For some fliers, mileage programs come up short - Article Photos 1/1

FILE - This Monday, Aug. 20, 2012, file photo, shows a Delta Air Lines aircraft taking off at Miami International Airport in Miami. Delta Air Lines Inc. announced during the last week of February 2014, that starting Jan. 1, 2015, it will reward passengers for the amount they spend on tickets, not the number of miles they fly. The change to Delta’s SkyMiles program will be great for people who buy expensive tickets in first-class, but bad for vacationers who shop for the cheapest fare. Delta’s decision has renewed the debate about whether airline frequent-flier programs are worthwhile for people who only fly a few times a year. (AP Photo/Alan Diaz, File)