Goal. The article is devoted to the study of the modification essence of competitive strategies as a result of the impact of crisis phenomena on the example of the activities of airlines. Methodology. Research methods include methods of scientific abstraction, observation, synthesis, generalization to highlight the key features of airlines competitive strategies, system-structural analysis of the market. The classification system of Porter's general strategies was applied in the airline sector. Results. Functional-level strategies in different areas of the firm, such as marketing, operations, finance, can only be properly developed when there is clear understanding of the overall business strategy. The article discusses general strategies that are available to all firms regardless of the sector, in accordance with Porter's view of activities differentiation and low cost, taking into account the breadth of operational goals. The focus was on airline operations, indicating the competitive strategies of full-service network carriers, low-cost carriers, integrated cargo carriers, regional airlines, charter airlines, and carrier-within-a-carrier airlines. These business models form the spectrum of strategic choices that will mix and function in hybrid forms as airlines continue to add nuance to their diverse approaches. The impact of crisis phenomena is direct factor in the hybridization of competitive strategies, although budget airlines have proven to be the most stable business models in terms of staff reduction. Scientific novelty. The competitive strategies of enterprises for the aviation sector and the business models of airlines, which respond to the global crisis challenges to varying degrees, are adapted, among which the budget business model is the most stable due to low operating costs. It was established that the business models of airlines are characterized by the approach of hybridization and mixing of business model features. Practical significance. The obtained results contribute the further development of theoretical approaches to the marketing research of airline activities, the analysis of the functioning of the air transport market. The materials reflect the generalization of competitive strategies of airlines.