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$59+ Cheap flights from Illinois to Indiana

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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IND
Jan 20 — Jan 271
Tue 1/20
Tue 1/27
1 adult, Economy
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Cheap flight deals from Illinois to Indiana

Cheapest flights from Illinois to Indiana
Explore the most affordable flight options available from Illinois to Indiana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 21, 2025.

This United Airlines deal was found by Cheapflights users on 12/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:44 amDEC - ORD
Nonstop1h 16mUnited Airlines
Wed 1/74:52 pmORD - DEC
Nonstop1h 09mUnited Airlines
Deal found 12/19$174
This United Airlines deal was found by Cheapflights users on 12/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/209:44 amDEC - ORD
Nonstop1h 16mUnited Airlines
Sun 12/214:50 pmORD - DEC
Nonstop1h 09mUnited Airlines
Deal found 12/18$199
This United Airlines deal was found by Cheapflights users on 12/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:10 pmSTL - ORD
Nonstop1h 44mUnited Airlines
Thu 1/14:24 pmORD - STL
Nonstop1h 30mUnited Airlines
Deal found 12/18$215
This Delta deal was found by Cheapflights users on 12/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:13 pmSTL - MDW
1 stop5h 09mDelta
Thu 1/15:59 pmMDW - STL
1 stop4h 17mDelta
Deal found 12/18$235
This Expedia deal was found by Cheapflights users on 12/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3111:23 amORD - CVG
1 stop12h 43mFrontier
Sun 1/42:50 pmCVG - ORD
1 stop8h 34mFrontier
Deal found 12/19$248
This Southwest deal was found by Cheapflights users on 12/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:30 amSTL - MDW
1 stop4h 15mSouthwest
Thu 1/111:25 amMDW - STL
Nonstop1h 10mSouthwest
Deal found 12/18$255
This American Airlines deal was found by Cheapflights users on 12/20. 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.
Wed 12/317:05 amSTL - ORD
1 stop5h 35mAmerican Airlines
Thu 1/112:10 pmORD - STL
Nonstop1h 26mAmerican Airlines
Deal found 12/20$255
This Southwest deal was found by Cheapflights users on 12/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:30 amSTL - ORD
1 stop3h 45mSouthwest
Thu 1/11:45 pmORD - STL
1 stop8h 25mSouthwest
Deal found 12/18$270
This United Airlines deal was found by Cheapflights users on 12/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/221:00 pmMLI - ORD
Nonstop1h 18mUnited Airlines
Tue 1/63:45 pmORD - MLI
Nonstop1h 09mUnited Airlines
Deal found 12/19$274
This Kiwi.com deal was found by Cheapflights users on 12/18. 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.
Wed 12/313:10 pmMDW - CVG
1 stop8h 56mMultiple Airlines
Sun 1/46:14 pmCVG - MDW
2 stops53h 03mMultiple Airlines
Deal found 12/18$284
This American Airlines deal was found by Cheapflights users on 12/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/242:04 pmSTL - ORD
1 stop48h 08mAmerican Airlines
Fri 12/266:03 pmORD - STL
Nonstop1h 28mAmerican Airlines
Deal found 12/19$286
This United Airlines deal was found by Cheapflights users on 12/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/221:00 pmMLI - ORD
Nonstop1h 18mUnited Airlines
Sat 12/277:58 pmORD - MLI
Nonstop1h 23mUnited Airlines
Deal found 12/18$289

Find flight deals from Illinois to Indiana

Keep the following information in mind while searching for Illinois to Indiana flight deals. Data was last updated December 21, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$133
(Kiwi.com)

One-way from

$59
(Mytrip)

Popular in

December

Cheapest in

August

Average price

$504

Good round-trip deal

$291 or less

Good one-way deal

$152 or less
Provider with most accurate pricing for Chicago (CHI)-Indianapolis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Indianapolis flights.
Search Deals
From Illinois to Indiana
Search Deals
One-way flight from Illinois to Indiana
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Indiana.
Search Deals
Price to beat on a one-way flight from Illinois to Indiana.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Indiana 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 December 21, 2025.
Use the filters below to find and compare flights from Illinois to Indiana that are best for you.

