Fly All the Way? Half Way? Drive?

Planning to go down to Indy in the Easter weekend since I have half day off on Good Friday. It's a 6-hrs drive which far exceeded my self-set maximum of 3.5 hrs. Looking at flying to Indy from Madison, the price's approximately $350. There are other lower fares but the problem is that the return trip is early Sunday morning. Since I planned to go back to Purdue on Saturday, I preferred to stay in Indy for the morning/afternoon on Sunday.

The other options is to fly from another city than Madison - but that means I'll have to drive to whatever airport I choose. The candidates are: O'Hare, Midway and Milwaukee. Midway's further but Southwest does have flights to Indy from Midway so it will be the cheapest. If I pick O'Hare, most likely I'll stick with UA (which a price of ~$184, once again because I want to come back Sunday evening). Milwaukee actually is the leading choice right now. There is this airline called "Midwest" that I'd like to try previously; but while I was at Chicago/W. Lafayette it really wasn't to feasible as their hub is at Milwaukee. It's about an hour drive from Madison to Milwaukee so it's not too long. The ticket price is at $220 but it's a non-stop flight. It's a good pick I think.

And of course I can always try driving to Indy - probably most economical but I'll have to really ask myself if I want to drive that far. :P