The flight distance from Chiang Mai International Airport (CNX) in Chiang Mai, Thailand to Guarulhos - Governador Andre Franco Montoro International Airport (GRU) in Sao Paulo, Brazil is 16,400 kilometers (10,191 miles / 8,855 nautical miles). The estimated flight time for this route is approximately 20h, flying west southwest at a heading of 256°.

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 08:53 in Chiang Mai, it's 22:53 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 1,423 feet between the two airports. Guarulhos - Governador Andre Franco Montoro International Airport sits higher than Chiang Mai International Airport.

The return flight from Sao Paulo (GRU) to Chiang Mai (CNX) follows a heading of 92° (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 Mai International Airport (CNX) and Guarulhos - Governador Andre Franco Montoro International Airport (GRU) detail pages, or use our flight duration calculator to compare other routes.