United Lifts Grounding of Domestic Flights After Computer Disruption

United Continental Holdings Inc. halted flights to U.S. destinations because of a computer issue, in the latest example of a system fault leading to travel disruptions at a U.S. airline. “We have issued a ground stop for all domestic mainline flights due to an IT issue,” Maddie King, a spokeswoman for the Chicago-based carrier, said in an e-mailed statement.