The US Department of Transportation has approved American Airlines' request for 17 US to Brazil frequencies.
American will use the frequencies to add a second daily flight between New York's John F Kennedy airport and Sao Paulo-Guarulhos on 1 October, split its existing daily Miami to Recife and Salvador service into separate five-times weekly Miami to Recife and Miami to Salvador flights on 15 November and add a second daily flight between Miami and Rio de Janeiro-Galeao on 15 December.
The Fort Worth, Texas-based airline must begin the flights within 90 days of its proposed start dates or it will have to return the frequencies to the DOT.
American will use a Boeing 777-200 between New York and Sao Paulo, a 767-300ER between Miami and Rio and a 757-200 on the Recife and Salvador flights.
The DOT is awarding American 10 frequencies that became available in 2011 and seven frequencies that will become available on 1 October under the US and Brazil's open skies treaty. The agreement was signed in March 2011 with full liberalisation occurring in 2015.
Delta Air Lines and Brazil's TAM also fly the JFK to Sao Paulo route. TAM flies Miami to Rio as well.