Airline industry Porter's five forces model shows different forces that act on the players in the airline industry. These forces are competition in the industry, the threat of new entrants, suppliers' bargaining power, buyers' bargaining power, and the threat of substitutes.

Michael Porter’s "Five Forces" framework in the airline industry highlights why it is one of the most competitive and difficult sectors for profitability. 1. Rivalry among competitors is extreme, with airlines constantly battling on price and loyalty. 2. Threat of new entrants is moderate; while it's expensive to start an airline, low-cost carriers (LCCs) frequently enter profitable routes. 3. Bargaining power of buyers is high because passengers can easily compare prices on sites like Google Flights and have little brand loyalty. 4. Bargaining power of suppliers is very high; airlines are at the mercy of the "duopoly" of Boeing and Airbus for planes and a few massive companies for fuel and engines. 5. Threat of substitutes is significant on short-haul routes where high-speed rail, buses, or cars are viable alternatives. In 2026, these forces are further complicated by environmental regulations and the rising costs of "sustainable aviation fuel," making the industry a constant struggle for thin profit margins.