The DOT is aiming to send a message to all airlines that it will go to court to enforce passenger protections.

The lawsuit alleges Southwest illegally operated chronically delayed flights and disrupted passengers' travel plans.

Southwest Airlines stock fell Thursday after the Department of Transportation sued the airline over a pair of "chronically ...

President Joe Biden's administration on Wednesday sued Southwest Airlines , accusing the carrier of illegally operating ...

The Department of Transportation is suing Southwest Airlines, accusing it of operating two “chronically delayed flights” in ...

The DOT filed a lawsuit against Southwest Airlines, citing a pattern of chronic delays, as the government pushes for stricter ...

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

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

Southwest Airlines was sued in federal court by the Department of Transportation, while Frontier was hit with a $650,000 fine ...

The US Department of Transportation (USDOT) is suing Southwest Airlines for “illegally operating multiple chronically delayed ...

A lawsuit filed against Southwest alleges the airline operated multiple “chronically delayed” flights affecting thousands of ...

The lawsuit filed in California alleges that Southwest illegally operated chronically delayed flights and disrupted ...