A passenger on a Frontier Airlines flight had to be restrained by other travelers after he broke a plane window.

A man aboard to Houston became violent, cracking a window before passengers restrained him. Frontier reportedly declined charges.

A passenger aboard a Frontier Airlines flight to Houston had a violent outburst on Wednesday after being asked to move, punching and kicking in his seat until he cracked one layer of the plane’s window mid-flight.

"He was scary," a witness said. "He started kicking profusely and started punching the window." Passengers on board restrained the man with zip ties and a shoelace.

An unruly passenger on a Frontier Airlines flight was tackled by fellow passengers Tuesday after they say he began punching an aircraft window.

A passenger on a Frontier Airlines flight bound for Houston punched a window hard enough to break the plexiglass according to a video passengers took, which was obtained by ABC13. Passengers aboard the flight from Denver to Houston this week told ABC13 the passenger's fit of rage began after another passenger asked him to exchange seats with her.

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