United Airlines is experiencing a major technology outage on July 20, 2026, which has led to the cancellation of over 2,000 flights across the United States. The failure has disrupted the airline’s check-in and boarding systems nationwide.
Ground stops have been put in place at seven major US airports as a result of the outage. Passengers are being affected by widespread delays and cancellations linked to the operational disruptions caused by the technology failure.
