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

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 Airlines is being sued and Frontier Airlines fined over chronic flight delays by the Department of Transportation, the DOT announced Wednesday. Why it matters: Wednesday's announcement by the outgoing Biden administration's Transportation Secretary,

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

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

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.

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.

Transportation Secretary Pete Buttigieg said airlines have a legal obligation to ensure that their schedules list realistic departure and arrival times.

The head of the Department of Transportation, Pete Buttigieg, is suing Southwest Airlines alleging unfair and deceptive trade practices for operating flights that experienced serial delays ...

we are suing Southwest Airlines for disrupting passengers’ travel with unlawful chronic flight delays,” Transportation Secretary Pete Buttigieg said in a statement. “Airlines have a legal ...

The agency said the U.S. District Court lawsuit it filed in California on Wednesday alleges that Southwest ... Pete Buttigieg said in a statement. “Today’s action sends a message to all ...