When making a connection that is not guaranteed, at Chicago, is there a rule of thumb for how much time to allow between trains? With the long distance trains it is often reccomended to allow for an over night in chicago to be sure to make your outbound train. But what about the shorter inbound routes? For example, I will be taking the Hiawatha from Milwaukee to Chicago to catch the Capitol Limited with a 6:40 departcher time. My head says the 3:10 departure from the airport should leave me 2 hours and 10 minutes in Chicago. Taking the 1:10 seems extreme leaving me 4 hours of sitting time in Chicago. BUT, what if there is an accident, say a train / car incident? Added into this is my sit time in Milwaukee in case there is an issue with my 90 minute trip to the Milwaukee station. (allowing another 20 minutes here) And yes,I know there is lots to see in Chicago, but i have been there seen that on several other trips. Anyone want to share their rule of thumb?