Lawsuit Reveals How Airlines Value Frequent Fliers

Most travelers know that airline fares change rapidly, often to a shopper’s chagrin. The same thing can happen when you use frequent-flier miles to book a hotel or rental car, although typically you catch a break the more miles you’ve amassed with the airline. But two members of United’s MileagePlus program say in a lawsuit that they had the opposite experience, Bloomberg BusinessWeek reports.