Credit card points: How to use them for free flights, hotel stays, and better travel rewards - The Economic Times

Travellers should also remember that loyalty program transfers are generally irreversible. Before moving points to an airline or a hotel program, it is advisable to confirm award availability and understand the redemption rules. Airline miles can also expire or lose value over time if loyalty programs change their award charts. Besides, there are taxes and fuel surcharges, which could be expensive.

Raccontata daeconomictimes.indiatimes.com