in Chiang Rai. 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 1,268 feet between the two airports. Chiang Rai International Airport sits higher than Barcelona International Airport.

The return flight from Chiang Rai (CEI) to Barcelona (BCN) follows a heading of 311° (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 Chiang Rai International Airport (CEI) detail pages, or use our flight duration calculator to compare other routes.