(CNN) — More than 1,000 flights were canceled Wednesday as many holiday travelers looked to return home while a powerful series of storms advanced on the Northeast.
The bad weather affected travel throughout the United States. According to the flight-tracking website FlightAware, about 1,400 flights had been called off Wednesday with more than 130 Thursday flights canceled already.
“Delta has 200 system cancellations. That includes Delta flights and Delta connection flights. And that is centered around where the storm has been and where it is moving,” spokesman Morgan Durrant said.
American Airlines canceled 150 flights, spokesman Matt Miller said.
Blustery bands of precipitation moved through the mid-Atlantic states Wednesday afternoon, threatening to bring snowstorms and blizzards to the Northeast. Some places could expect to see more than a foot of snow, CNN Meteorologist Bonnie Schneider said.
Philadelphia International Airport had some arrival delays of 3 1/2 hours on Wednesday, the Federal Aviation Administration said.
Airports in the New York City area were reporting delays of more than one hour, with Newark International Airport experiencing an average delay of two and a half hours. Flights bound for LaGuardia Airport were being held in their originating cities until 7:30 p.m. ET.
Greyhound listed almost 50 canceled bus routes on its website.
Amtrak listed only one service disruption, because of a mudslide in the Pacfic Northwest, on amtrak.com.
Travelers are advised to check before leaving home to see if their flights are postponed or canceled.
CNN’s Todd Sperry contributed to this report.