Commercial Airlines

Commercial Airlines covers the major network carriers that operate large-scale scheduled passenger service — in the U.S., the big four (American, Delta, United, Southwest) plus Alaska and others. At ~$229B (the broad scheduled-passenger-air category) they dominate the industry, operating hub-and-spoke and point-to-point networks domestically and internationally.

Demand recovered strongly post-COVID, with premium and international travel especially robust, and the majors have leaned into premium cabins, loyalty programs, and co-branded credit cards (now among their most valuable and profitable assets). It is a consolidated industry where the big four wield enormous scale, facing labor-cost pressures, aircraft-delivery constraints, and the structural challenge of cyclical, capital-intensive economics; consolidation is largely complete and further mergers face antitrust hurdles.