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Illinois

$59+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
IND — ORD
Apr 22 — Apr 291
Wed 4/22
Wed 4/29
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 March 23, 2026.

This Frontier deal was found by Cheapflights users on 3/20. 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.
Fri 4/1012:18 pm
IND
-
ORD
1 stop11h 21m
Frontier
Mon 4/135:15 am
ORD
-
IND
1 stop5h 08m
Frontier
Deal found 3/20$140
This American Airlines deal was found by Cheapflights users on 3/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2812:16 pm
IND
-
ORD
Nonstop1h 23m
American Airlines
Tue 4/284:50 pm
ORD
-
IND
Nonstop1h 13m
American Airlines
Deal found 3/20$157
This Frontier deal was found by Cheapflights users on 3/22. 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.
Mon 4/1312:18 pm
IND
-
ORD
1 stop11h 21m
Frontier
Fri 4/1710:55 am
ORD
-
IND
1 stop8h 05m
Frontier
Deal found 3/22$160
This Kiwi.com deal was found by Cheapflights users on 3/22. 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 4/1712:34 pm
IND
-
ORD
1 stop23h 59m
Frontier
Sat 4/254:28 pm
ORD
-
IND
1 stop17h 49m
Frontier
Deal found 3/22$161
This Kiwi.com deal was found by Cheapflights users on 3/18. 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.
Mon 4/1312:19 pm
CVG
-
MDW
1 stop11h 00m
Frontier
Thu 4/166:00 am
MDW
-
CVG
1 stop10h 33m
Frontier
Deal found 3/18$173
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 4/1612:17 pm
IND
-
ORD
1 stop11h 22m
Frontier
Sat 4/184:28 pm
ORD
-
IND
1 stop17h 49m
Frontier
Deal found 3/20$174
This Southwest deal was found by Cheapflights users on 3/19. 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.
Mon 4/138:20 pm
CVG
-
MDW
Nonstop1h 10m
Southwest
Tue 4/1412:50 pm
MDW
-
CVG
Nonstop1h 10m
Southwest
Deal found 3/19$174
This American Airlines deal was found by Cheapflights users on 3/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:46 pm
CVG
-
ORD
Nonstop1h 40m
American Airlines
Tue 4/148:57 pm
ORD
-
CVG
Nonstop1h 30m
American Airlines
Deal found 3/18$174
This Kiwi.com deal was found by Cheapflights users on 3/22. 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 4/177:46 pm
CVG
-
ORD
1 stop16h 47m
Frontier
Mon 4/205:50 am
ORD
-
CVG
1 stop11h 46m
Frontier
Deal found 3/22$175
This Southwest deal was found by Cheapflights users on 3/20. 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.
Tue 4/286:20 am
IND
-
ORD
1 stop5h 50m
Southwest
Tue 4/282:40 pm
ORD
-
IND
1 stop5h 25m
Southwest
Deal found 3/20$177
This Delta deal was found by Cheapflights users on 3/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1412:00 pm
CVG
-
ORD
1 stop5h 18m
Delta
Wed 5/139:25 am
ORD
-
CVG
1 stop3h 02m
Delta
Deal found 3/19$177
This Southwest deal was found by Cheapflights users on 3/22. 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.
Tue 4/213:30 pm
SDF
-
MDW
Nonstop1h 15m
Southwest
Tue 4/286:20 pm
MDW
-
SDF
Nonstop1h 15m
Southwest
Deal found 3/22$178

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 March 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$140
(Frontier)

One-way from

$59
(Southwest)

Popular in

March

Cheapest in

August

Average price

$439

Good round-trip deal

$287 or less

Good one-way deal

$189 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. 12% potential increase in price ($42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 23, 2026.
Use the filters below to find and compare flights from Indiana to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CincinnatiChicago

