All flights were halted for approximately 30 minutes. United Airlines informed the Daily Mail of a ‘brief connectivity issue’ that occurred just before midnight Central Time on Tuesday. They confirmed that normal operations have since resumed.

With United operating between 4,000 to 5,000 flights daily, this stoppage likely caused significant disruptions for countless passengers. The Daily Mail has inquired if the stoppage affected flights already in the air or only those on the ground awaiting departure.

This is the second instance in a month that the US-based airline has requested a halt in departures due to an unspecified ‘technical glitch.’ In August, a similar grounding affected major US airports, including Newark, Denver, Houston, and Chicago.

Earlier in August, a ground stop by the FSS affected United Airlines flights at five major airports across the US, impacting travel through Chicago, Denver, Newark, Houston, and San Francisco.

At that time, United Airlines informed the Daily Mail that the stoppage was due to a ‘technology issue.’ They stated, ‘Due to a technology issue, we are holding United mainline flights at their departure airports.’

‘We expect additional flight delays this evening as we work through this issue. Safety is our top priority, and we’ll work with our customers to get them to their destinations.’ According to data from FlightAware, 1071 United Airlines flights were delayed and 67 were canceled.

The airline told Daily Mail that the technology issue was not a cyber attack, as it cited a problem with the ‘weight and balance computer system.’ This ground stop did not appear to affect planes that are already in the air, ABC’s Sam Sweeney reported. Those planes continued to their destinations as planned.