An unruly man was restrained by passengers on a flight after he began kicking seats and hitting a window, eventually breaking the Plexiglas.

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 ...

Frontier Airlines is attempting for a second time to merge with the now bankrupt Spirit Airlines, which declared bankruptcy ...

Frontier Airlines has again proposed merging with struggling ... Get top local stories in San Diego delivered to you every morning. Sign up for NBC San Diego's News Headlines newsletter.

The Federal Aviation Administration announced that Frontier Airlines implemented a ground stop for all destinations, but lifted the order shortly thereafter.

Frontier is making another attempt to merge with bankrupt Spirit Airlines. Spirit is skeptical, saying Frontier’s offer is less beneficial than its own bankruptcy exit plan. Frontier previously ...

Spirit Airlines has rejected yet another takeover offer from discounter Frontier Airlines of Denver, but told its persistent suitor that it would listen to a sweetened proposal. Both airlines on ...

Low-cost carrier Frontier Airlines will be adding two weekly nonstop flights between Charlotte Douglas International Airport ...

Frontier Airlines is attempting for a second time to merge with the now bankrupt Spirit Airlines, which declared bankruptcy late last year as budget airlines struggle NEW YORK -- Frontier Airlines ...