HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$67+ Cheap flights from Chicago (CHI) to Illinois

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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — ORD
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chicago to Illinois with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Chicago to Illinois

Keep the following information in mind while searching for Chicago to Illinois flight deals. Data was last updated January 8, 2026.

Round-trip from

$87
(Mytrip)

One-way from

$67
(Kiwi.com)

Good round-trip deal

$98 or less

Good one-way deal

$44 or less
From Chicago (CHI) to Illinois
Search Deals
One-way flight from Chicago (CHI) to Illinois
Search Deals
Price to beat on a round-trip flight from Chicago (CHI) to Illinois.
Search Deals
Price to beat on a one-way flight from Chicago (CHI) to Illinois.
Search Deals

Find flight deals from Chicago to Illinois

Cheapest flights from Chicago to Illinois
Explore the most affordable flight options available from Chicago to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.

This Mytrip deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/310:50 amORD - BRL
Nonstop1h 20mContour
Tue 2/109:00 amBRL - ORD
Nonstop1h 10mContour
Deal found 1/6$87
This Booking.com deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/710:50 amORD - BRL
Nonstop1h 20mContour
Sat 2/149:00 amBRL - ORD
Nonstop1h 10mContour
Deal found 1/7$88
This Booking.com deal was found by Cheapflights users on 1/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2010:50 amORD - BRL
Nonstop1h 20mContour
Sun 2/224:25 pmBRL - ORD
Nonstop1h 20mContour
Deal found 1/5$89
This Contour deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Contour is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/2610:50 amORD - BRL
Nonstop1h 20mContour
Tue 1/279:00 amBRL - ORD
Nonstop1h 10mContour
Deal found 1/7$99
This Booking.com deal was found by Cheapflights users on 1/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:45 pmORD - BRL
Nonstop1h 20mContour
Wed 9/309:25 amBRL - ORD
Nonstop1h 10mContour
Deal found 1/5$108
This Kiwi.com deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/312:44 pmORD - STL
1 stop10h 49mMultiple Airlines
Wed 2/45:42 pmSTL - ORD
1 stop16h 59mMultiple Airlines
Deal found 1/7$132
This Mytrip deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/1610:50 amORD - BRL
Nonstop1h 20mContour
Mon 1/194:25 pmBRL - ORD
Nonstop1h 20mContour
Deal found 1/7$135
This Booking.com deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/1710:50 amORD - BRL
Nonstop1h 20mContour
Mon 1/194:25 pmBRL - ORD
Nonstop1h 20mContour
Deal found 1/7$138
This Booking.com deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/1610:50 amORD - BRL
Nonstop1h 20mContour
Sun 1/184:25 pmBRL - ORD
Nonstop1h 20mContour
Deal found 1/6$139
This United Airlines deal was found by Cheapflights users on 1/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/224:52 pmORD - DEC
Nonstop1h 09mUnited Airlines
Mon 1/267:09 pmDEC - ORD
Nonstop1h 16mUnited Airlines
Deal found 1/8$149
This Frontier deal was found by Cheapflights users on 1/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/314:18 pmORD - STL
1 stop7h 01mFrontier
Tue 4/710:42 amSTL - ORD
1 stop6h 30mFrontier
Deal found 1/8$149
This Kiwi.com deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2911:51 amORD - STL
1 stop11h 42mMultiple Airlines
Mon 2/25:42 pmSTL - ORD
1 stop28h 02mMultiple Airlines
Deal found 1/7$150

Cheapflights Fare Finder

 
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 2,558,603 searches. Data last updated January 8, 2026.
Use the filters below to find and compare flights from Chicago to Illinois that are best for you.

Fly from

Chicago

Fly to

Illinois

Route

Depart

Return

Price

ChicagoBurlington

ORD - BRL

ORDBRL

Chicago O'Hare Intl

Thu 3/19

10:50 am-12:10 pm

Nonstop1h 20m

Burlington

Mon 3/23

4:25 pm-5:45 pm

Nonstop1h 20m

$88

ChicagoBurlington

ORD - BRL

ORDBRL

Chicago O'Hare Intl

Wed 3/25

10:50 am-12:10 pm

Nonstop1h 20m

Burlington

Sat 3/28

9:00 am-10:10 am

Nonstop1h 10m

$88

ChicagoBurlington

ORD - BRL

ORDBRL

Chicago O'Hare Intl

Sat 2/7

10:50 am-12:10 pm

Nonstop1h 20m

Burlington

Sat 2/14

9:00 am-10:10 am

Nonstop1h 10m

$88

ChicagoBurlington

ORD - BRL

ORDBRL

Chicago O'Hare Intl

Sun 2/1

6:25 pm-7:45 pm

Nonstop1h 20m

Burlington

Sat 2/28

9:00 am-10:10 am

Nonstop1h 10m

$89

ChicagoBurlington

ORD - BRL

ORDBRL

Chicago O'Hare Intl

Sat 4/4

12:00 pm-1:20 pm

Nonstop1h 20m

Burlington

Sat 4/11

9:25 am-10:35 am

Nonstop1h 10m

$89

ChicagoBurlington

ORD - BRL

ORDBRL

Chicago O'Hare Intl

Fri 2/27

10:50 am-12:10 pm

Nonstop1h 20m

Burlington

Sun 3/1

9:00 am-10:10 am

Nonstop1h 10m

$89

ChicagoBurlington

ORD - BRL

ORDBRL

Chicago O'Hare Intl

Tue 2/3

10:50 am-12:10 pm

Nonstop1h 20m

Burlington

Tue 2/10

9:00 am-10:10 am

Nonstop1h 10m

$93

ChicagoBurlington

ORD - BRL

ORDBRL

Chicago O'Hare Intl

Thu 3/26

10:50 am-12:10 pm

Nonstop1h 20m

Burlington

Fri 4/3

4:45 pm-6:05 pm

Nonstop1h 20m

$99

ChicagoBurlington

ORD - BRL

ORDBRL

Chicago O'Hare Intl

Mon 1/26

10:50 am-12:10 pm

Nonstop1h 20m

Burlington

Tue 1/27

9:00 am-10:10 am

Nonstop1h 10m

$99

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

Thu 1/22

4:52 pm-6:01 pm

Nonstop1h 09m

Decatur Arpt

Mon 1/26

7:09 pm-8:25 pm

Nonstop1h 16m

$149

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Chicago to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Chicago with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago to Illinois

What is the cheapest time of day to fly from CHI to IL?