CVG - ORD

CVGORD

Cincinnati Cinci./N. Kentucky

Tue 4/14

8:30 am-9:06 am

Nonstop1h 36m

Chicago O'Hare Intl

Mon 4/27

2:50 pm-5:14 pm

Nonstop1h 24m

$174

LouisvilleChicago

SDF - MDW

SDFMDW

Louisville Intl

Tue 4/21

3:30 pm-3:45 pm

Nonstop1h 15m

Chicago Midway

Tue 4/28

6:20 pm-8:35 pm

Nonstop1h 15m

$178

CincinnatiChicago

CVG - MDW

CVGMDW

Cincinnati Cinci./N. Kentucky

Tue 4/14

8:35 am-8:45 am

Nonstop1h 10m

Chicago Midway

Mon 4/27

2:10 pm-11:25 pm

2 stops8h 15m

$189

CincinnatiChicago

CVG - ORD

CVGORD

Cincinnati Cinci./N. Kentucky

Thu 4/9

8:30 am-9:06 am

Nonstop1h 36m

Chicago O'Hare Intl

Sat 4/11

6:59 am-9:18 am

Nonstop1h 19m

$191

CincinnatiChicago

CVG - MDW

CVGMDW

Cincinnati Cinci./N. Kentucky

Thu 4/16

8:20 pm-8:30 pm

Nonstop1h 10m

Chicago Midway

Thu 4/23

1:00 pm-3:10 pm

Nonstop1h 10m

$191

CincinnatiChicago

CVG - ORD

CVGORD

Cincinnati Cinci./N. Kentucky

Mon 4/20

8:30 am-9:06 am

Nonstop1h 36m

Chicago O'Hare Intl

Thu 4/23

9:30 pm-11:58 pm

Nonstop1h 28m

$191

CincinnatiChicago

CVG - ORD

CVGORD

Cincinnati Cinci./N. Kentucky

Mon 4/13

9:12 pm-9:53 pm

Nonstop1h 41m

Chicago O'Hare Intl

Thu 4/16

9:30 pm-11:58 pm

Nonstop1h 28m

$191

CincinnatiChicago

CVG - MDW

CVGMDW

Cincinnati Cinci./N. Kentucky

Sat 5/9

8:45 am-8:55 am

Nonstop1h 10m

Chicago Midway

Mon 5/11

3:50 pm-9:50 pm

1 stop5h 00m

$201

CincinnatiChicago

CVG - ORD

CVGORD

Cincinnati Cinci./N. Kentucky

Fri 5/8

12:46 pm-12:27 am

2 stops12h 41m

Chicago O'Hare Intl

Sun 5/10

11:51 am-11:41 am

1 stop22h 50m

$206

CincinnatiChicago

CVG - ORD

CVGORD

Cincinnati Cinci./N. Kentucky

Thu 4/16

8:14 am-12:45 pm

1 stop5h 31m

Chicago O'Hare Intl

Thu 4/23

5:15 am-12:30 pm

1 stop6h 15m

$211

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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 March 23, 2026.

Unlike at noon, when flights are generally more expensive, you can save up to 34% 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 March 14, 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.

Weekly flight availability from Indiana to Illinois

Explore weekly flight availability from Indiana to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 23, 2026.

The most flights from USIN to USIL are scheduled on a Friday (77 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (47 on average).

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 March 23, 2026.
Peruse reviews from past customers who have flown with Southwest,United Airlines, andAmerican 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
4,324 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,324 reviews
Southwest
8.0
Very good
4,324 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,460 reviews
Southwest
8.0
Very good
4,324 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,489 reviews
Southwest
8.0
Very good
4,324 reviews

Food

7.0

Comfort

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 $178, United Airlines can have you in Illinois from Indiana in 1h 15m. 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?

    $88 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on Southern / Mokulele and United Airlines, with prices starting from $89 and $89, 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 March 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$137Average$306FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$157Average$243FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$192Average$337FlexibilityNo cancel feeOn-time63%

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