C.A.I. First S.p.A. was an Italian airline operating flights for its parent company, Alitalia, to preserve slots at Linate Airport. For this reason Alitalia when merged with Air One didn't close C.A.I. First, which at that time still operated as Alitalia Express. It used to have bases at Leonardo da Vinci-Fiumicino Airport in Rome and Malpensa Airport in Milan. C.A.I. First was dissolved and merged into Alitalia mainline by February 2015.The name C.A.I.