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Illinois

$60+ Cheap flights from Indiana 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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
IND — ORD
Feb 2 — Feb 91
Mon 2/2
Mon 2/9
1 adult, Economy
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Cheap flight deals from Indiana to Illinois

Cheapest flights from Indiana to Illinois
Explore the most affordable flight options available from Indiana to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 3, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/2. 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.
Fri 1/301:00 pmMDW - STL
1 stop10h 33mFrontier
Fri 2/611:18 amSTL - MDW
1 stop8h 34mFrontier
Deal found 1/2$131
This United Airlines deal was found by Cheapflights users on 1/2. 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.
Wed 1/282:05 pmSDF - ORD
Nonstop1h 44mUnited Airlines
Wed 1/287:52 pmORD - SDF
Nonstop1h 38mUnited Airlines
Deal found 1/2$133
This Frontier deal was found by Cheapflights users on 1/3. 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.
Sat 1/172:27 pmCVG - STL
1 stop9h 07mFrontier
Sat 1/2412:12 pmSTL - CVG
1 stop9h 08mFrontier
Deal found 1/3$144
This Expedia deal was found by Cheapflights users on 1/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/319:00 amCVG - ORD
1 stop8h 40mFrontier
Sat 2/79:25 amORD - CVG
1 stop8h 02mFrontier
Deal found 1/2$144
This Frontier deal was found by Cheapflights users on 1/2. 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.
Sat 1/248:01 pmIND - ORD
1 stop16h 10mFrontier
Mon 1/265:40 amORD - IND
1 stop5h 03mFrontier
Deal found 1/2$146
This Frontier deal was found by Cheapflights users on 1/2. 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.
Thu 1/2212:34 pmCVG - ORD
1 stop7h 43mFrontier
Sat 1/249:25 amORD - CVG
1 stop11h 55mFrontier
Deal found 1/2$146
This Kiwi.com deal was found by Cheapflights users on 1/1. 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 1/297:41 pmORD - STL
1 stop23h 03mMultiple Airlines
Mon 2/25:42 pmSTL - ORD
1 stop25h 59mMultiple Airlines
Deal found 1/1$147
This Kiwi.com deal was found by Cheapflights users on 1/2. 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.
Sat 2/79:25 amORD - STL
1 stop14h 08mFrontier
Mon 2/95:42 pmSTL - ORD
1 stop22h 10mFrontier
Deal found 1/2$151
This United Airlines deal was found by Cheapflights users on 1/1. 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.
Wed 2/259:00 amSDF - ORD
Nonstop1h 44mUnited Airlines
Sat 2/287:40 pmORD - SDF
Nonstop1h 33mUnited Airlines
Deal found 1/1$152
This Southwest deal was found by Cheapflights users on 1/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/256:45 amSDF - MDW
Nonstop1h 25mSouthwest
Sat 2/286:15 pmMDW - SDF
Nonstop1h 15mSouthwest
Deal found 1/1$152
This Kiwi.com deal was found by Cheapflights users on 12/31. 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.
Sat 1/3112:44 pmORD - STL
1 stop10h 49mMultiple Airlines
Mon 2/25:42 pmSTL - ORD
1 stop25h 59mMultiple Airlines
Deal found 12/31$152
This Kiwi.com deal was found by Cheapflights users on 1/2. 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.
Sat 1/246:00 amIND - ORD
1 stop17h 42mMultiple Airlines
Mon 1/2612:05 pmORD - IND
1 stop22h 21mMultiple Airlines
Deal found 1/2$153

Find flight deals from Indiana to Illinois

Keep the following information in mind while searching for Indiana to Illinois flight deals. Data was last updated January 3, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$131
(Kiwi.com)

One-way from

$60
(Trip.com)

Popular in

November

Cheapest in

August

Average price

$245

Good round-trip deal

$305 or less

Good one-way deal

$148 or less
Provider with most accurate pricing for Indianapolis-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Indianapolis-Chicago (CHI) flights.
Search Deals
From Indiana to Illinois
Search Deals
One-way flight from Indiana to Illinois
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($4 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Indiana to Illinois.
Search Deals
Price to beat on a one-way flight from Indiana to Illinois.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Indiana 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 3, 2026.
Use the filters below to find and compare flights from Indiana to Illinois that are best for you.

