If you want to travel between Chicago, Carbondale, or one of the intermediate stops, check out this page on Amtrak Saluki Schedule for more information.
The Missouri Runner travels between Kansas City, MO, and St Louis, MO; get the printable Amtrak Missouri Runner Schedule and more info on this train.
Take an Amtrak train between Chicago, IL, and Quincy, IL, or an intermediate stop; this page has the Amtrak Carl Sandburg Schedule and more info on the train.
Amtrak Heartland Flyer Schedule is here for those traveling between Fort Worth, TX, and Oklahoma City, OK, plus essential information you can use for planning.