The phrase "flexible rewards" refers to rewards or benefits that can be adjusted or used in different ways according to someone's needs or preferences. Full definition
Generally, you earn more points with flexible reward programs than with airline branded credit cards. (pointchaser.com)
While this isn't as exciting as more flexible reward cards with transferable points, you will earn miles on a flight purchased with cash back since you're flying on a revenue fare. (rewardexpert.com)
Real travel pros might go for a more flexible rewards card that offers points that can be transferred to a variety of airline and hotel partners. (rewardexpert.com)