The flight distance from Cancun International Airport (CUN) in Cancun, Mexico to Buyant-Ukhaa International Airport (ULN) in Ulan Bator, Mongolia is 12,236 kilometers (7,603 miles / 6,607 nautical miles). The estimated flight time for this route is approximately 15h, flying north at a heading of 350°.

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 Mexico with Mongolia. 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 05:27 in Cancun, it's 18:27 in Ulan Bator. With a 13-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 4,342 feet between the two airports. Buyant-Ukhaa International Airport sits higher than Cancun International Airport.

The return flight from Ulan Bator (ULN) to Cancun (CUN) follows a heading of 14° (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 Cancun International Airport (CUN) and Buyant-Ukhaa International Airport (ULN) detail pages, or use our flight duration calculator to compare other routes.