For travel over the 4th of July holiday, fly nonstop from Minneapolis to Chicago for $187 roundtrip on American.
I found seats departing Minneapolis MSP on Wednesday, July 3, returning from Chicago ORD on Saturday, July 6.
You'll find lower fares available for non-holiday travel.
This fare includes a carry-on bag plus a small personal item. The first checked bag costs $30 each way.
Advanced seat assignments are included with this Main Cabin Economy fare.
A Basic Economy fare is $117 roundtrip, which also includes a carry-on bag plus a small personal item, but does not allow you to choose a seat in advance and does not allow ticket changes or upgrades. A checked bag is the same $30 fee each way.
Need a room in Chicago? Here's what's available for the Fourth of July dates on Hotelwatchdog.