Rio de Janeiro has five airports. Antônio Carlos Jobim International Airport (GIG), better known as Galeão International Airport, is Rio's major international airport and the largest airport site in Brazil. The airport complex also has Brazil's longest runway at 4,240 meters, and one of South America's largest and best equipped cargo logistics terminals. The airport is located 20 kilometers (13 mi) from Rio city center and is served by several quick access routes. There are also special shuttle buses linking Galeão to Santos-Dumont, and bus and taxi service to the rest of the city.
Brasilia International Airport is a major hub for the rest of the country, connecting the capital to all major Brazilian cities and many international destinations. It is the third most important airport of Brazil, in terms of passengers and aircraft movements.
Internal Brazil flights are notoriously expensive, so it is a good idea to get a Brazil Pass, which allows you to take a few internal flights and it is cheaper than purchasing tickets separately.
If you plan to travel by air between Chile, Argentina, Uruguay and Brazil, you should consider buying a Mercosur Air Pass. The pass allows you to make two stopovers in each country, with a maximum of 10 stopovers. The pass is god for 7 to 30 days. Prices are based on mileage covered. You must buy the air pass outside of South Ameria, and your initial flight must be on Aerolineas Argentinas, American, Continental, Delta LAN Chile, TAM, United or Varig.