United Airlines has announced the expansion of its Airbus A321neo operations for the upcoming summer season. The airline plans to introduce additional flights from two major hubs, Chicago O’Hare International Airport (ORD) and Denver International Airport (DEN), as highlighted by AeroRoutes.
The expansion includes nine new routes within the continental United States, connecting cities such as Chicago and Newark Liberty International Airport (EWR), and Chicago to Sacramento International Airport (SMF). In August, these routes will be served by a mix of Boeing 737-900, 757-200, and A321neo aircraft. However, starting in September, only 737 MAX 8 and 737-900 aircraft will operate on certain routes like Chicago to Newark.
Data from Cirium’s Diio Mi airline planning system shows a reduction in scheduled A321neo flights from 903 weekly in August to just 404 in September. This change is not attributed to maintenance issues due to the relatively young age of the fleet.
In addition to domestic expansion, United Airlines has performed an Airbus A321neo ETOPS proving flight to Hawaii from San Francisco to Honolulu. This indicates potential use of the new planes for over-water flights.
United’s flight schedule with the A321neo is significantly expanding. In August, they are set to operate 903 weekly flights compared to just 238 during August of last year—a substantial increase. These aircraft serve a variety of destinations with heavy traffic between major hubs like Chicago-O’Hare and Los Angeles.
Looking ahead at fleet development, United Airlines plans to grow its A321neo/A321XLR fleet throughout 2025. The airline intends to have different numbers of these aircraft each quarter: ending Q1 with 35, Q2 with 41, Q3 with 48, and Q4 with 57 planes. Challenges faced by Boeing regarding certification of the MAX series are partly influencing this growth strategy.
According to ch-aviation data, United ended previous years with four A321neos in service by end-2023 and increased that number significantly by end-2024. CEO comments reflect optimism about ongoing demand trends moving into next year after achieving $3.5 billion profit last year alongside record passenger numbers.
