If you want a cheap flight from Inverness to Rio De Janeiro, you've got zero airlines to choose from.
Rio De Janeiro Santos Dumont Airport is just one of the airports in Rio De Janeiro. If you're not set on a specific airport, try changing your search from Rio De Janeiro Santos Dumont Airport to Rio De Janeiro to see a broader range of flights – they might be cheaper.
During this peak season, hotel and holiday prices often increase too, so it's best to book early. Or you could keep your fingers crossed and hold out for a last-minute deal.