Fly from

Illinois

Fly to

Indiana

Route

Depart

Return

Price

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Sat 1/17

5:50 pm-7:00 pm

Nonstop1h 10m

Chicago Midway

Sat 1/24

3:55 pm-5:10 pm

Nonstop1h 15m

$143

ChicagoIndianapolis

ORD - IND

ORDIND

Chicago O'Hare Intl

Sat 1/24

12:00 pm-10:48 pm

1 stop9h 48m

Indianapolis

Mon 1/26

7:33 pm-1:13 pm

1 stop18h 40m

$146

DecaturChicago

DEC - ORD

DECORD

Decatur Arpt

Thu 1/1

7:09 pm-8:25 pm

Nonstop1h 16m

Chicago O'Hare Intl

Mon 1/5

7:45 am-9:05 am

Nonstop1h 20m

$149

DecaturChicago

DEC - ORD

DECORD

Decatur Arpt

Thu 1/15

7:09 pm-8:25 pm

Nonstop1h 16m

Chicago O'Hare Intl

Thu 1/22

4:52 pm-6:01 pm

Nonstop1h 09m

$149

DecaturChicago

DEC - ORD

DECORD

Decatur Arpt

Sat 1/3

9:44 am-11:00 am

Nonstop1h 16m

Chicago O'Hare Intl

Wed 1/7

7:45 am-9:05 am

Nonstop1h 20m

$149

ChicagoLouisville

MDW - SDF

MDWSDF

Chicago Midway

Tue 1/13

7:55 pm-10:10 pm

Nonstop1h 15m

Louisville Intl

Thu 1/15

6:25 am-6:55 am

Nonstop1h 30m

$152

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Tue 1/13

7:52 pm-10:30 pm

Nonstop1h 38m

Louisville Intl

Thu 1/15

8:29 am-9:13 am

Nonstop1h 44m

$152

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Wed 2/4

6:00 am-7:27 am

Nonstop1h 27m

Chicago O'Hare Intl

Wed 2/11

8:50 am-10:20 am

Nonstop1h 30m

$153

ChicagoLouisville

MDW - SDF

MDWSDF

Chicago Midway

Sat 1/10

9:55 am-12:10 pm

Nonstop1h 15m

Louisville Intl

Mon 1/12

6:45 am-7:10 am

Nonstop1h 25m

$157

DecaturChicago

DEC - ORD

DECORD

Decatur Arpt

Fri 1/2

7:09 pm-8:25 pm

Nonstop1h 16m

Chicago O'Hare Intl

Tue 1/6

4:52 pm-6:01 pm

Nonstop1h 09m

$159

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

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

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

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

Currently, October is the cheapest month in which you can book a flight from Illinois to Indiana (average of $167). Flying from Illinois to Indiana in December is currently the most expensive (average of $218). 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 IL to IN?

Find hourly flight availability from Illinois to Indiana. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 21, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 27% on flights from Illinois to Indiana by exploring options for tickets in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Illinois to Indiana. Price data was last updated on December 16, 2024.

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

Weekly flight availability from Illinois to Indiana

Explore weekly flight availability from Illinois to Indiana. 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 December 21, 2025.

The most flights from USIL to USIN are scheduled on a Saturday (61 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (19 on average).

Reviews of airlines servicing Indiana

Get insights into the airlines that provide service to Indiana. 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 Indiana. Reviews last updated December 21, 2025.
Read reviews from past customers who have flown Southwest, United Airlines, and American Airlines from Illinois to Indiana. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,256 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

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
4,256 reviews
Southwest
8.0
Very good
4,256 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

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
9,099 reviews
Southwest
8.0
Very good
4,256 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

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
11,050 reviews
Southwest
8.0
Very good
4,256 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

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
6.8
Okay
30 reviews
Southwest
8.0
Very good
4,256 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

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 Illinois to Indiana. 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 Illinois to Indiana?

    Southwest, United Airlines, and Frontier can get you from Illinois to Indiana in just under 1h 10m. Your travel time can differ by up to 16h 26m. There are 251 mi between Illinois and Indiana. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    One-way options have recently been found by users for as low as $446 on WestJet. Other airlines that offer cheap prices include American Airlines from $468 and Air Canada from $485 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Indiana 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 Illinois to Indiana?

    Currently, October is the cheapest month in which you can book a flight from Illinois to Indiana (average of $167). Flying from Illinois to Indiana in December is currently the most expensive (average of $218). 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 Illinois to Indiana

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

Discover the top 3 airlines that operate flights from Illinois to Indiana. 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 December 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$179Average$321FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$179Average$305FlexibilityNo cancel feeOn-time71%
Southern / MokuleleCheapest$190Average$208FlexibilityNo cancel feeOn-timeN/A

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