The US Department of Transportation is flexing its muscles against airlines who operate chronically late flights.

Having assessed a first-of-its-kind fine for “chronic flight delays” against JetBlue Airways, federal regulators have now moved to penalize both Southwest Airlines and Frontier Airlines for similar ...

Southwest is disappointed that DOT chose to file a lawsuit over two flights that occurred more than two years ago," a ...

The DOT's moves come weeks after issuing a multi-million dollar fine against JetBlue.

The Transportation Department alleges Southwest Airlines was “illegally operating multiple chronically delayed flights.” ...

The Transportation Department is taking legal action against Southwest, alleging the airline illegally operated persistently ...

The US Department of Transportation has filed a lawsuit against Southwest and imposed a fine on Frontier for operating ...

The US Department of Transportation sued Southwest Airlines and fined Frontier Airlines for flight delays, seeking civil ...

The U.S. Transportation Department is suing Southwest Airlines and has fined Frontier Airlines over "chronically" delayed ...

The US Department of Transportation (DOT) has sued Southwest Airlines for allegedly operating numerous "chronically delayed" ...

Sean Duffy, Trump's pick for transportation secretary, says "we will craft clear regulations which balance safety, innovation ...

A new Senate report reveals airlines are generating billions of dollars on extra services like seat and baggage fees.