OK, If you rent a car in Indianapolis, you have about a 2 to 3 hour drive, with some heavy traffic. If you rent a car in Chicago, You have a 2.5 to 4 hour drive, the traffic can be insane. You will have to remember we have “keep to the right side” traffic flow. Indianapolis freeways are busy, depending on the time of day. Chicago freeways can be busy to impossible, you would have to be patient and expect traffic slowing, stopping. That is just the way it is. I’m no expert in any of these areas, and I tend to avoid city traffic whenever possible. I think you have busy traffic where you live as well, so this is all do-able. On airline ticket prices, check the Fort Wayne, Indiana airport (FWA) as a destination airport as well, and I or my wife Joy could give a ride to Argos. South Bend seems to be high priced, maybe because of Notre Dame University.