Delta has Basic Economy fares for select flights from Atlanta, Detroit, Minneapolis/St. Paul and Salt Lake City offering a discount fare with limited perks. And as of Feb. 1, 2015, Medallion status members will no longer be able to purchase upgrades or get free upgrades to premium classes or a Economy Comfort or Preferred seat. Also as of Feb. 1, 2015, Medallion members will not be able to make same-day travel changes. When flying Basic Economy, passengers cannot choose their seats in advance and are the last to board the plane (unless you are Medallion). Visit http://www.insideflyer.com/link/?11826 to learn more.