Low-cost air carrier Frontier Airlines is adding three new routes this spring, connecting more destinations across the U.S.

In December, Frontier launched five new nonstop routes out of TPA including flights to Boston, Portland, Maine and Burlington ...

Low-cost carrier Frontier Airlines will be adding two weekly nonstop flights between Charlotte Douglas International Airport ...

Spirit Airlines cut a dozen routes this week, including several seasonal spring break flights, as the airline appeared to reject yet another merger attempt from fellow budget carrier Frontier ...