Twenty minutes into the flight from Denver to Houston, witnesses say the man was punching the seat in front of him.

A man aboard a Frontier Airlines flight was restrained by fellow passengers on Wednesday after damaging the plane window, ...

Passengers on a Frontier Airlines flight from Denver to Houston subdued a rowdy male passenger who broke a plane window ...

A crazed Frontier Airlines passenger was restrained by a group of fellow travelers with makeshift restraints after repeatedly ...