Cheap flights from Chicago to Illinois from $53
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Illinois departing on 6/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Chicago to Illinois
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Spirit Airlines flights from Chicago to Illinois
Our best Spirit Airlines deals on Chicago to Illinois flight tickets
Frontier flights from Chicago to Illinois
Our best Frontier deals on Chicago to Illinois flight tickets
See travel insights to Illinois from
How to get the cheapest flight ticket from Chicago to Illinois
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest Chicago to Illinois flight route?
Fly from Chicago O'Hare Intl to Greater Peoria for the best Chicago - Illinois flight prices
What cabin class options are available on Chicago to Illinois flights?
There are 4 cabin classes available to choose from on Chicago to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
How many flights depart from Chicago to Illinois on average per day?
As of May 2025, there are 85 flights per day flying from Chicago to Illinois. The most common time of day flights depart is 8:00PM, with 43% of flights taking off in the afternoon.
How many flights depart from Chicago to Illinois on average per week?
595 flights are operational weekly from Chicago to Illinois as of May 2025. The most popular departure day for this route is Thu, with 22% of flights per week taking off on this day.
Cheap Chicago to Illinois flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago to Illinois
When did momondo last update prices for flights from Chicago to Illinois?
Prices for flights from Chicago to Illinois were last updated today.
How many operators does momondo search for flights from Chicago to Illinois?
The number of operators available for flights from Chicago to Illinois is 4 as of May 2025.
How old do you have to be to fly from Chicago to Illinois?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chicago to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Chicago to Illinois?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Chicago to Illinois is Canadair (Bombardier) Regional Jet (25.19% of total bookings). The next most popular plane models are Embraer 170 (11.85%), Canadair (Bombardier) Regional Jet 700 (9.63%), and Canadair (Bombardier) Regional Jet CRJ-550 (9.26%).
Best airlines flying from Chicago to Illinois
Compare and see reviews for airlines that fly from Chicago to Illinois with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $179 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $179 | Free Cancellation | Rating 7.4 8,696 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Chicago to Illinois?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Illinois. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Chicago to Illinois with flexible booking policies on momondo?
momondo does allow users to show only those flights to Illinois from Chicago which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Chicago to Illinois?
momondo helps you find the best flight between Chicago and Illinois by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from Chicago to Illinois right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Chicago to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.