United Airlines is overhauling its MileagePlus loyalty program to reward customers who have the carrier's credit card over those without it.

A new loyalty program, BofA Rewards, launches May 27 and will be open to all personal account holders without a minimum balance requirement. The program introduces new tiers and benefits, expanding access to perks like mortgage fee discounts, auto loan discounts and cash-back deals.

The bank’s new program will offer rewards to personal checking account clients regardless of their balance, making 30 million existing customers eligible to join.

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