Varig Natal along the Brazilian coast and was thus better prepared to compete with Panair do Brasil and Cruzeiro do Sul. In 1949 the Brazilian government granted to Varig the concession to fly to the United States, since the original airline which had the concession, Cruzeiro do Sul, was unable to operate the services. The inaugural flight between Rio de Janeiro-Galeão and New York-Idllwild (later renamed John F. Kennedy International Airport) was on . The services were operated by three new Lockheed L-1049G Super Constellations. On flights to Buenos Aires using Curtiss C-46s started. In January 1956 Varig served 55 cities
Varig airlines, on Varig acquired a controlling interest in Cruzeiro do Sul, which was in a particularly delicate economic situation. Cruzeiro do Sul was fully integrated into VARIG on . On , the Brazilian Federal Government created the Brazilian Integrated System of Regional Air Transportation and divided the country in five different regions, for which five newly created regional airlines received a concession to operate air services. Rio-Sul Serviços Aéreos Regionais S/A was the fourth of those regional airlines to be made operational and it was established by Varig in partnership with Top Táxi Aéreo, Bradesco Bank, and Atlântica-Boavista Insurance. Its