Airline stocks were mixed on Friday after Bank of America upgraded American Airlines Group Inc. and downgraded Southwest Airlines Co. and JetBlue Airways Corp., predicting that the network carriers will continue to outperform low-cost airlines due to demand for premium travel.

The Department of Transportation is suing Southwest Airlines, accusing it of operating two “chronically delayed flights” in 2022 that resulted in 180 flight disruptions.

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

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

The Transportation Department is stepping up enforcement of persistent flight delays with a civil lawsuit against Southwest Airlines and a fine against Frontier Airlines.

The US Department of Transportation (USDOT) is suing Southwest Airlines for “illegally operating multiple chronically delayed flights and disrupting passengers’ travel,” according to a press release.

Airline stocks were mixed on Friday after Bank of America upgraded American Airlines Group Inc. and downgraded Southwest Airlines Co. and JetBlue Airways Corp., predicting that the network ...

WSJ’s ranking is also in line with the most recent North America Airline Passenger Satisfaction Study that J.D. Power released in May. That list named Delta the top airline for customer satisfaction, while Southwest scored the top spot in the economy segment.

Spirit Airlines has obtained pledges from its leading lenders to provide up to $300 million in financing for operations after the carrier exits Chapter 11 bankruptcy proceedings.

The Department of Transportation defines a flight to be chronically delayed if it is “flown at least 10 times a month and arrives more than 30 minutes late more than 50 percent of the time. Cancellations are included as delays within this calculation.”

Airlines hope to meet the traveler demand for premium flying, whether by offering more roomier seats in economy or upgrading higher-tier classes.