All United Airlines flights were grounded nationally this morning due to a “connectivity issue” before the ground stop was lifted 30 minutes later.The Federal Aviation Administration issued the stop at the company’s request across the U.S. and Canada between 1 a.m. ET and 2:30 a.m. ET — but it was then canceled at 1:30 a.m.The reason given by the Air Traffic Control System Command Center (ATCSCC) was simply “COMPANY REQUEST / TECHNOLOGY.”The airline told NBC News in an emailed comment: “United experienced a brief connectivity issue just before midnight Central time on Tuesday, but has since resumed normal operations.”FlightAware’s “Misery Map” showing delays across the country showed 42 delays and 4 cancelations between 12 a.m. ET and 4 a.m. with LAX the worst effected.The airline had a similar outage in August, when airports in Chicago, San Francisco, Houston and Newark, New Jersey were hit by delays due to an unspecified problem.
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United Airlines flights grounded nationwide for 30 minutes due to ‘connectivity issue’