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$39+ 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 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IND
Jun 22 — Jun 291
Sun 6/22
Sun 6/29
1 adult, Economy
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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 June 17, 2025.

Round-trip from

$77
(Southwest)

One-way from

$39
(Southwest)

Popular in

June

Cheapest in

December

Average price

$407

Good round-trip deal

$209 or less

Good one-way deal

$134 or less
From Illinois to Indiana
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One-way flight from Illinois to Indiana
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Highest demand for flights based on searches. 11% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Illinois to Indiana.
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Price to beat on a one-way flight from Illinois to Indiana.
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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 June 17, 2025.

This Southwest deal was found by Cheapflights users on 6/16. 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.
Thu 8/73:30 pmMDW - SDF
Nonstop1h 10mSouthwest
Mon 8/117:10 pmSDF - MDW
Nonstop1h 20mSouthwest
Deal found 6/16$77
This United Airlines deal was found by Cheapflights users on 6/16. 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 8/67:40 pmORD - SDF
Nonstop1h 34mUnited Airlines
Mon 8/118:40 amSDF - ORD
Nonstop1h 37mUnited Airlines
Deal found 6/16$77
This Southwest deal was found by Cheapflights users on 6/16. 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 8/43:20 pmSTL - MDW
Nonstop1h 10mSouthwest
Wed 8/61:10 pmMDW - STL
Nonstop1h 15mSouthwest
Deal found 6/16$77
This United Airlines deal was found by Cheapflights users on 6/16. 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 9/225:30 pmSTL - ORD
Nonstop1h 25mUnited Airlines
Thu 9/252:20 pmORD - STL
Nonstop1h 24mUnited Airlines
Deal found 6/16$77
This American Airlines deal was found by Cheapflights users on 6/15. 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 8/711:46 amORD - SDF
Nonstop1h 26mAmerican Airlines
Mon 8/116:08 pmSDF - ORD
Nonstop1h 40mAmerican Airlines
Deal found 6/15$91
This American Airlines deal was found by Cheapflights users on 6/15. 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 8/48:01 pmSTL - ORD
Nonstop1h 29mAmerican Airlines
Wed 8/65:05 pmORD - STL
Nonstop1h 18mAmerican Airlines
Deal found 6/15$91
This Southwest deal was found by Cheapflights users on 6/16. 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 8/44:50 pmSTL - ORD
1 stop6h 15mSouthwest
Wed 8/63:10 pmORD - STL
1 stop4h 55mSouthwest
Deal found 6/16$97
This Southwest deal was found by Cheapflights users on 6/16. 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 8/61:50 pmORD - SDF
1 stop5h 05mSouthwest
Mon 8/115:30 amSDF - ORD
1 stop8h 15mSouthwest
Deal found 6/16$102
This Kissandfly.com deal was found by Cheapflights users on 6/16. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/311:00 pmSTL - ORD
1 stop3h 32mSouthern / Mokulele
Thu 8/710:34 pmORD - STL
Nonstop1h 17mSouthern / Mokulele
Deal found 6/16$135
This Southwest deal was found by Cheapflights users on 6/16. 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.
Thu 8/79:40 amMDW - IND
Nonstop1h 05mSouthwest
Mon 8/115:15 pmIND - MDW
Nonstop1h 05mSouthwest
Deal found 6/16$137
This American Airlines deal was found by Cheapflights users on 6/15. 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 8/48:35 pmORD - IND
Nonstop1h 28mAmerican Airlines
Mon 8/1110:30 amIND - ORD
Nonstop1h 26mAmerican Airlines
Deal found 6/15$137
This Priceline deal was found by Cheapflights users on 6/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/45:01 amORD - IND
1 stop8h 38mFrontier
Mon 7/73:30 pmIND - ORD
1 stop9h 52mFrontier
Deal found 6/15$144

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 June 17, 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

ChicagoLouisville

MDW - SDF

MDWSDF

Chicago Midway

Thu 8/7

3:30 pm-5:40 pm

Nonstop1h 10m

Louisville Intl

Mon 8/11

7:10 pm-7:30 pm

Nonstop1h 20m

$77

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Wed 8/6

7:40 pm-10:14 pm

Nonstop1h 34m

Louisville Intl

Mon 8/11

8:40 am-9:17 am

Nonstop1h 37m

$77

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Mon 8/4

3:20 pm-4:30 pm

Nonstop1h 10m

Chicago Midway

Wed 8/6

1:10 pm-2:25 pm

Nonstop1h 15m

$77

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Thu 8/7

11:46 am-2:12 pm

Nonstop1h 26m

Louisville Intl

Mon 8/11

6:08 pm-6:48 pm

Nonstop1h 40m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Mon 8/4

8:01 pm-9:30 pm

Nonstop1h 29m

Chicago O'Hare Intl

Wed 8/6

5:05 pm-6:23 pm

Nonstop1h 18m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Mon 8/4

4:50 pm-11:05 pm

1 stop6h 15m

Chicago O'Hare Intl

Wed 8/6

3:10 pm-8:05 pm

1 stop4h 55m

$97

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Wed 8/6

1:50 pm-7:55 pm

1 stop5h 05m

Louisville Intl

Mon 8/11

5:30 am-12:45 pm

1 stop8h 15m

$102

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Thu 7/31

1:00 pm-4:32 pm

1 stop3h 32m

Chicago O'Hare Intl

Thu 8/7

10:34 pm-11:51 pm

Nonstop1h 17m

$135

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Tue 9/2

5:30 pm-6:55 pm

Nonstop1h 25m

Chicago O'Hare Intl

Thu 9/11

2:20 pm-3:44 pm

Nonstop1h 24m

$137

ChicagoIndianapolis

ORD - IND

ORDIND

Chicago O'Hare Intl

Mon 8/4

8:35 pm-11:03 pm

Nonstop1h 28m

Indianapolis

Mon 8/11

10:30 am-10:56 am

Nonstop1h 26m

$137

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

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, August is the cheapest month in which you can book a flight from Illinois to Indiana (average of $297). Flying from Illinois to Indiana in March is currently the most expensive (average of $360). 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 June 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Indiana as you normally would.

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 June 17, 2025.

The most flights from USIL to USIN are scheduled on a Monday (70 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (58 on average).

Rainfall in Indiana by month

Plan your trip to Indiana by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Indiana ranges from 2.3 - 5.1 inches per month. May is typically the wettest month, when rainfall can reach 5.1 in. February is typically the driest time to visit Indiana when rainfall is around 2.3 in.

Temperature in Indiana by month

Plan your trip to Indiana by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Indiana, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

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 June 17, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Illinois to Indiana to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,278 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,963 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,801 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Allegiant Air
7.3
Good
722 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Comfort

7.8

Crew

8.5

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • 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 $39 on Southwest. Other airlines that offer cheap prices include United Airlines from $39 and American Airlines from $46 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, August is the cheapest month in which you can book a flight from Illinois to Indiana (average of $297). Flying from Illinois to Indiana in March is currently the most expensive (average of $360). 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 June 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$174Average$324FlexibilityNo cancel feeOn-time69%
Southern / MokuleleCheapest$176Average$231FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$179Average$328FlexibilityNo cancel feeOn-time71%

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