Getting around when you are new in a place can be quite hard sometimes, but not so in Chicago. The transit system is so well organized that it is very difficult to get lost. The subway is the best mode of transit in the city. If you do not want to encounter any problems, you should get a subway schedule and familiarize yourself with how the system works. You can get the schedule from travel guides, the internet and also from hotels in Chicago.
Schedules from Travel guides
it is possible to find some detailed Chicago travel guides that offer information on the different modes of travel that are available in the city. They contain all transit information, including subway schedules.
http://www.barbaradavid.com/chicago/subway.html
Schedules from Chicago Hotels
Most hotels in Chicago offer helpful travel information to their gusts. In some instances, you may even be presented with a subway schedule detailing the time of each departure and the cost of the tickets for each subway.
http://www.transitchicago.com/travel_information/schedules.aspx
Schedules from the Internet
Online transit companies also offer several lists of travel options for people who are traveling. This is a good place to look for subway schedules for the city of Chicago.
http://gochicago.about.com/od/gettingaroundchicago/a/cta_overview.htm