Frontier's summertime deal appears to be in response to Southwest Airlines, which recently announced it will start charging for checked bags.

The low-cost air carrier is offering a promotion with reduced fares a free checked bag for travel through summer.

Frontier Airlines announced a new promotion on Tuesday, taking aim at rival Southwest over its recent decision to end unassigned seating and a long-standing policy of free checked bags. Travelers on ...

Frontier pounced on free bags as a winning value proposition after Southwest Airlines dropped its “two bags free” brand-defining policy.

Frontier Airlines seems to be taking advantage of a competitor’s recent policy change with the promotion of a temporary ...

Frontier announced the limited time offer a week after rival Southwest Airlines ended its "bags fly free" policy for most travelers.

DENVER — Frontier Airlines is capitalizing on the growing backlash against Southwest Airlines with a new promotion this ...

Frontier and American Airlines have rushed forward with new deals, in the wake of Southwest Airlines' controversial decision ...

Days after Southwest Airlines announced that it will no longer offer two free checked bags to most customers, Frontier has launched a “Your New Love” deal. “Breaking up with your old airline? We're ...

March 18 (UPI) --Frontier Airlines on Tuesday announced new amenities for travelers including a promotion for a free checked bag after competitor Southwest Airlines ended its free bags policy.

Frontier Airlines announced a new promotion on Tuesday, taking aim at rival Southwest over its recent decision to end unassigned seating and a long-standing policy of free checked bags.