CHICAGO — United Airlines said a technology issue that led to a grounding of its flights for a few hours at U.S. airports and major delays across its network on Wednesday had been resolved.

“While we expect residual delays, our team is working to restore our normal operations,” the airline said.

The technology issue prompted ground stops at several major United hub airports including Newark, Denver, Houston, and Chicago, according to the U.S. Federal Aviation Administration’s website.

United said the problem related to its Unimatic system that houses information about each flight that is then fed to other systems, including those that calculate weight and balance and track flight times.

As of 10:25 p.m. ET (0225 GMT on Thursday), flight tracking data from FlightAware showed that 1,038,

See Full Page