I will be in Brazil for a week in July with a couple of days in Rio and then want to go to Brasilia to visit some friends (and see the Neimeyer archiecture - so if anyone has any tips... do tell!). I know the internal airfares are expensive in Brazil as I was warned. Have tried Varig and Tam who suggested an airpass, but I just want to be in Brasilia for a few days and cannot stay in Brazil any longer than I have organised. Does anyone know any way to buy cheap flights or anywhere that I might get a good deal? (Expedia and Opodo's are still quite expensive!). The prices are so ridiculous I could fly to Buenos Aires cheaper for a few days instead! Any advice appreciated. Thanks.