Ok guys,
I'm from GA and will be flying into Chicago in September. From there, we will be driving to South Bend, IN to go to the Notre Dame/Georgia game. We fly in Wed and stay till Sunday. On Friday, we will be coming back to Chicago to catch a Cubs game. (not a cubs fan, sorry but I am a baseball fan and will always enjoy going to different stadiums) This will be my first time visiting your great state. My questions are:

1. I've never flown. What is the best way to get my CC on (if at all possible) the airplane?

Edit: to avoid further confusion, I am not talking about actually trying to conceal carry on the plane. I just want to get my firearm to the same place I am going.

2. What are the carrying laws in Illinois, both in the vehicle and on person?

3. If I can't carry in Chicago, will I be safe in the area of Wrigley?

4. If anyone knows, does Indiana recognize the CC permits of other states?

Thanks in advance for any information/input. If anyone has some links where I can find additional information, feel free to post them up. I have already researched some of these questions, but value some of the experienced's views on these topics.