A significant winter storm has led to chaotic travel conditions, resulting in the cancellation and delay of more than 12,500 flights nationwide. Chicago airports have been heavily impacted, with over 1,000 flights canceled due to hazardous weather. The storm has caused disruptions across the Midwest and East Coast, with travelers facing long TSA lines and further delays exacerbated by a partial government shutdown. Numerous airports, including LaGuardia, JFK, and Philadelphia International, reported hundreds of cancellations and delays. Travelers are urged to check their flight status while navigating the difficult conditions created by the severe weather.