With Ohio now recognizing the Illinois License to Carry (effective in March, 2015), Illinois residents can now carry in 23 other states!
The graphic below shows all the states that will allow you to carry with your Illinois license, except that Ohio is not yet indicated, as the effective date is still a month off.
Remember that you must abide by the laws of the state in which you are carrying, NOT the state that you come from. Go to www.HandgunLaw.us and click on each state you travel to in order to download a complete pdf with all the pertinent laws.
(Click on Map to Enlarge)