Air Stocks And ETF Plunge: Warming Up For Summer? By: TalkMarkets May 22, 2015 at 05:50 AM EDT Most of the airlines are expanding rapidly with Southwest Airlines expected to increase capacity by as much as 8% this year and JetBlue likely to add 7–9%. Read More >> Related Stocks: Alaska Air Group Allegiant Travel Com American Airlines Gp Delta Air Lines Jetblue Airways Corp Skywest Inc Southwest Airlines US Global Jets ETF