United Airlines briefly grounded all flights in the United States and Canada on Tuesday night (September 23) due to a connectivity issue. The airline requested the Federal Aviation Administration (FAA) to implement a nationwide ground stop, which lasted about 30 minutes. This incident marks the second time in two months that United has halted its mainline flights due to technical problems.

According to a statement from United, operations resumed shortly after the issue was resolved. The airline has not disclosed specific details about the source of the problem. A spokesperson told Fox Business , "United experienced a brief connectivity issue just before midnight Central time on Tuesday, but has since resumed normal operations."

In early August, United faced a similar issue when

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