Just read this in Bloomberg Business

http://www.bloomberg.com/news/articl...adline&ref=yfp

Delta Air Lines, the world’s second-largest carrier, wants to end that mindset and get people treating their miles as a form of currency. Sure, flyers can use points to make those business and first-class tickets more affordable. But this is the beginning of the end for the era of the free ride.

“We want people to be able to use those miles not to fly for free but to control your experience,” says Glen Hauenstein, Delta’s incoming president and architect of the airline’s revenue plans.