The most frequently used airline companies from Curitiba to Sao Paulo are generally
Türk Hava Yolları,
Delta Air Lines,
Gol Linhas Aereas,
American Airlines,
Air France,
Japan Airlines,
TAP Portugal,
Lufthansa,
Avianca,
Copa Airlines,
Virgin Atlantic,
Ethiopian Airlines,
Azul Linhas Aereas Brasileiras,
Tam Linhas Aereas,
Aerolineas Argentinas,
Lan Airlines,
British Airways,
Air Europa,
Qantas Airways,
Emirates,
Iberia,
Air Canada,
Aeromexico,
Qatar Airways,
KLM,
United Airlines,
Swiss,
Alitalia
are companies.