Air transport is the newest form of traffic branch and in today's modern conditions it advances very quickly. Basically, air transport provides passenger transportation, especially to far-away destinations, because of its greatest advantage - speed of travel. Due to globalisation the air transport market is characterized by strong competition, and the liberalization of the Croatian air transport industry has contributed to increased utilization of international passenger transport. Precisely as a result of the aforementioned influences, air transport requirements in Croatia are experiencing higher growth. The dependence on air transport and tourism is increasingly necessary and of great economic importance. Fast and consistent growth, continued development and changes in the air transport market require adaptation by air carriers. With the emergence of low-fare airlines on the Croatian market, passengers have more choices and opportunities than ever before. With their presence on the market, low-cost carriers have greatly influenced the air transport market and contributed to the growth of passenger traffic. The aim of this paper is to present the situation affecting the air transport market and to explore passengers’ satisfaction with the low-cost carriers. The results of primary research show that passengers who travel with low cost carriers place high importance on pricing, ticket availability and destination availability, and are satisfied with the service they receive in comparison to the ticket price. Research also shows that passengers place importance on how quickly they can buy tickets online and the availability of various payment options.