The flight distance from Chiang Rai International Airport (CEI) in Chiang Rai, Thailand to Guarulhos - Governador Andre Franco Montoro International Airport (GRU) in Sao Paulo, Brazil is 16,525 kilometers (10,268 miles / 8,923 nautical miles). The estimated flight time for this route is approximately 20h, flying west southwest at a heading of 257°.

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 Thailand with Brazil. 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 04:49 in Chiang Rai, it's 18:49 in Sao Paulo. 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 1,179 feet between the two airports. Guarulhos - Governador Andre Franco Montoro International Airport sits higher than Chiang Rai International Airport.

The return flight from Sao Paulo (GRU) to Chiang Rai (CEI) follows a heading of 90° (east). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

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