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 January 8, 2026.

A simple way to save on the total cost of your ticket is to fly from Chicago to Illinois in the afternoon. If you’re flexible enough to do this you can expect to save up to 35% on your trip compared to booking a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Chicago to Illinois. Price data was last updated on January 26, 2025.

Travelers seeking maximum savings on their Chicago to Illinois flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 January 8, 2026.
Read reviews from past customers who have flown Contour and United Airlines from Chicago to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Contour
7.6
Good
42 reviews

Boarding

7.6

Entertainment

6.1

Food

6.8

Comfort

7.3

Crew

7.9

Overall

7.6

Reviews

1 / 2
10.0
Excellent

Anonymous,Oct 2025

CLT - PAH

The steward on my flight from Charlotte to Paducah was the kindest person I’ve ever met. He made everyone feel comfortable, and even laugh a little. Not to mention his hair was top tier. He deserves a raise. Xoxo
Contour
7.6
Good
42 reviews
Contour
7.6
Good
42 reviews

Boarding

7.6

Entertainment

6.1

Food

6.8

Comfort

7.3

Crew

7.9

Overall

7.6

Reviews

1 / 2
10.0
Excellent

Anonymous,Oct 2025

CLT - PAH

The steward on my flight from Charlotte to Paducah was the kindest person I’ve ever met. He made everyone feel comfortable, and even laugh a little. Not to mention his hair was top tier. He deserves a raise. Xoxo
United Airlines
7.4
Good
9,139 reviews
Contour
7.6
Good
42 reviews

Boarding

7.6

Entertainment

6.1

Food

6.8

Comfort

7.3

Crew

7.9

Overall

7.6

Reviews

1 / 2
10.0
Excellent

Anonymous,Oct 2025

CLT - PAH

The steward on my flight from Charlotte to Paducah was the kindest person I’ve ever met. He made everyone feel comfortable, and even laugh a little. Not to mention his hair was top tier. He deserves a raise. Xoxo

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.

  • How long is the flight from Chicago to Illinois?

    Departing from Chicago to Illinois will take you 1h 09m. Chicago and Illinois are separated by a distance of 156 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Chicago to Illinois one-way?

    The cheapest airline one-way is Contour, with whom users have recently found tickets for as low as $64. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Chicago to Illinois for a low price.

  • What are the most popular routes from Chicago to Illinois?

    Most travelers choose Chicago O'Hare Intl - Lambert-St Louis, Chicago Midway - Lambert-St Louis or Chicago O'Hare Intl - Evansville Dress Regional when deciding on the best route from Chicago to Illinois.

  • Can I find deals for flights from Chicago to Illinois that include hotel bookings?

    Yes. In addition to deals on Chicago to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Illinois.

  • Can I find deals for business class flights from Chicago to Illinois?

    Yes. Cheapflights offers flight deals from Chicago to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Chicago to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Las Vegas flights
O'Hare Intl to Dallas/Fort Worth flights
O'Hare Intl to John F Kennedy Intl flights
O'Hare Intl to Sky Harbor Intl flights
O'Hare Intl to Los Angeles flights
O'Hare Intl to Tampa flights
O'Hare Intl to Fort Lauderdale flights
O'Hare Intl to Miami flights
O'Hare Intl to Orlando flights
O'Hare Intl to Atlanta flights
O'Hare Intl to Denver flights
O'Hare Intl to San Francisco flights
O'Hare Intl to LaGuardia flights
Midway to Dallas/Fort Worth flights
O'Hare Intl to West Palm Beach flights
O'Hare Intl to Fort Myers flights
O'Hare Intl to Newark flights
Midway to Las Vegas flights
Midway to Fort Lauderdale flights
O'Hare Intl to Seattle flights
Midway to Orlando flights
Midway to Miami flights
O'Hare Intl to San Diego flights
O'Hare Intl to Honolulu flights
O'Hare Intl to Baltimore flights
Midway to Sky Harbor Intl flights
O'Hare Intl to Santa Ana flights
O'Hare Intl to Austin flights
O'Hare Intl to New Orleans flights
Midway to Atlanta flights
O'Hare Intl to Salt Lake City flights
O'Hare Intl to Sarasota flights
Midway to Newark flights
O'Hare Intl to Reagan-National flights
Midway to Los Angeles flights
St. Louis to Las Vegas flights
O'Hare Intl to Palm Springs flights
O'Hare Intl to Ontario flights
Midway to Tampa flights
Midway to John F Kennedy Intl flights
O'Hare Intl to Philadelphia flights
O'Hare Intl to Nashville flights
O'Hare Intl to George Bush Intcntl flights
O'Hare Intl to Boston flights
St. Louis to Orlando flights
O'Hare Intl to Key West flights
O'Hare Intl to Dulles Intl flights
O'Hare Intl to Hobby flights
Midway to LaGuardia flights
Midway to Fort Myers flights

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 2,558,603 searches. Data last updated January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$179Average$339FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$363Average$513FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.