The flight distance from Guarulhos - Governador Andre Franco Montoro International Airport (GRU) in Sao Paulo, Brazil to Helena Regional Airport (HLN) in Helena, United States is 10,185 kilometers (6,328 miles / 5,499 nautical miles). The estimated flight time for this route is approximately 13h, flying northwest at a heading of 321°.

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

Time zone information: When it's 21:56 in Sao Paulo, it's 17:56 in Helena. 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 1,418 feet between the two airports. Helena Regional Airport sits higher than Guarulhos - Governador Andre Franco Montoro International Airport.

The return flight from Helena (HLN) to Sao Paulo (GRU) follows a heading of 123° (east southeast). 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 Helena Regional Airport (HLN) detail pages, or use our flight duration calculator to compare other routes.