American Express imposed limits on how many times Amex Platinum and Delta Reserve cardholders can access the Delta Sky Club. Here's how to track your visits.

The airline's latest updates for accessing its lounges have gone into effect. Delta Air Lines is limiting access to its sought-after airport lounges, putting new restrictions in place this month for travelers who use a credit card membership to get in.

Delta Air Lines is launching new Sky Club access rules Feb. 1, limiting the number of annual visits certain credit card holders can make to its airport lounges.