Spirit's troubles arise from a convergence of challenges including low domestic leisure travel demand and high ...

Spirit Airlines has warned of going-concern doubts, just months after emerging from bankruptcy as weak domestic demand and ...

Spirit Airlines stock plummeted 40% after it warned it could go out of business, while Frontier rose 29%. Less competition could mean higher prices.

Allegiant Air will begin flying out of Atlantic City International Airport beginning later this year, becoming the second ...

In a bid to "return to profitability," the Florida-based airline announced plans to furlough, demote flight crews starting in ...

Travelers in the U.S. may soon have one less low-cost airline option as Spirit Airlines says it could be permanently grounded ...