A winter storm is hitting the Midwest with snow and wintry conditions, causing travel issues for many who were looking to get home following Thanksgiving. At least 450 flights had been canceled around the United States as of 7 a.m. ET, with the biggest impacts at Chicago's O’Hare Airport, according to FlightAware, a flight-data tracker.

The Chicago area got socked with one of the worst winter storms it's seen in years, and snowfall totals piled up across the region.

A major winter storm blasted parts of the Midwest and the Central U.S. this weekend with heavy snowfall, causing travel nightmares for millions of people as they return home from Thanksgiving plans.

Overall, more than 1,400 flights across the country were canceled Saturday, with the majority due to weather hitting the upper Midwest, according to FlightAware.

A major snowstorm in the Midwest and Great Lakes is affecting Thanksgiving travelers. The National Weather Service reports winter storm warnings from North Dakota to Ohio.

Yesterday’s record snowfall was tapering off throughout Sunday morning as the Winter Weather Advisory was still in effect.

A winter storm system is expected to intensify Saturday morning, bringing steady snow showers and creating potentially hazardous travel conditions across Illinois, Missouri, Iowa, Wisconsin and Michigan.

Forecasters are anticipating a winter storm to begin late Friday, with snow expected to fall up to an inch per hour into Saturday.