The main subject of this bachelor’s thesis is to compare two price-making models of airlines, namely the full-service and the low-cost model. The first part aims to introduce and describe some of the crucial concepts of flight carriers, complementary services, revenue management and its functioning. The second part focuses on trend analysis of air flight tickets and booking classes over time of the companies ČSA and Ryanair from a collected set of data for specific destinations. Positive and negative aspects of full-service and low-cost airlines are discussed at the end of the second part, which will then be used to create a hybrid model.