Flight O'Hare International Airport departs from Chicago O'Hare International Airport at 17:55 and arrives at Washington Dulles International Airport at 20:56.
The flighttime is about 2h 01m. The distance travelled ("as the bird flies"): 1162 Km. So the average speed is roughly 576 Km.
There is an 1 hour time difference between Chicago and Washington
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