FILE - In this Friday, Jan. 22, 2016, file photo, a traveler speaks on the phone as he views the arrival and departure board at San Francisco International Airport in San Francisco. U.S. airlines have canceled several thousand flights through Tuesday, March 14, 2017, as a winter storm heads toward the Northeast. The major airlines are waiving ticket-change fees that range up to $200 for customers who want to change their travel plans. Restrictions vary by airline. (AP Photo/Ben Margot, File)
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