United Airlines flights return to the air

The grounding of all United Airlines flights in the United States has come to an end.



Nearly 5,000 flights were temporarily grounded Wednesday morning because of computer problems. Less than two hours later, United asked the Federal Aviation Administration to lift the ground stop order. 



Once flights resumed, airports were plagued by several hours of delays. However, travelers at Newark Liberty International Airport tell News 12 New Jersey that the delays weren't all that bad.



United cited "network connectivity" as the source of the problems and does not believe foul play is involved.



It is the second time in two months that the carrier has been hit by major technical issues. United had halted all takeoffs in the U.S. on June 2 due to what the airline described as computer automation issues.



The FAA used the same language in its notice about the outage today.



United suffered a series of computer problems in 2012 after switching to a passenger information computer system previously used by merger partner Continental Airlines. In each case, hundreds of flights were delayed.



United's computer problems come on the same day that the New York Stock Exchange experienced technical problems. Trading was down for several hours following that glitch.



The Associated Press wire services contributed to this report.


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