Rio Sul Serviços Aéreos Regionais
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| Founded | 24 August 1976 | ||||||
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| Commenced operations | 8 September 1976 | ||||||
| Ceased operations | 20 July 2006 | ||||||
| Hubs | |||||||
| Frequent-flyer program | Smiles | ||||||
| Alliance | Star Alliance (affiliate; 1997–2006) | ||||||
| Subsidiaries | Nordeste (1995–2002) | ||||||
| Parent company | Varig | ||||||
| Headquarters | Rio de Janeiro, Brazil | ||||||
| Website | www.voeriosul.com.br rio-sul.com/home.htm | ||||||
Rio-Sul Serviços Aéreos Regionais S/A was a regional airline headquartered in Rio de Janeiro, Brazil, operating scheduled services to southern Brazil. Its main base was São Paulo–Congonhas Airport, with hubs at Porto Alegre Airport and Santos Dumont Airport.