The flight distance from Casper/Natrona County International Airport (CPR) in Casper, United States to Guarulhos - Governador Andre Franco Montoro International Airport (GRU) in Sao Paulo, Brazil is 9,591 kilometers (5,960 miles / 5,179 nautical miles). The estimated flight time for this route is approximately 12h, flying southeast at a heading of 127°.

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

Time zone information: When it's 05:05 in Casper, it's 09:05 in Sao Paulo. The 4-hour time difference may cause some jet lag. Most travelers adjust within a day or two.

There is a significant elevation difference of 2,885 feet between the two airports. Guarulhos - Governador Andre Franco Montoro International Airport sits lower than Casper/Natrona County International Airport. Travelers arriving at the higher-elevation airport should be aware of potential altitude effects.

The return flight from Sao Paulo (GRU) to Casper (CPR) follows a heading of 321° (northwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

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