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

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 ...

"I don't care which side of the aisle you're on," said Brian Wahlstrom, who photographed the pilot now facing an internal ...

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

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

"Think of this as the ultimate 'divorce your old airline' deal," Frontier CEO Barry Biffle said in the release—which, by the way, didn't mention Southwest by name. "If travelers show us the love, ...

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

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 unveiled sweeping changes to its product and customer service offerings, a shift the low-cost carrier has dubbed “The New Frontier.” ...

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.