A historic winter storm has significantly impacted travel across the United States, leading to widespread flight cancellations and transportation delays. At Pittsburgh International Airport, nearly 100 flights were canceled on Sunday, with 87 cancellations and eight delays reported, and an additional 19 cancellations expected for Monday. The storm is expected to bring 10 to 16 inches of snow to the region, prompting travel restrictions and road closures across Pennsylvania. Pittsburgh Regional Transit reported delays of up to 60 minutes due to snow accumulation, with some bus services suspended. Philadelphia International Airport canceled over 600 flights on Sunday, affecting most of the 650 scheduled flights, as a precautionary measure against the severe weather. Travelers were advised to confirm their flight status directly with airlines and review rebooking options. The storm caused heavy snowfall, with accumulations of over a foot expected in some areas, and led to the suspension of SEPTA bus routes and regional rail services in Philadelphia. Syracuse Hancock International Airport canceled nearly half of its flights—21 departures and 18 arrivals—due to the storm, which is expected to bring 1 to 2 feet of snow in Upstate New York. The storm, one of the strongest in years, has knocked out power in the South and caused thousands of flight cancellations nationwide, with over 4,000 cancellations reported across the country. The storm has also led to school closures in the Philadelphia area and prompted New Jersey Governor Mikie Sherrill to declare a State of Emergency. Overall, the winter storm has caused extensive disruptions to air travel, road travel, and public transit, with officials urging caution and preparedness as the severe weather continues.