Chicago, Dec 5 (IANS) Over 325 flights were cancelled at Chicago's O'Hare International Airport due to heavy snowfall Saturday morning, reports Xinhua.
Flights in and out of O'Hare have also been delayed by about 30 minutes, Chicago Department of Aviation said.
Aviation officials are advising travellers to check their airlines' website to find out the status of flights.
The National Weather Service has forecast snowfall of three to five inches for much of the area.