United Airlines Completes Phase One Expansion of Its Denver Flight Training Center

Denver’s Flight Training Center sits on the former Stapleton International Airport land in Denver’s Central Park neighborhood, on a 22-acre site at 7500 E 35th Ave, with origins dating to 1966–1968.
Phase one added about 40 new CAE training devices since 2022, bringing the total to 86 (52 full-motion and 34 fixed) and expanding capacity to train up to 860 pilots per day.
Denver city authorities approved rezoning two parcels for a second United training complex near DIA, with construction set to begin in 2027 and operations planned for around 2030, to run alongside the existing center.
United’s roughly 18,000 active pilots are all scheduled to pass through Denver for recurrent training roughly every nine months.
United Airlines has completed the first phase of a major expansion at its Denver Flight Training Center, solidifying its position as the world's largest single-site pilot training facility. The center now operates eight buildings spanning about 700,000 square feet with 86 CAE training devices—52 full-motion simulators and 34 fixed devices—capable of training up to 860 pilots per day, according to Simple Flying.
The expansion reflects United's aggressive growth strategy as it hires thousands of new pilots and prepares for a larger fleet. The airline is already planning phase two on nearby land near Denver International Airport, with construction expected to begin in 2027 and operations targeted for around 2030, The Traveler reported.
United's Denver Flight Training Center sits on 22 acres of the former Stapleton International Airport land in the Central Park neighborhood, with roots dating back to 1966–1968. The facility has evolved into a critical training hub where all of United's roughly 18,000 active pilots complete recurrent training approximately every nine months, Simple Flying explained.
Since 2022, United has installed about 40 new training devices at the Denver center. The addition brought the total simulator count to 86 devices, enabling the facility to conduct roughly 32,000 training events annually, The Traveler reported. The modernized interior now features advanced flight-deck technology to support United's mixed Airbus and Boeing mainline fleet.
Denver authorities have approved rezoning two parcels near Denver International Airport for a second United training complex. Construction on phase two is expected to start in 2027, with operations launching around 2030. The new campus will operate alongside the existing center to accommodate United's continued pilot demand and fleet expansion, The Traveler stated.
The Denver expansion aligns with United's broader strategy of large aircraft orders and sustained pilot hiring to support its growth plans. The facility's increased capacity—jumping from earlier configurations to 860 pilots training daily—positions Denver as a crucial economic anchor for the carrier's long-term operations, according to Simple Flying.
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