FILE – In this Dec. 1, 2010, file photo, Virgin America’s inaugural flight between Los Angeles and Dallas Fort Worth International Airport comes in for a landing in Grapevine, Texas. Alaska Air Group Inc. is buying Virgin America in a deal worth more than $2 billion, creating a powerhouse airline with an expanded West Coast presence. Alaska Air said Monday, April 4, 2016, that the deal will expand its route network. (AP Photo/LM Otero, File)
Alaska Air Group Inc. said Monday it plans to buy Virgin America in a deal worth more than $4 billion that marks another consolidation in the U.S. airline industry.