The flight distance from Cancun International Airport (CUN) in Cancun, Mexico to Seosan Air Base (HMY) in Seosan, South Korea is 12,702 kilometers (7,892 miles / 6,858 nautical miles). The estimated flight time for this route is approximately 16h, flying north northwest at a heading of 331°.

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 South Korea. 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 10:00 in Cancun, it's 00:00 in Seosan. 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.

The return flight from Seosan (HMY) to Cancun (CUN) follows a heading of 34° (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 Seosan Air Base (HMY) detail pages, or use our flight duration calculator to compare other routes.