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

A passenger on a Frontier Airlines flight bound for Houston punched a window hard enough to break the plexiglass according to ...

"He was scary," a witness said. "He started kicking profusely and started punching the window." Passengers on board ...

A passenger aboard a Frontier Airlines flight to Houston had a violent outburst on Wednesday after being asked to move, ...

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

A man aboard a Frontier Airlines flight was restrained by fellow passengers on Wednesday after breaking the plexiglass of the ...

A crazed Frontier Airlines passenger was restrained by a group of fellow travelers with makeshift restraints after repeatedly punching the seat in front of him before then cracking a window with ...

Police said chaos erupted about 20 minutes into the flight from Denver to Houston when the man began punching the seat in front of him and the plane window.

"He was scary," a witness said. "He started kicking profusely and started punching the window." Passengers on board ...

Passengers on a Frontier Airlines flight leaving Denver for Houston restrained a man after he became combative.

DENVER — A passenger on a Frontier Airlines flight from Denver to Houston on Tuesday night had to be restrained midflight ...