US investigating December flight cancellations at Southwest

DALLAS The U.S. Transportation Department said Wednesday it is investigating whether Southwest Airlines deceived customers by knowingly scheduling more flights in late December than it realistically could handle.

The department said that scheduling too many flights would be considered an unfair and deceptive practice under federal law.

DOT is in the initial phase of a rigorous and comprehensive investigation into Southwest Airlines holiday debacle that stranded millions, the department said in a statement.

The Transportation Department added that it will hold Southwest accountable if the airline fails to follow federal rules about refunds and reimbursing customers for expenses when flights are canceled. The agency said it will leverage the full extent of its investigative and enforcement power to protect consumers.

Southwest said its holiday schedule was thoughtfully designed with a solid plan to operate it, and with ample staffing.