This article analyzes the service quality of airport complexes, which occupy a leading position in the behavioral economy and are accompanied by increasing safety needs. The peculiarities of the domestic and European airline market are the following prerequisites for the study: the increasing capacity of flights, the growth of air transportation because of the introduction of powerful low-cost airlines to the market, and the development of technical equipment and services at airport complexes. The theoretical basis of the study is the doctrine of the development of perfect monopolistic competition, where the main factor of competition is the qualitative provision and service of, in particular, air carriers. The purpose of the study is to determine the position of selected airport complexes according to the criterion of quality of B2B airport service. The research method was a representative survey of air carriers and a comparative analysis – allow us to rank the providers of airport services. In this work, in order to prove the purpose, the methodology of B2B clients’ evaluation of the quality of airport complex services, ground, and airport servicing of airplanes was used with the help of the main groups of criteria. These criteria are the following: aerodrome and airport safety; aviation ground handling, settlement, and settlement of cargo and mail; organization of support of aircraft fitness, provision of fuel and lubricants, promotion of carrier flights, etc. The results of the study revealed the weak sides of quality assurance at Zaporizhzhia International Airport: in maintaining the airworthiness of aircraft, in the organization of settlements and processing of cargo and mail, and in the ground handling of aircraft. The results of the study show that the quality of services at Zaporizhzhia International Airport in the market of air transportation services is rated at an average level for Ukraine, with a tendency for improvement.