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

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

Southwest Airlines is being sued and Frontier Airlines fined over chronic flight delays by the Department of Transportation, ...

Yesterday, the United States and U.S. Department of Transportation (DOT) disclosed a lawsuit against Southwest Airlines, ...

The United States government is suing Southwest and Frontier Airlines, alleging "chronically delayed flights." ...

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

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 ...

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

As part of a regulatory crackdown on “chronically” late flights, federal transport regulators are suing the carrier after ...

What to know:Southwest Airlines offers a different experience. Here's how it works. The release also announced an enforcement action against Frontier Airlines for chronically delayed flights.