New Delhi, Nov. 30 -- A powerful winter storm is sweeping across the Midwest, bringing heavy snow and hazardous conditions, causing travel headaches for Thanksgiving holiday travelers.

According to ABC News, at least 450 flights had been canceled across the United States as of 7 a.m. ET Sunday (November 30), with Chicago's O'Hare Airport experiencing the largest disruptions.

The news outlet citing flight tracker FlightAware stated that there were 179 cancellations at O'Hare early Sunday, including 110 departures. The airport reportedly faced even greater impacts on Saturday, with more than a thousand flights delayed or canceled due to the storm.

ABC News reported that O'Hare recorded approximately 8.4 inches of snow up to midnight Satu...