After filing for bankruptcy protection and going back and forth with Frontier Airlines — again — over a potential acquisition ...

DENVER — As Denver International Airport celebrates its 30th anniversary this month, two long-serving employees reflect on ...

The two airlines have sent proposals and counterproposals during a recent bid from Frontier to take over bankrupt Spirit ...

Passengers on a Frontier Airlines flight from Denver to Houston restrained a man after he punched a window and seat 20 ...

According to the Houston Police Department, a man on the flight was acting erratically and began punching the seat in front ...

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

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.

DENVER — Hundreds of flights at Denver International Airport were delayed or canceled Thursday morning. As of 8:30 a.m., 127 ...

Frontier Airlines is less than a month away from returning to Reno-Tahoe International Airport with nonstop flights to Las ...

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

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