The flight distance from Angkor International Airport (REP) in Siem Reap, Cambodia to Nuevo Aeropuerto Internacional Mariscal Sucre (UIO) in Quito, Ecuador is 18,519 kilometers (11,507 miles / 10,000 nautical miles). The estimated flight time for this route is approximately 23h, flying north at a heading of 9°.

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

Time zone information: When it's 15:22 in Siem Reap, it's 03:22 in Quito. 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 9,140 feet between the two airports. Nuevo Aeropuerto Internacional Mariscal Sucre sits higher than Angkor International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Quito (UIO) to Siem Reap (REP) follows a heading of 351° (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 Angkor International Airport (REP) and Nuevo Aeropuerto Internacional Mariscal Sucre (UIO) detail pages, or use our flight duration calculator to compare other routes.