United Grounds All Mainline Flights Throughout US Over Tech Glitch, Says Count on ‘Further’ Delays – Alaska Air Gr (NYSE:ALK), American Airways Group (NASDAQ:AAL)

On Wednesday, United Airways Holdings Inc. UAL briefly grounded all mainline flights nationwide after a system glitch disrupted essential weight and steadiness calculations, reigniting scrutiny over the fragility of U.S. aviation infrastructure.

United Blames Know-how Situation, Not Cyberattack

The airline confirmed {that a} “know-how difficulty” with its weight and steadiness system—important for flight security—led to a halt on all mainline departures, reported ABC Information.

“Attributable to a know-how difficulty, we’re holding United mainline flights at their departure airports,” United stated in a press release. “We anticipate further flight delays this night as we work by means of this difficulty. Security is our prime precedence, and we’ll work with our prospects to get them to their locations.”

United stated that the issue was not the results of a cyberattack, in accordance with a press release shared with the publication. Flights already within the air continued to their locations, and United Categorical flights weren’t affected.

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FAA Notices Affirm Floor Stops At Main Hubs

The Federal Aviation Administration (FAA) issued a number of floor cease notices at key United hubs, together with Newark, San Francisco, Chicago, Denver and Houston, additional amplifying the disruption throughout the airline’s community, the report famous.

Aviation Infrastructure Beneath The Microscope

The incident provides to a string of aviation setbacks involving IT techniques, cyberattacks and ageing infrastructure.

• In July, Alaska Air Group Inc. ALK grounded all mainline flights nationwide due to an IT techniques outage.
• In January, JetBlue Airways Corp JBLU was fined $2 million by the U.S. Division of Transportation for working chronically delayed flights.
• Additionally in January, the U.S. Division of Transportation and the Division of Justice filed a joint lawsuit in opposition to Southwest Airways Co. LUV, accusing the provider of working “chronically delayed flights” that disrupted passenger journey.
• The FAA in Could thought-about lowering flight volumes at Newark as a consequence of outdated techniques and staffing shortages.
• In 2024, a defective CrowdStrike Holdings Inc. CRWD software program replace for Microsoft Company’s MSFT Home windows sparked an enormous world IT outage, grounding main U.S. carriers together with Delta Air Strains, Inc. DAL, United and American Airways Group Inc. AAL. The disruption led to the cancellation of at the very least 2,500 flights and delays to over 8,000 throughout the U.S., with widespread ripple results felt worldwide.
• In July, Russian provider Aeroflot was hit by a main cyberattack that grounded over 100 flights, whereas an influence outage at London Heathrow in March crippled operations and brought about an estimated $100 million in airline losses.

Delta, Alaska Shine In Punctuality Rankings

Delta Air Strains and Alaska stay among the many most punctual U.S. carriers, whereas United ranks tenth globally with an on-time price of 80.93%, per aviation analytics agency Cirium.

In July, American Airways delivered better-than-expected second-quarter 2025 outcomes, demonstrating robust operational efficiency regardless of weather-related disruptions throughout its community.

Final month, United posted second-quarter income of $15.27 billion, falling wanting the $15.35 billion consensus estimate. Nevertheless, its adjusted earnings got here in at $3.87 per share, topping analyst expectations of $3.77.

Value Motion: United Airways inventory dipped 0.30% after hours, closing at $88.60, per Benzinga Professional. Throughout the identical interval, shares of American Airways dipped 0.17%, whereas JetBlue Airways Corp and Delta edged up 0.23% and 0.055%, respectively. Southwest Airways shares had been additionally up by 0.13%.

In keeping with Benzinga’s Edge Inventory Rankings, UAL continues to indicate robust momentum throughout brief, medium and long-term durations. Further efficiency particulars can be found right here.