Air Canada and Jazz provide the following update for flights from Canada to the United States

27-Dec-2009: As a result of the new security measures imposed by Canadian and U.S. government authorities, flights from Canada to the United States continue to experience significant delays and cancellations. Northbound flights from the U.S. to Canada are also being impacted due to late inbound aircraft. Customers can also expect potential delays on other domestic and international flights due to airport congestion and delayed aircraft.