Cheap Flights from Chicago to Illinois from $251 Return

Flight deals from Chicago to Illinois

Looking for a cheap last-minute deal or the best return flight from Chicago to Illinois? If you want to travel next month, return fares start from $251. Find the lowest prices on one-way and return tickets right here.

Decatur.$251 per passenger.Departing Wed, 6 May, returning Sun, 10 May.Return flight with United.Outbound direct flight with United departs from Chicago O'Hare International on Wed, 6 May, arriving in Decatur.Inbound direct flight with United departs from Decatur on Sun, 10 May, arriving in Chicago O'Hare International.Price includes taxes and charges.From $251, select.

Champaign.$388 per passenger.Departing Sun, 12 Jul, returning Sat, 18 Jul.Return flight with United.Outbound direct flight with United departs from Chicago O'Hare International on Sun, 12 Jul, arriving in Champaign.Inbound direct flight with United departs from Champaign on Sat, 18 Jul, arriving in Chicago O'Hare International.Price includes taxes and charges.From $388, select.

Moline.$403 per passenger.Departing Tue, 12 May, returning Sat, 30 May.Return flight with United.Outbound direct flight with United departs from Chicago O'Hare International on Tue, 12 May, arriving in Moline.Inbound direct flight with United departs from Moline on Sat, 30 May, arriving in Chicago O'Hare International.Price includes taxes and charges.From $403, select.

Bloomington.$403 per passenger.Departing Mon, 1 Mar, returning Wed, 10 Mar.Return flight with United.Outbound direct flight with United departs from Chicago O'Hare International on Mon, 1 Mar, arriving in Central Illinois Regional.Inbound direct flight with United departs from Central Illinois Regional on Wed, 10 Mar, arriving in Chicago O'Hare International.Price includes taxes and charges.From $403, select.

Peoria.$405 per passenger.Departing Thu, 30 Jul, returning Mon, 17 Aug.Return flight with American Airlines.Outbound direct flight with American Airlines departs from Chicago O'Hare International on Thu, 30 Jul, arriving in Greater Peoria.Inbound direct flight with American Airlines departs from Greater Peoria on Mon, 17 Aug, arriving in Chicago O'Hare International.Price includes taxes and charges.From $405, select.

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Flying from Chicago to Illinois

Arm yourself with these facts on the fly.

Cheapest flight found	$251
Cheapest month to fly	May
Average flight time	58 mins
Cheapest airport to fly from	Chicago O'Hare International
Most popular airline	American Airlines

How to find cheap flights from Chicago to Illinois

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from Chicago to Illinois. Other savvy travellers recently found return flights from $251 and one-way tickets from $91 one-way. Ready to join them? Here are a few tips to help you do it the smart way.

Fly from Chicago O'Hare International into Decatur

At the moment, the lowest priced flight tickets to Illinois are from Chicago O'Hare International Airport to Decatur Airport.

Fly in May

We crunched the flight calendar and found the cheapest time to fly from Chicago to Illinois is currently May.

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 to anywhere you choose in Illinois.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from Chicago to Illinois go up or down so you can book when the time is just right.

Relax – these are fee-free flight tickets

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

Frequently asked questions

What's the average Chicago to Illinois flight price?

We looked at all of the upcoming return flights from Chicago to Illinois we could find over the next 12 months. It looks like $251 is the best price. This is good, compared to the average Illinois ticket price of $370.

What is the cheapest month to fly from Chicago to Illinois?

The cheapest month to fly from Chicago to Moline Airport is usually May. The cheapest month to fly from Chicago to Champaign Airport is usually July. The cheapest month to fly from Chicago to Central Illinois Regional Airport is usually March. And the cheapest month to fly from Chicago to Decatur Airport is usually May.