The flight distance from Licenciado Benito Juarez International Airport (MEX) in Mexico City, Mexico to Siem Reap Angkor International Airport (SAI) in Siem Reap, Cambodia is 15,564 kilometers (9,671 miles / 8,404 nautical miles). The estimated flight time for this route is approximately 19h, flying northwest at a heading of 323°.

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 Cambodia. 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 19:43 in Mexico City, it's 08:43 in Siem Reap. 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 7,125 feet between the two airports. Siem Reap Angkor International Airport sits lower than Licenciado Benito Juarez International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Siem Reap (SAI) to Mexico City (MEX) follows a heading of 35° (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 Licenciado Benito Juarez International Airport (MEX) and Siem Reap Angkor International Airport (SAI) detail pages, or use our flight duration calculator to compare other routes.