Flight International Thurgood Marshall Airport departs from Baltimore International Thurgood Marshall Airport at 10:53 and arrives at Chicago O'Hare International Airport at 12:03.
The flighttime is about 2h 10m. The distance travelled ("as the bird flies"): 1250 Km. So the average speed is roughly 577 Km.
There is an 1 hour time difference between Baltimore and Chicago
