United Airlines faced a major technology disruption on August 6, 2025, which led to the grounding of flights nationwide, causing turmoil at major airports like Chicago and San Francisco.
Over 1,000 flights were delayed and many canceled as a critical system outage forced the FAA to implement a ground stop for United Airlines flights.
The problem stemmed from the UniMatic system, essential for housing flight information, which brought operations to a halt during a busy summer travel season.
Despite the chaos, United Airlines asserted that the technology issue was resolved later that same evening, though passengers were warned of ongoing residual delays.
In an effort to provide assistance, the airline promised to cover costs for stranded travelers, including hotel expenses.
The incident raised significant concerns about the airline’s technological resilience and ordered a careful review of its systems to prevent future disruptions.