Southwest Airlines cancels more flights, draws federal investigation

Southwest Airlines scrubbed thousands of flights again Tuesday in the aftermath of the massive winter storm that wrecked Christmas travel plans across the US, and the federal government said it would investigate why the company lagged so far behind other carriers.

A day after most US airlines had recovered from the storm, Southwest called off about 2,600 more flights on the East Coast by late afternoon. Those flights accounted for more than 80% of the 3,000 trips that got canceled nationwide Tuesday, according to tracking service FlightAware.

And the chaos seemed certain to continue. The airline also scrubbed 2,500 flights for Wednesday and nearly 1,400 for Thursday as it tried to restore order to its mangled schedule.

At airports with major Southwest operations, customers stood in long lines hoping to find a seat on another flight. They described waiting hours on hold for help, only to be cut off. Some tried to rent cars to get to their destinations sooner. Others found spots to ..