Approximately 1,300 flights were canceled across the United States on Sunday following a severe winter storm that pummeled New England on Saturday. Flight tracking website FlightAware’s data shows that as of 10:30 a.m. ET, some 1,380 flights were scrapped by airlines nationwide. Another 647 delays were reported, according to the website, which also showed that about 1,200 international flights were canceled—led by China Eastern Airlines, which saw about 351 cancelations on Sunday. Several states declared emergencies ahead of the storm, which formed in the Atlantic Ocean off the coast of North and South Carolina and moved north, hammering Boston, Nantucket, Long Island in New York, and Maine. As of Sunday morning, at least 60,000 homes and businesses were without power in Massachusetts, data from PowerOutage.us shows. LaGuardia Airport in Queens, New York City, and Boston’s Logan International Airport each saw more than 200 flights cancelations on Sunday, FlightAware data shows. The …