Fly from

Indiana

Fly to

Illinois

Route

Depart

Return

Price

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Wed 1/28

2:05 pm-2:49 pm

Nonstop1h 44m

Chicago O'Hare Intl

Wed 1/28

7:52 pm-10:30 pm

Nonstop1h 38m

$133

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Sat 1/17

2:27 pm-10:34 pm

1 stop9h 07m

Lambert-St Louis

Sat 1/24

12:12 pm-10:20 pm

1 stop9h 08m

$144

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Sat 1/31

4:23 pm-11:33 pm

1 stop8h 10m

Lambert-St Louis

Sat 2/7

12:12 pm-10:20 pm

1 stop9h 08m

$146

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Thu 1/29

7:41 pm-6:44 pm

1 stop23h 03m

Lambert-St Louis

Mon 2/2

5:42 pm-7:41 pm

1 stop25h 59m

$147

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Sat 2/7

9:25 am-11:33 pm

1 stop14h 08m

Lambert-St Louis

Mon 2/9

5:42 pm-3:52 pm

1 stop22h 10m

$151

LouisvilleChicago

SDF - MDW

SDFMDW

Louisville Intl

Wed 2/25

6:45 am-7:10 am

Nonstop1h 25m

Chicago Midway

Sat 2/28

10:45 am-1:05 pm

Nonstop1h 20m

$152

IndianapolisChicago

IND - ORD

INDORD

Indianapolis

Sat 1/24

6:00 am-10:42 pm

1 stop17h 42m

Chicago O'Hare Intl

Mon 1/26

12:05 pm-11:26 am

1 stop22h 21m

$153

LouisvilleChicago

SDF - ORD

SDFORD

Louisville Intl

Wed 2/18

10:46 am-1:20 pm

1 stop3h 34m

Chicago O'Hare Intl

Wed 2/25

2:05 pm-9:18 pm

1 stop6h 13m

$157

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Sat 2/7

3:55 pm-5:10 pm

Nonstop1h 15m

Lambert-St Louis

Mon 2/9

4:30 pm-5:40 pm

Nonstop1h 10m

$157

LouisvilleChicago

SDF - MDW

SDFMDW

Louisville Intl

Wed 2/18

8:55 am-11:59 am

1 stop4h 04m

Chicago Midway

Wed 2/25

12:45 pm-7:02 pm

1 stop5h 17m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/2

Showing 1-10 of 60 results
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Best time to book a flight from Indiana to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Indiana 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 Indiana to Illinois

What is the cheapest month to book a flight from Indiana to Illinois?

Currently, February is the cheapest month in which you can book a flight from Indiana to Illinois (average of $127). Flying from Indiana to Illinois in November is currently the most expensive (average of $194). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Find hourly flight availability from Indiana 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 3, 2026.

Unlike at noon, when flights are generally more expensive, you can save up to 37% on flights from Indiana to Illinois by exploring options for tickets in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Indiana to Illinois. Price data was last updated on January 3, 2026.

Travelers seeking maximum savings on their Indiana to Illinois flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday at noon 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 3, 2026.
Peruse reviews from past customers who have flown with Southwest, United Airlines, and American Airlines from Indiana to Illinois to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,257 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,257 reviews
Southwest
8.0
Very good
4,257 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,137 reviews
Southwest
8.0
Very good
4,257 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,081 reviews
Southwest
8.0
Very good
4,257 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southern / Mokulele
6.6
Okay
29 reviews
Southwest
8.0
Very good
4,257 reviews

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Indiana 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 Indiana to Illinois?

    For as low as $152, United Airlines can have you in Illinois from Indiana in 1h 25m. The distance from Indiana to Illinois is about 271 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    $476 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Air Canada and Korean Air, with prices starting from $563 and $608, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Indiana 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.

  • What is the cheapest month to book a flight from Indiana to Illinois?

    Currently, February is the cheapest month in which you can book a flight from Indiana to Illinois (average of $127). Flying from Indiana to Illinois in November is currently the most expensive (average of $194). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Indiana to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Indiana to Illinois

Discover the top 3 airlines that operate flights from Indiana 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 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$137Average$313FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$160Average$250FlexibilityNo cancel feeOn-time69%
Southern / MokuleleCheapest$189Average$302FlexibilityNo cancel feeOn-timeN/A

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