Along with a free bag, some flights will be discounted to as low as $39 one-way for flights during the same time period.

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

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

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

One airline that wasted no time in responding to Southwest’s decision is Frontier Airlines. The ultra-low-cost carrier has ...

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

Travelers flying with Frontier Airlines can cross one extra fee off their list this summer: their checked bag.

Frontier Airlines announced Tuesday that all bookings for nonstop travel through Aug. 18 will receive a free carry-on bag, free seat selection, and free flight changes in its Economy Bundle. The ...

Last week, Southwest Airlines announced an end to its long-time policy of two-free checked bags. Frontier officials say customer response will help determine if its free service will become permanent.

Frontier Airlines is bringing back free checked bags for a limited time this summer. Here's how to get one on a trip out of Nashville.

Frontier Airlines has launched a new promotion to win over frustrated Southwest Airlines customers. This strategic initiative ...