Flight cancellations pile up as major winter storm hits East Coast

(The Hill) -- Flight cancellations and delays are stacking up as a major winter storm makes its way across the East Coast.As of shortly after 10 a.m. EST, there were 1,525 flight cancellations and 1,931 flight delays within, into or out of the United States on Monday.Those flight cancellations hit the D.C. area particularly hard.At Ronald Reagan Washington National Airport (DCA), 60 percent of all outgoing flights were canceled, totaling 239 cancellations. At Baltimore/Washington International T