I have never been to ORD but i do live in Dallas if VFR they most the time wont let us enter Bravo(but somtimes they do, depends on how busy) and for as landing at DFW its a $100 fee. I would not try it untill i was positive you could land there and im betting you theres going to be a fee. No way there going to let yoou do a touch and go lol