Flights from Chicago to Illinois

Flight deals from Chicago to Illinois

Looking for cheap flights from Chicago to Illinois, or a last-minute trip? Find the lowest prices on one-way and round-trip flights right here.

Flying from Chicago to Illinois

Arm yourself with these facts on the fly.
Cheapest flight found$127, Marion
Cheapest month to flyJuly
Average flight time57 mins
Cheapest airport to fly fromChicago O'Hare International
Most popular airlineAmerican Airlines

Frequently asked questions

We looked at all of the upcoming round-trip flights from Chicago to Illinois we could find over the next 12 months. It looks like $127 is the best price. This is good, compared to the average Illinois ticket price of $285.
The cheapest month to fly from Chicago to Quincy Airport is usually June. The cheapest month to fly from Chicago to Moline Airport is usually June. The cheapest month to fly from Chicago to Central Illinois Regional Airport is usually June. And the cheapest month to fly from Chicago to Champaign Airport is usually June.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Illinois on Monday, July 22, 2024.
Chicago O'Hare International Airport offers direct flights to Illinois.
If you're flying from Chicago, the cheapest city in Illinois to fly into is Marion. The cheapest airport serving Marion at the moment is Marion.
The average flight time between Chicago and Illinois is 56 minutes.
Most popular flights