The United Airlines flight crew evacuated all 119 passengers in order for bomb and arson units to search the plane.

A bomb threat caused a flight bound for Chicago's O'Hare International Airport to make an unexpected landing on Sunday, reported KSDK.

While cruising at 36,000 feet, Flight 1093 was struck by an object with enough force to crack the aircraft’s cockpit ...

A United Airlines plane appears to have collided with a weather balloon while cruising over Utah at 36,000 feet last week, fracturing layers of its windshield and forcing an emergency landing. A ...

Plane Hits Weather Balloon FILE - The United Airlines logo can be seen on a rope line at O'Hare International Airport, May 17, 2011. (AP Photo/Brian Kersey, File ...