To keep your Flying Blue miles from expiring, you need to have a qualifying activity every 20 months. Qualifying activities include earning miles through flights, hotel stays, or car rentals, as well as redeeming miles for rewards. Any eligible transaction will extend the validity period of your miles, ensuring they remain active. Make sure to regularly check your account to keep track of your miles' status and plan your activities accordingly.
Asked Feb 19, 2026 7:02 PM