Frontier Airlines CEO Barry Biffle defends the ultra-low-cost airline model as viable, despite industry criticism and ...

Frontier Airlines is offering a limited-time deal that boasts “nearly two years of unlimited travel for just $299,” but there ...

Frontier Airlines' stock jumped 14.5% on Tuesday after Deutsche Bank analysts upgraded its rating in the wake of Spirit ...

Frontier Airlines announced 20 new routes, just two of which aren't offered by struggling rival Spirit, which previously ...

Frontier Airlines has announced a new seating option. Customers in those seats will get a guaranteed window or aisle seat with extra legroom, and an empty middle seat. These UpFront Plus seats are ...