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$49+ 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 12/24. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IND
Dec 4 — Dec 111
Thu 12/4
Thu 12/11
1 adult, Economy
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Find 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 November 4, 2025.

This United Airlines deal was found by Cheapflights users on 11/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/247:30 amORD - SDF
Nonstop1h 29mUnited Airlines
Mon 11/242:02 pmSDF - ORD
Nonstop1h 38mUnited Airlines
Deal found 11/3$97
This Southwest deal was found by Cheapflights users on 11/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/242:30 pmSTL - MDW
Nonstop1h 10mSouthwest
Thu 11/279:30 amMDW - STL
Nonstop1h 15mSouthwest
Deal found 11/3$97
This American Airlines deal was found by Cheapflights users on 11/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/247:58 pmSTL - ORD
Nonstop1h 31mAmerican Airlines
Thu 11/273:00 pmORD - STL
Nonstop1h 25mAmerican Airlines
Deal found 11/3$97
This American Airlines deal was found by Cheapflights users on 11/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/48:20 pmORD - SDF
Nonstop1h 36mAmerican Airlines
Mon 12/86:21 pmSDF - ORD
Nonstop1h 55mAmerican Airlines
Deal found 11/3$98
This American Airlines deal was found by Cheapflights users on 11/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/118:38 amSTL - ORD
Nonstop1h 38mAmerican Airlines
Mon 12/156:41 amORD - STL
Nonstop1h 27mAmerican Airlines
Deal found 11/2$98
This Southwest deal was found by Cheapflights users on 11/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:00 amSTL - MDW
Nonstop1h 10mSouthwest
Wed 12/1011:25 amMDW - STL
Nonstop1h 10mSouthwest
Deal found 11/3$101
This American Airlines deal was found by Cheapflights users on 11/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:40 pmSTL - ORD
Nonstop1h 40mAmerican Airlines
Wed 12/1011:12 amORD - STL
Nonstop1h 32mAmerican Airlines
Deal found 11/3$101
This Frontier deal was found by Cheapflights users on 11/4. 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 12/412:04 pmSTL - MDW
1 stop10h 08mFrontier
Mon 12/83:10 pmMDW - STL
1 stop7h 23mFrontier
Deal found 11/4$110
This Frontier deal was found by Cheapflights users on 11/3. 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.
Mon 11/1712:09 pmSTL - ORD
1 stop12h 40mFrontier
Wed 11/1912:37 pmORD - STL
1 stop10h 24mFrontier
Deal found 11/3$110
This Southwest deal was found by Cheapflights users on 11/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/310:05 amMDW - SDF
Nonstop1h 25mSouthwest
Wed 12/33:20 pmSDF - MDW
1 stop6h 45mSouthwest
Deal found 11/3$111
This Frontier deal was found by Cheapflights users on 11/4. 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 12/412:04 pmSTL - ORD
1 stop5h 23mFrontier
Mon 12/82:26 pmORD - STL
1 stop8h 07mFrontier
Deal found 11/4$111
This American Airlines deal was found by Cheapflights users on 11/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/95:36 pmORD - SDF
Nonstop1h 28mAmerican Airlines
Wed 12/101:02 pmSDF - ORD
Nonstop1h 42mAmerican Airlines
Deal found 11/3$117

Cheap flight deals from Illinois to Indiana

Keep the following information in mind while searching for Illinois to Indiana flight deals. Data was last updated November 4, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$97
(United Airlines)

One-way from

$49
(United Airlines)

Popular in

March

Cheapest in

December

Average price

$259

Good round-trip deal

$297 or less

Good one-way deal

$158 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 ($38 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 November 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 November 4, 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

Mon 11/24

2:30 pm-3:40 pm

Nonstop1h 10m

Chicago Midway

Thu 11/27

9:30 am-10:45 am

Nonstop1h 15m

$97

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Tue 2/3

1:15 pm-2:20 pm

Nonstop1h 05m

Chicago Midway

Tue 2/3

7:45 pm-9:00 pm

Nonstop1h 15m

$117

ChicagoIndianapolis

MDW - IND

MDWIND

Chicago Midway

Fri 12/12

6:15 am-3:10 pm

1 stop7h 55m

Indianapolis

Mon 12/15

7:45 pm-8:46 am

1 stop14h 01m

$134

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Thu 1/1

4:25 pm-5:35 pm

Nonstop1h 10m

Chicago Midway

Mon 1/5

6:45 am-8:00 am

Nonstop1h 15m

$134

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Wed 12/10

7:55 pm-10:29 pm

Nonstop1h 34m

Louisville Intl

Sat 12/13

12:20 pm-12:58 pm

Nonstop1h 38m

$136

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Thu 12/4

12:04 pm-6:08 pm

1 stop6h 04m

Chicago Midway

Wed 12/10

2:49 pm-11:07 am

1 stop20h 18m

$152

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Thu 12/4

7:00 am-8:10 am

Nonstop1h 10m

Chicago Midway

Wed 12/10

3:45 pm-7:25 pm

1 stop3h 40m

$154

ChicagoIndianapolis

ORD - IND

ORDIND

Chicago O'Hare Intl

Sat 12/6

2:26 pm-9:53 am

1 stop18h 27m

Indianapolis

Wed 12/10

12:03 pm-1:57 pm

1 stop26h 54m

$156

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Mon 11/24

5:23 am-12:07 pm

1 stop5h 44m

Louisville Intl

Mon 11/24

6:16 pm-12:02 am

1 stop6h 46m

$157

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Wed 12/10

6:45 am-12:13 pm

1 stop4h 28m

Louisville Intl

Tue 12/16

12:58 pm-4:45 pm

1 stop4h 47m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

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 $174). Flying from Illinois to Indiana in December is currently the most expensive (average of $214). 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 November 4, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 21% 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 at noon 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 November 4, 2025.

The most flights from USIL to USIN are scheduled on a Monday (62 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (40 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 November 4, 2025.
Read reviews from past customers who have flown United Airlines, American Airlines, and Southern / Mokulele from Illinois to Indiana. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,999 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,999 reviews
United Airlines
7.4
Good
8,999 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
American Airlines
7.2
Good
11,038 reviews
United Airlines
7.4
Good
8,999 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Southern / Mokulele
6.1
Okay
25 reviews
United Airlines
7.4
Good
8,999 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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, Frontier, and United Airlines can get you from Illinois to Indiana in just under 1h 10m. Your travel time can differ by up to 6h 45m. 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 $49 on United Airlines. Other airlines that offer cheap prices include Southwest from $49 and Frontier from $55 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 $174). Flying from Illinois to Indiana in December is currently the most expensive (average of $214). 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 November 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$179Average$316FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$179Average$305FlexibilityNo cancel feeOn-time71%
Southern / MokuleleCheapest$190Average$208FlexibilityNo cancel feeOn-timeN/A

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