Snow: 500 flights canceled as storm snarls busy post-Thanksgiving Sunday

Snow: 500 flights canceled as storm snarls busy post-Thanksgiving Sunday  USA TODAY Chicago weather: Winter storm wreaks havoc on holiday travel, over 180 flights canceled  WLS-TV Millions under blizzard warning as winter storm impacts holiday travel  CNN Live Airline Flight Cancellations Info & Statistics FlightAware  FlightAware Snowstorm to unleash blizzard conditions across central US from Saturday night to Monday  AccuWeather.comFull coverage