Flights from Chicago O'Hare International Airport to Illinois

Flight deals from Chicago O'Hare International Airport to Illinois

Looking for cheap tickets from Chicago O'Hare International Airport to Illinois, or a last-minute trip? Find the lowest prices on one-way and return tickets right here.

Flying from Chicago O'Hare International Airport to Illinois

Arm yourself with these facts on the fly.
Cheapest flight foundP8,356, Decatur
Cheapest month to flyAugust
Average flight time1 hr, 11 mins
Average flights per week556
Most popular airlineAmerican Airlines

Frequently asked questions

Yes - direct flights currently operate from Chicago O'Hare International Airport to Decatur Airport, Greater Peoria Airport and Moline Airport in Illinois.
We looked at all of the upcoming return flights from Chicago O'Hare International Airport to Illinois we could find over the next 12 months. It looks like P8,356 is the best price. This is good, compared to the average Illinois ticket price of P12,974.
The cheapest month to fly from Chicago O'Hare International Airport to Central Illinois Regional Airport is currently August.
The cheapest month to fly from Chicago O'Hare International Airport to Greater Peoria Airport is currently August.
The cheapest month to fly from Chicago O'Hare International Airport to Champaign Airport is currently August.
And the cheapest month to fly from Chicago O'Hare International Airport to Moline Airport is usually August.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago O'Hare International Airport to Illinois on Monday, 18 August 2025.
If you're flying from Chicago O'Hare International, the cheapest city in Illinois to fly into is Decatur. The cheapest airport serving Decatur at the moment is Decatur.
The average flight time between Chicago O'Hare International Airport and Illinois is 1 hour and 10 minutes.