Southwest Airlines flight cancellations continue to snowball

A Southwest Airlines jet arrives at Sky Harbor International Airport, Wednesday, in Phoenix. Travelers who counted on Southwest Airlines to get them home suffered another wave of canceled flights Wednesday, and pressure grew on the federal government to help customers get reimbursed for unexpected expenses they incurred because of the airline’s meltdown. (AP Photo/Matt York)

A Southwest Airlines employee helps a traveler search for bags amongst hundreds of other checked bags at baggage claim at Midway International Airport as Southwest continues to cancel thousands of flights across the country Wednesday in Chicago. (AP Photo/Erin Hooley)

DALLAS — Travelers who counted on Southwest Airlines to get them home suffered another wave of canceled flights Wednesday, and pressure grew on the federal government to help customers get reimbursed for unexpected expenses they incurred because of the airline’s meltdown.