There is no doubt that LCCs have been one of the most significant developments in air transport in this century and they have had a major impact upon tourism demand and patterns of travel.Their innovative business model is now being adopted by FSAs,blurring the distinction between various types of carrier.This case has shown however,that LCCs have created a range of issues.not least their environmental impacts and consequences. It remains to be seen how sustainable the concept is in an era of high fuel prices,and also how the concept will evolve as LCCs begin to offer variants on the model,such as business airlines and long haul routes.