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

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

The Department of Transportation defines a flight to be chronically delayed if it is “flown at least 10 times a month and ...

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

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

The agency is seeking civil penalties against Southwest Airlines, and also fined Frontier Airlines for its continuous delays.

DOT sues Southwest Airlines, accusing the airline of chronic flight delays while citing unrealistic scheduling that disrupted passengers.

The Transportation Department is stepping up enforcement of persistent flight delays with a lawsuit against Southwest Airlines and a fine against Frontier Airlines. The agency said the U.S ...

(ABC 6 News) — The U.S. Department of Transportation says it is prepared to take airlines to court over flight delays. The ...

The Department of Transportation said that two Southwest Airlines routes arrived late nearly 180 times in a five-month period ...