Snow Causes Flight Cancellations on East Coast Again CheapOair Staff January 12, 2011 general The latest snowstorm on the East Coast was the cause of extensive delays throughout the region. Port Authority officials reported that 675 flights were cancelled at LaGuardia Airport. Other airports such as Kennedy had 300 cancellations, while in New Jersey, Newark Liberty issued 440 cancellations. One airport actually closed. McArthur Airport closed in Long Island. Philadelphia wasn't hurt too bad. They only had to deal with two dozen cancellations. Source: FoxNews