The airline now has the largest mainline fleet in the world.
A United Boeing 737 MAX 9 (Photo: AirlineGeeks | Katie Zera)
United has received its 1,000th mainline jet, claiming the title of the world’s largest mainline fleet. The aircraft ‒ a 737 MAX 9 with registration N77584 ‒ was delivered by Boeing on Monday.
With this latest delivery, the Chicago-based carrier not only has 1,000 aircraft in its mainline fleet but also has the most airplanes of any airline globally. Data from aviation analytics company Cirium shows that United took delivery of 57 total aircraft last year.
In 2024, the airline achieved a handful of fleet milestones, despite ongoing delivery delays at Airbus and Boeing. This includes its 25th A321neo, which was delivered in December. United also received its first Boeing 787 delivery in 20 months.
United’s newest 787 features a special paint scheme. (Photo: Noah Escobar)
The airline now trumps the mainline fleets of both Delta and American, which were the previous titleholders. According to planespotters.net data, Delta has 985 aircraft, while American has 978.
United is slated to maintain its fleet-dominant position as well, with around 700 aircraft still on order, including new types such as the A321XLR and Boeing 737 MAX 10. Both American and Delta each have around 300 jets in their plans.
In 2025, United says it expects to take delivery of 71 narrowbody and 10 widebody aircraft, down from previous plans of 100 new jets this year.
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