Revision with unchanged content. In the recent years, a growing economic importance of services could be observed. The share of people working in the service sector has grown to more than 60% in nearly all western countries. One practical example for the growing importance of services is the European aviation industry. Formerly exclusively dominated by a small number of state-aided airlines embedded in a system of national regulations, the liberalisation of the industry during the 1990s was the starting point for a new era in the aviation industry. This study will describe the special characteristics of services and the requirements for marketing activities in the service sector compared to other areas. Thereby, special attention will be paid to low fare airlines. Solutions and possible approaches for a successful marketing of low fare airlines will be presented. The main focus will be on the expansion of the classical marketing mix. The paper concludes with a brief outlook describing possible future developments and important fields. The book aims at students as well as academics interested in Marketing in general and Services Marketing in particular.