Cheap flights from Chicago (CHI) to Illinois from $46
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
What is the cheapest month to fly from Chicago to Illinois?
Flights from Chicago to Illinois lean towards being more expensive in July. Prices are generally better when you fly from Chicago to Illinois in October, with the cheapest ticket starting at $138.
When is the cheapest time to fly from Chicago to Illinois (CHI - IL)?
When flying from Chicago to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Cheap Delta flights from Chicago to Illinois
Explore cheap flight options specifically provided by Delta for the route between Chicago and Illinois. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 25, 2024.
Take a peek at the cheapest Delta flights we've detected traveling from Chicago to Illinois. Come back soon if you're not finding the exact deal you're looking for.
Cheap American Airlines flights from Chicago to Illinois
Explore cheap flight options specifically provided by American Airlines for the route between Chicago and Illinois. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 25, 2024.
Some of the best deals we've found on American Airlines flights traveling from Chicago to Illinois. Deals frequently update to provide users with more options.
Cheap Chicago to Illinois flights in April & May 2024
Find cheap flight options from Chicago to Illinois specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,073,952 searches. Prices were last updated on April 25, 2024.
Listed are some of the best fares we've found on flights departing from Chicago to Illinois in 2024. Check back in a little while for more flight options.
Chicago to Illinois 2024 flight deals
Discover exclusive flight deals for travel between Chicago and Illinois in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 25, 2024.
Listed are some of the best fares we've found on flights departing from Chicago to Illinois in 2024. Check back in a little while for more flight options.
Non-stop flights to Illinois from Chicago
Discover non-stop flight options from Chicago to Illinois. Find direct flights with no layovers, providing a convenient travel experience. Explore non-stop flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 25, 2024.
To help reduce your travel time, choose from one of these non-stop flights from Chicago to Illinois. Search for alternative flights from Chicago to Illinois by utilizing the search form above.
Chicago to Illinois flights leaving soon
Find last-minute flight options from Chicago to Illinois for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 25, 2024.
Consider one of these great deals we found on last-minute flights from Chicago to Illinois. Users should be sure to double check the price, date, and time of their last-minute flight.
One-way flights to Illinois from Chicago
Search for one-way flight options from Chicago to Illinois. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 25, 2024.
Users traveling one-way from Chicago to Illinois can select one of these great deals. Those seeking round-trip flights from Chicago to Illinois should utilize the search form at the the top of the page.
Find flights from Chicago to Illinois within your budget
Customize your flight search to find flights from Chicago to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 25, 2024.
Fly from
Fly to
Budget
$97 - $244
Route
Depart
Return
Price
Chicago O'Hare IntlLambert-St Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Wed 5/22
Nonstop1h 20m
Lambert-St Louis
Wed 5/29
Nonstop1h 16m
Chicago O'Hare IntlLambert-St Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Sat 5/25
Nonstop1h 12m
Lambert-St Louis
Sun 5/26
Nonstop1h 17m
Chicago O'Hare IntlLambert-St Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Wed 5/15
Nonstop1h 20m
Lambert-St Louis
Fri 5/17
Nonstop1h 16m
Chicago O'Hare IntlLambert-St Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Wed 5/8
1 stop19h 20m
Lambert-St Louis
Sat 5/11
1 stop19h 40m
Chicago O'Hare IntlLambert-St Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Tue 5/14
1 stop3h 05m
Lambert-St Louis
Tue 5/21
1 stop7h 06m
Chicago O'Hare IntlDecatur Arpt
ORD - DEC
ORDDEC
Chicago O'Hare Intl
Wed 5/22
Nonstop1h 07m
Decatur Arpt
Wed 5/29
Nonstop1h 05m
Chicago MidwayLambert-St Louis
MDW - STL
MDWSTL
Chicago Midway
Sat 5/25
1 stop4h 52m
Lambert-St Louis
Sun 5/26
1 stop4h 51m
Chicago O'Hare IntlLambert-St Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Tue 5/21
2 stops27h 46m
Lambert-St Louis
Sat 5/25
1 stop16h 40m
Chicago MidwayLambert-St Louis
MDW - STL
MDWSTL
Chicago Midway
Wed 5/15
1 stop11h 14m
Lambert-St Louis
Thu 5/16
1 stop12h 49m
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated April 25, 2024.
To help decide which airline to fly from Chicago to Illinois, see what other customers have to say about Delta, American Airlines and United Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
Overall
Comfort
Food
Entertainment
Boarding
Reviews
I was traveling with a companion that utilizes a scooter to get around. We have flown together many times and used other airlines. Southwest by far is the most accommodating airline in the fleet your staff Makes the accessibility easy and convenient for for this type of travel. We would personally like to think the flight teams of our two flights for being very accommodating and helpful throughout our trip.
Crew
Overall
Comfort
Food
Entertainment
Boarding
Reviews
I was traveling with a companion that utilizes a scooter to get around. We have flown together many times and used other airlines. Southwest by far is the most accommodating airline in the fleet your staff Makes the accessibility easy and convenient for for this type of travel. We would personally like to think the flight teams of our two flights for being very accommodating and helpful throughout our trip.
Crew
Overall
Comfort
Food
Entertainment
Boarding
Reviews
I was traveling with a companion that utilizes a scooter to get around. We have flown together many times and used other airlines. Southwest by far is the most accommodating airline in the fleet your staff Makes the accessibility easy and convenient for for this type of travel. We would personally like to think the flight teams of our two flights for being very accommodating and helpful throughout our trip.
Crew
Overall
Comfort
Food
Entertainment
Boarding
Reviews
I was traveling with a companion that utilizes a scooter to get around. We have flown together many times and used other airlines. Southwest by far is the most accommodating airline in the fleet your staff Makes the accessibility easy and convenient for for this type of travel. We would personally like to think the flight teams of our two flights for being very accommodating and helpful throughout our trip.
Crew
Overall
Comfort
Food
Entertainment
Boarding
Reviews
I was traveling with a companion that utilizes a scooter to get around. We have flown together many times and used other airlines. Southwest by far is the most accommodating airline in the fleet your staff Makes the accessibility easy and convenient for for this type of travel. We would personally like to think the flight teams of our two flights for being very accommodating and helpful throughout our trip.
Related info for your journey
Find useful and relevant information for your journey from Chicago to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Chicago to IllinoisSee prices for flight routes from nearby airports that may be better suited for you.
See prices for flight routes from nearby airports that may be better suited for you.
Top 2 airlines flying from Chicago to Illinois
Discover the top 2 airlines that operate flights from Chicago to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,073,952 searches. Data last updated April 25, 2024.
Search flights from Chicago to Illinois by cabin class
Find flights from Chicago to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Hourly flight availability from Chicago to Illinois
Find hourly flight availability from Chicago to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 25, 2024.
| 1%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 46%of flight departures | Morning6 am to noon |
| 49%of flight departures | AfternoonNoon to 6 pm |
| 4%of flight departures | Evening6 pm to midnight |
Book a flight to one of these trending destinations
User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Fly with Cheapflights
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How does Cheapflights help users find flights from Chicago to Illinois?
Deals for Chicago to Illinois flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Chicago to Illinois?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Illinois from Chicago.
Can Cheapflights find flights from Chicago to Illinois with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Chicago to Illinois flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Chicago to Illinois become cheaper?
Yes, Cheapflights offers price alerts on Chicago to Illinois flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.