Tracking US flight delays and cancellations in charts

Andrew Wevers/Getty Images via CNN Newsource

A major winter storm has upended travel for many US airport hubs.

CNN is tracking how daily flight cancellations and delays to, from or within the United States compare to historical averages from FlightAware. The figures in the charts below update every 15 minutes.

On average, there were roughly 5,600 daily delays and about 340 daily cancellations last year, the FlightAware data shows.

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