Air distance from Chicago, USA to Aqtau, Kazakhstan is 6029.7 Miles (9703.9 Kilometers / 5236.2 Nautical Miles).
12 hrs, 31 mins is the flight duration between Chicago and Aqtau. This is the In-The-Air flight time. You should also add the taxi time, airport wait times and possible delays due to bad weather, etc. for the total flight duration time.