Thousands of flights within, into, or out of the United States were canceled or delayed on Jan. 16 and 17 as winter storm Izzy battered the southeastern United States with heavy sleet and snow, knocking out power to tens of thousands of households.
A total of 3,059 flights within, into or out of the United States were canceled Sunday, while 5,056 flights were delayed, according to FlightAware data.