United Airlines Confirms Tech Issue Resolved After Ground Stop

United Airlines Ground Stop Due to Technology Issue

United Airlines experienced a significant disruption on Wednesday evening, resulting in a ground stop at Denver International Airport (DIA). This event impacted numerous flights and caused widespread delays across the airline’s network. The Federal Aviation Administration (FAA) issued a ground stop alert, which temporarily halted all United mainline flights from departing their origin airports.

The airline attributed the issue to a technology problem, though it initially did not specify the nature of the malfunction. A spokesperson for United Airlines stated that safety was their top priority and that they were working closely with customers to ensure they reached their destinations. “We are holding United mainline flights at their departure airports. We expect additional flight delays this evening as we work through this issue,” the statement read.

Later in the evening, the airline provided an updated statement, confirming that the underlying technology issue had been resolved. However, they acknowledged that residual delays were expected as operations returned to normal. United Airlines described the situation as a “controllable delay,” meaning the airline would cover expenses such as hotel stays or meals for affected passengers.

The system affected by the outage is called “Unimatic,” which manages critical flight data including weight, balance, and flight tracking information. According to the airline, the outage began at 5:12 p.m. Mountain Time and was resolved within a few hours. Importantly, the incident was unrelated to cybersecurity concerns in the airline industry.

As of 8:15 p.m. on Wednesday night, the FAA’s website still listed the ground stop as active, with the restriction set to end at 9 p.m. MT. The FAA also commented on the situation on social media, stating that United was experiencing a technology issue that could lead to continued delays. “We’ve offered full support to help address their flight backlog and remain in close contact with United,” the agency said.

U.S. Department of Transportation Secretary Sean Duffy also addressed the matter, noting that he had been briefed by United’s CEO. He confirmed that the issue was specific to United’s internal systems and not related to the broader air traffic control infrastructure. “The team at @FAANews is in close contact with their systems operations team, and we’ve offered our full support to help them clear up the flight backlog,” Duffy wrote.

Flight tracking software FlightAware reported that DIA had 412 delays and 10 canceled flights as of 7 p.m. On the list of delayed flights, 176 were attributed to United Airlines. The impact extended beyond DIA, affecting air traffic control facilities in cities such as Los Angeles, Salt Lake City, Washington, D.C., and others in the U.S., as well as some locations in Canada.

This situation highlights the interconnected nature of the aviation industry and the ripple effects that can occur when one major carrier experiences technical difficulties. As more details emerge, updates will be provided to keep travelers informed about the status of their flights and any further disruptions.