Frontier is offering a "divorce your old airline" deal after Southwest ends its longstanding "bags fly free" policy.

Frontier Airlines is offering a complimentary checked bag, carry-on, seat selection, and flight changes for nonstop flights ...

Frontier Airlines is also making major upgrades including UpFront Plus seating, which offers extra legroom and a guaranteed ...

Frontier Airlines took a dig at Southwest by offering newer amenities for travelers as it ushered in its so-called "New Frontier." ...

On March 18, the airline announced low fares, free checked bags and free flight changes. Frontier seized the opportunity ...