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 lawsuit filed in California alleges that Southwest illegally operated chronically delayed flights and disrupted passengers’ travel plans.

The flights operated between Chicago Midway International Airport and Oakland, California ... announced an enforcement action against Frontier Airlines for chronically delayed flights.

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

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

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

The federal government is suing Southwest Airlines and fined Frontier Airlines, accusing the carriers of illegally operating multiple chronically delayed flights and causing significant problems for travelers.

The agency said the U.S. District Court lawsuit it filed in California on Wednesday alleges ... The department fined Frontier Airlines $650,000 in civil penalties, with $325,000 to be paid to ...

The United States Department of Transportation (DOT) announced a lawsuit against Southwest Airlines and a fine against Frontier Airlines as part of a crackdown on how carriers handle flight delays. According to The Associated Press, the DOT filed the ...

The agency said the U.S. District Court lawsuit it filed in California on Wednesday alleges ... The department fined Frontier Airlines $650,000 in civil penalties with $325,000 to be paid to ...

Spirit, which filed for bankruptcy protection last year, says it has rejected the new Frontier overture but would be open to a higher offer.