Spirit Airlines shares buy rating reiterated September, 2015 | Airline, Americas | 0 | Barclays Capital reiterated a Buy rating and issues positive comments on Spirit Airlines, boosting its share price.This content is restricted to site members. If you are an existing user, please login below. New users may register below.Existing Users Log InUsername or EmailPassword Remember Me Forgot password? Click here to resetNew User? Click here to register