On Wednesday, the U.S. Department of Transportation (DOT) filed a lawsuit in a San Francisco court against Southwest Airlines over “unlawful, chronic flight delays,” U.S. Transportation Secretary Pete Buttigieg announced in a Jan. 15 statement.

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

The Transportation Department is stepping up enforcement of persistent flight delays with a lawsuit against Southwest Airlines ... Secretary Pete Buttigieg said in a statement. "Today's action sends a message to all airlines that the department is prepared ...

Airline CEOs didn't shed any tears with the departure of Pete Buttigieg. But the Biden administration's DOT secretary provided needed oversight of an industry that has had a lot its own way over time.

Yesterday, the United States and U.S. Department of Transportation (DOT) disclosed a lawsuit against Southwest Airlines, accusing the airline of chronically delayed flights and interrupting passengers’ travels.

Southwest Airlines’ stock was falling Thursday, after Citigroup downgraded the stock to sell from neutral, arguing that the valuation has risen while earnings quality and free-cash-flow conversion have deteriorated.

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

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

Airline CEOs have high-flying hopes for the new administration. They celebrated President Donald Trump's victory in November.

Robert F. Kennedy Jr., Tulsi Gabbard and Kash Patel are expected to be grilled by senators during their confirmation hearings.

The Transportation Department is stepping up enforcement of persistent flight delays with a lawsuit against Southwest Airlines and ... Transportation Secretary Pete Buttigieg said in a statement.