A fire alarm at United Airlines' Chicago operations center triggered a brief nationwide ground stop, with employees ...

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

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

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

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

All flights at Denver International Airport were on a ground delay Thursday as thunderstorms swept across the state, threatening flash floods.

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

United Airlines says an issue that prompted a ground stop Tuesday has now been resolved and the ground stop lifted. There are a reported 211 delayed flights nationwide as a result of the ground ...

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

SAN FRANCISCO -- United Airlines issued a brief, nationwide ground stop due to a software update issue around midday Tuesday. The airline told the Federal Aviation Administration that the ...