Low-cost carrier Frontier Airlines has announced 23 new routes as part of a significant expansion. The new routes center around the domestic U.S. and Mexican markets and are timed to begin service ...

Frontier Airlines is plotting a big network shake-up that's set to take effect right before the peak 2025 summer travel season gets into full swing. The Denver-based ultra-low-cost carrier will add ...

Frontier Airlines is pushing deeper into Spirit Airlines’ core markets, unveiling 20 new routes as it seeks to become the “No. 1 low-fare carrier in the top 20 U.S. metro areas.” The additions include ...