Recently, Delta Air Lines shook up it SkyMiles frequent-flier program, saying it will begin awarding free flights based on dollars spent, rather than miles flown. The move rewards higher-spending customers, while hurting bargain-hunting travelers who earn thousands of miles by flying long distances across the country on cheap fares. Delta vows the changes will make it easier to redeem miles for flights. Today, two air-travel consumer experts weigh in on Delta’s changes.
