Delta Air Lines (DAL) — 1,646 Aircraft Fleet/ DL

Delta Air Lines is one of the world's largest airlines, headquartered in Atlanta, Georgia, and founded in 1924. Operating primarily as a full-service carrier, Delta provides extensive domestic and international passenger services from major hubs in Atlanta, Minneapolis, Detroit, and Salt Lake City, along with significant operations in New York and Los Angeles. The airline is a founding member of the SkyTeam alliance and offers multiple cabin classes including first class, business, premium economy, and economy across its network. Delta's frequent flyer program, SkyMiles, is one of the industry's largest loyalty programs, and the airline carries tens of millions of passengers annually while also maintaining a substantial cargo operation. Known for its strong domestic network and significant international presence across Europe, Asia, Latin America, and the Caribbean, Delta operates as a legacy carrier with a reputation for operational reliability and customer service.