Purpose: The study aims to systematize the most important events and processes that determined the progress in the development of air transport. It serves to clarify the research methodology, the importance of globalization and competition, relationships, stimulators and alliances in the process of gaining advantages on the passenger air transport market. Design/Methodology/Approach: The configuration and scope of the research process were based on the available literature, statistical data, empirical calculations, interviews, opinions, experiences of scientists and representatives of airlines and airports. The methodology of the effectiveness of the impact of market rules in the conditions of liberalization and globalization was also used, as well as gaining a leading position in the conditions of competition and the search for economic efficiency. Findings: The need to supply high-quality expected services, maintain permanent ties with former and current customers (loyalty programmes), apply incentives, promotions, discounts and awards, determining the dimensions of passenger movement between traditional and low-cost carriers, has been demonstrated. Practical Implications: Reliability, comprehensiveness and universality of research become an absolute requirement for the effectiveness of analyzes and assessments. The universal research methodology presented in the study can be used in any field and in relation to any entity of transport activity. Originality/Value: The research methodology adopted allows for comprehensive research, both theoretical and pragmatic. It also extends the effective search for the desired solutions. In order to gain a competitive advantage in air transport, it is necessary to improve the quality of services and service in all phases of the transport process, as well as to expand and tighten loyalty relations with customers