The flight distance from Guarulhos - Governador Andre Franco Montoro International Airport (GRU) in Sao Paulo, Brazil to Angkor International Airport (REP) in Siem Reap, Cambodia is 16,696 kilometers (10,374 miles / 9,015 nautical miles). The estimated flight time for this route is approximately 21h, flying east southeast at a heading of 104°.

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

Time zone information: When it's 09:21 in Sao Paulo, it's 19:21 in Siem Reap. With a 10-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 2,399 feet between the two airports. Angkor International Airport sits lower than Guarulhos - Governador Andre Franco Montoro International Airport.

The return flight from Siem Reap (REP) to Sao Paulo (GRU) follows a heading of 246° (west southwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Guarulhos - Governador Andre Franco Montoro International Airport (GRU) and Angkor International Airport (REP) detail pages, or use our flight duration calculator to compare other routes.