The flight distance from Chiang Rai International Airport (CEI) in Chiang Rai, Thailand to Cancun International Airport (CUN) in Cancun, Mexico is 15,398 kilometers (9,568 miles / 8,314 nautical miles). The estimated flight time for this route is approximately 19h, flying north at a heading of 10°.

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

Time zone information: When it's 16:05 in Chiang Rai, it's 04:05 in Cancun. With a 12-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 1,258 feet between the two airports. Cancun International Airport sits lower than Chiang Rai International Airport.

The return flight from Cancun (CUN) to Chiang Rai (CEI) follows a heading of 350° (north). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Chiang Rai International Airport (CEI) and Cancun International Airport (CUN) detail pages, or use our flight duration calculator to compare other routes.