Snow has cancelled nearly 1,200 flights in Chicago Monday and more than 1,500 nationwide as those from the Midwest to the South to the Northeast brace for a major temperature plunge.

A quick-moving storm has brought accumulating snow to the Midwest and the Rockies, transforming highways into sheets of ice and sending cars veering off roads.

One plane in Chicago even slid off the runway due to icy conditions while landing at O’Hare International Airport Monday morning, American Airlines said. No one was hurt, according to the airline.

“As soon as we landed, we could start feeling something a little off there and we tried to do a little turn and that’s when we started going sideways,” passenger Shaun Steele told ABC Chicago station WLS. “There was no visibility at all,” added passenger Luis Torres Curet. Read more Read also: Pentagon official testifies Trump directed freeze on aid to Ukraine Snow has cancelled nearly 1,200 flights in Chicago Monday and more than 1,500 nationwide as those from the Midwest to the South to the Northeast brace for a major temperature plunge. Snow has cancelled nearly 1,200 flights in Chicago Monday and more than 1,500 nationwide as those from the Midwest to the South to the Northeast brace for a major temperature plunge.

Snow has cancelled nearly 1,200 flights in Chicago Monday and more than 1,500 nationwide as those from the Midwest to the South to the Northeast brace for a major temperature plunge.

Snow has cancelled nearly 1,200 flights in Chicago Monday and more than 1,500 nationwide as those from the Midwest to the South to the Northeast brace for a major temperature plunge.

Snow has cancelled nearly 1,200 flights in Chicago Monday and more than 1,500 nationwide as those from the Midwest to the South to the Northeast brace for a major temperature plunge.