Hurricane Sandy continued on a path toward the mid-Atlantic coastline, as millions of people braced for high winds, torrential rains and heavy flooding.
More than 6,800 commercial flights, including all departures and arrivals at metropolitan New York's three major airports, were suspended.
United Continental Holdings Inc. canceled 3,700 flights scheduled from Sunday through Wednesday. Delta said it would cancel all flights into and out of the New York area, as well as Philadelphia, on Sunday night. The airline also expected to suspend service Monday morning at roughly a dozen airports from Washington to Boston, with service expected to start again on Tuesday.
US Airways suspended all service at major airports in New York, Philadelphia and Washington through Monday. American Airlines and its regional carrier American Eagle canceled 140 flights on Sunday and another 1,431 flights scheduled for Monday through Wednesday in cities throughout the Northeast and Mid-Atlantic.
The hurricane, off the North Carolina coast Sunday, was expected to hit the New Jersey coastline on Monday night or early Tuesday.