Airlines have canceled more than 14,000 U.S. flights scheduled for this weekend as a massive winter storm swept across the country.

After sweeping through the South, the storm moved into the Northeast on Sunday, and was expected to dump about 30 to 60 centimetres of snow from Washington through New York and Boston.

Citing local authorities, USA Today reported at least 13 deaths in five US states, while the broadcaster CNN reported at least 11.