United Airlines has achieved a significant milestone, surpassing a fleet size of 1,000 mainline commercial passenger aircraft as of January 2025. According to data from ch-aviation, the airline currently operates 1,052 aircraft, showcasing substantial growth despite retiring some older models earlier this year. This expansion underscores United’s position as one of the largest carriers globally, with a diverse array of aircraft types.
The airline’s fleet features a mix of both Airbus and Boeing aircraft, particularly in its narrowbody segment. While all of its widebody aircraft are manufactured by Boeing, the narrowbody offerings include models from both manufacturers. United’s operations reveal a notable diversity, accommodating various routes and passenger needs.
Widebody Operations: A Boeing Dominance
United Airlines operates three main families of widebody aircraft from Boeing: the 767, 777, and 787. The 767 family includes 37 767-300ERs and 16 767-400ERs, with average ages of 29.6 and 24.1 years, respectively. Meanwhile, the airline’s 777 fleet includes 19 777-200s and 55 777-200ERs, with average ages of 28.6 and 25.6 years. In contrast, the newer 777-300ER aircraft, averaging 7.8 years, and the 787 models, particularly the 787-9 and 787-10, are significantly younger, averaging 6.7 and 5.3 years respectively.
Looking ahead, United Airlines is evaluating its future with the Airbus A350 order, while simultaneously enhancing the interiors of its 787-9 aircraft. The airline aims to provide “a more premium experience overall,” which aligns with its goal of increasing international service and strengthening its market position.
Narrowbody Fleet: A Blend of Airbus and Boeing
United’s narrowbody fleet currently consists of Airbus models, including the A320ceo and A320neo families. The carrier operates 46 A321neos and has orders for 206 additional aircraft, including 50 A321XLRs. The first-generation A320ceo family jets are aging, with an average age of over 24 years for its 81 A319-100s and 73 A320-200s, which average 25.8 years.
In addition to Airbus aircraft, United Airlines has a robust fleet of Boeing narrowbodies, particularly the 757 series, which includes 40 757-200s and 21 757-300s, with average ages of 28.7 and 23.2 years. The airline’s diverse Boeing narrowbody fleet also features the 737NG family, with various models such as the 737-700, 737-800, 737-900, and 737-900ER.
As the airline plans for the future, the 737 MAX family is poised to play a crucial role. Currently, United operates 111 MAX 9 aircraft, which are expected to outnumber the 737-900ER in the coming years. With an additional 112 MAX 9 units on order and 123 MAX 8s averaging 2.8 years, United Airlines is preparing for a significant evolution in its narrowbody operations.
This strategic expansion and modernization of its fleet not only enhances operational efficiency but also aims to improve the overall travel experience for passengers. As United Airlines continues to adapt to market demands, its focus remains on delivering quality service and maintaining a competitive edge in the aviation industry.