Flight O'Hare International Airport departs from Chicago O'Hare International Airport at 11:25 and arrives at Seoul Incheon International Airport at 17:15.
The flighttime is about 15h 50m. The distance travelled ("as the bird flies"): 16193 Km. So the average speed is roughly 1023 Km.
There is an 14 hour time difference between Chicago and Seoul
