Airline credit cards, primarily aimed at a travelers' convenience, are the result of collaboration between credit card companies and different airline companies. These are very popular reward cards and are a step further to frequent flyer cards. Frequent flyer cards can be airline sponsored or bank sponsored. Bank sponsored credit cards allow more flexibility, as the miles earned can be used on many airlines unlike airline-sponsored, which focuses on single airline. Apart from numerous incentives, transactions on airline credit card can add substantial savings for the cardholder.