Flights from Chicago O'Hare International Airport to Illinois

Flight deals from Chicago O'Hare International Airport to Illinois

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

Peoria.฿4,584 per passenger.Departing Fri, Oct 17.One-way flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departing from Chicago O'Hare International on Fri, Oct 17, arriving in Greater Peoria.Price includes taxes and charges.From ฿4,584, select.

Springfield.฿6,341 per passenger.Departing Thu, Nov 13.One-way flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departing from Chicago O'Hare International on Thu, Nov 13, arriving in Springfield.Price includes taxes and charges.From ฿6,341, select.

Moline.฿6,558 per passenger.Departing Fri, Nov 21.One-way flight with American Airlines.Outbound direct flight with American Airlines departing from Chicago O'Hare International on Fri, Nov 21, arriving in Moline.Price includes taxes and charges.From ฿6,558, select.

Champaign.฿12,063 per passenger.Departing Thu, Oct 16.One-way flight with American Airlines.Outbound direct flight with American Airlines departing from Chicago O'Hare International on Thu, Oct 16, arriving in Champaign.Price includes taxes and charges.From ฿12,063, select.

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Flying from Chicago O'Hare International Airport to Illinois

Arm yourself with these facts on the fly.

Cheapest flight found	฿4,584
Cheapest month to fly	October
Average flight time	1 hr, 13 mins
Average flights per week	866
Most popular airline	American Airlines

How to find cheap flights from Chicago O'Hare International Airport to Illinois

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from Chicago O'Hare International Airport to Illinois. Other savvy travelers recently found round-trip flights from ฿4,340 and one-way tickets from ฿4,584. Ready to join them? Here are a few tips to help you do it the smart way.

Fly in October

The cheapest time to fly from Chicago O'Hare International Airport to Illinois is currently October.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from Chicago O'Hare International Airport to anywhere you choose in Illinois.

Watch as flight prices go up and down

With Price Alerts, we'll let you know when flight prices from Chicago O'Hare International Airport to your chosen airport in Illinois go up or down so you can book when the time is just right.

Relax – these are fee-free plane tickets

With us, there are no added fees – the Illinois Airport to Illinois flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

Are there any direct flights from Chicago O'Hare International Airport to Illinois?

Yes – direct flights currently operate from Chicago O'Hare International Airport to Marion Airport, Decatur Airport, and Greater Peoria Airport in Illinois.

What is the average price of a flight from Chicago O'Hare International Airport to Illinois?

We looked at all of the upcoming round-trip flights from Chicago O'Hare International Airport to Illinois we could find over the next 12 months. It looks like ฿4,340 is the best price. This is good, compared to the average Illinois ticket price of ฿5,250.

What is the cheapest month to fly from Chicago O'Hare International Airport to Illinois?

The cheapest month to fly from Chicago O'Hare International Airport to Decatur Airport is currently October.
The cheapest month to fly from Chicago O'Hare International Airport to Marion Airport is currently October.
The cheapest month to fly from Chicago O'Hare International Airport to Moline Airport is currently October.
And the cheapest month to fly from Chicago O'Hare International Airport to Greater Peoria Airport is usually October.

On which upcoming date is it cheapest to fly from Chicago O'Hare International Airport to Illinois?

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 Wednesday, October 29, 2025.

If I'm flying from Chicago O'Hare International Airport, where in Illinois is cheapest to fly to?

If you're flying from Chicago O'Hare International, the cheapest city in Illinois to fly into is Marion. The cheapest airport serving Marion at the moment is Marion.