In Brazil, points and miles can work very well. Especially when paid fares stop making sense, when the trip is close in, or when one specific segment becomes too expensive. The core logic stays the same: use your balance when it genuinely simplifies the trip — not just because it is there.
When paid fares jump during busy periods, rewards can restore some rationality to the booking.
When a trip must happen close to departure, an award booking can work better than paying cash.
Some routes or connections become disproportionately expensive in cash. Miles can help correct those distortions.