The easiest way to get here by plane is to fly into MLI (Moline, IL) here in the Quad Cities. It tends to be a little more expensive than flying into Chicago, but MLI is pretty convenient and we usually just pay the extra money to fly in and out of MLI when we travel. There are several car rental companies located at the airport as well. The airport is about 45 minutes from the wedding venue and our hotels with room blocks in Clinton, IA.
You may be able to find cheaper flights in and out of Chicago. Chicago is about 2.5-3 hours away from the wedding venue and our hotels with room blocks in Clinton. If you plan to spend some time in Chicago anyway while you are in the midwest, booking your flights out of Chicago would probably be your best bet.
A third option is to check airline fares for Cedar Rapids, Iowa (CID). Cedar Rapids is about 1.5 hours away from the wedding venue and our hotels with room blocks in Clinton.