United Airlines flights grounded in United States due to system glitch

United Airlines temporarily grounded all of its mainline flights due to a technical issue facing its systems, affecting thousands of US passengers. The issue was resolved in an hour, even as the airline warned of flight delays.

Passengers took to social media to vent their frustrations as operations came to a standstill in the airports of Chicago, Denver, Newark, Houston and San Francisco.

“The underlying technology issue has been resolved and while we expect residual delays, our team is working to restore our normal operations,” a United Airlines spokesperson told CNN.

The airline confirmed that it was not a cyberattack, reported ABC News. While it did not confirm the exact issue, a source told Reuters that the airline suffered an outage of its weight calculation system.

So far, 827 flights have been delayed and 23 have been cancelled.

After the major US carrier reported the system issue, the Federal Aviation Authority issued ground stops at several major airports.

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