According to the flight tracking website, FlightAware, there have been 862 flights canceled so far on Sunday.
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A total of 4,041 flights have been delayed across the United States.
Chicago O'Hare saw the most cancellations and delays on Sunday, with approximately 12% of flights canceled and about 35% of flights delayed.
Chicago saw heavy rain Sunday, including a flash flood warning that was in place until 3 p.m. local time for portions of Cook County.
Weekend of cancellations
Saturday saw a total of 657 flight cancellations and 7,267 delays within, into or out of the United States.
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American Airlines canceled 4% of its flights and 24% of its Saturday flights were delayed, according to FlightAware.
United had 4% of its flights canceled and 23% delayed, followed by Delta with 2% canceled and 22% of its Saturday flights delayed, FlightAware notes.
41% of JetBlue's flights and 36% of Southwest's flights were also delayed on Saturday, according to the website.
The video in the player above is from a previous report.
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