A fire alarm at ' Chicago operations center triggered a brief nationwide ground stop, with employees temporarily moving to a ...

Mainline United Airlines flights were briefly halted nationwide due to a fire alarm at a suburban Chicago facility on ...

United Airlines was forced to issue a nationwide ground stop for its entire fleet after a fire alarm sounded at its ...

United Airlines temporarily halted all mainline flights across the USA due to an emergency fire alarm at its Chicago-area ...

United Airlines experienced a brief nationwide ground stop due to a fire alarm at its Network Operations Center in suburban Chicago. The Federal Aviation Administration (FAA) issued a ground stop at ...

United Airlines temporarily grounded all mainline flights nationwide due to a fire alarm at its Chicago operations center, ...

A fire alarm at United Airlines headquarters at the Willis Tower in Chicago sparked a nationwide ground stop for all United flights on Thursday.

United Airlines faced a temporary disruption. A fire alarm at the Chicago operations center caused a nationwide ground stop.

The FAA confirmed the ground stop had been lifted as of around 12:50 p.m. Central Time, after being in place for more than an hour. United confirmed it was resuming flights.

United Airlines said Tuesday it repaired a technology glitch that had forced it to halt departures nationwide, briefly crippling one of the nation's biggest carriers on a busy travel day.

The Federal Aviation Administration said United Airlines had requested the ground stop as a result of a communications issue.

United Airlines says a fire alarm at the company’s operations center led to a brief nationwide ground stop of all United ...