Frequent flyers who hold a United Airlines co-branded credit or debit card can soon earn up to twice as many miles as noncardholders, effectively rewarding the airline’s biggest spenders.

The United MileagePlus® Debit Rewards Card is one of the newest additions to a growing list of rewards debit cards. While it earns miles at a lower rate compared to traditional rewards credit cards, ...

Delta Air Lines and United Airlines have accounted for most of the industry’s profits since 2022. Their appeal to wealthy travelers could become a liability if the economy weakens. By Niraj Chokshi ...