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$55+ Cheap flights from Indianapolis (IND) 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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
IND — ORD
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Indianapolis to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Indianapolis (IND) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$110
(Frontier)

One-way from

$55
(Frontier)

Good round-trip deal

$427 or less

Good one-way deal

$208 or less
From Indianapolis to Illinois
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One-way flight from Indianapolis to Illinois
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Price to beat on a round-trip flight from Indianapolis to Illinois.
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Price to beat on a one-way flight from Indianapolis to Illinois.
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Find flight deals from Indianapolis to Illinois

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

This Frontier deal was found by Cheapflights users on 1/21. 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 3/66:47 pmIND - ORD
1 stop6h 36mFrontier
Mon 3/108:50 amORD - IND
1 stop6h 55mFrontier
Deal found 1/21$110
This CheapOair deal was found by Cheapflights users on 1/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/198:40 pmIND - ORD
1 stop15h 36mSpirit Airlines
Wed 2/265:15 amORD - IND
1 stop13h 20mSpirit Airlines
Deal found 1/20$146
This Justfly.com deal was found by Cheapflights users on 1/20. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/16:47 pmIND - ORD
1 stop6h 28mMultiple Airlines
Tue 4/85:22 pmORD - IND
1 stop18h 05mMultiple Airlines
Deal found 1/20$169
This United Airlines deal was found by Cheapflights users on 1/21. 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.
Thu 3/61:53 pmIND - ORD
Nonstop1h 20mUnited Airlines
Mon 3/1010:55 amORD - IND
Nonstop1h 08mUnited Airlines
Deal found 1/21$217
This CheapOair deal was found by Cheapflights users on 1/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/256:45 amIND - STL
1 stop8h 57mSpirit Airlines
Thu 2/274:00 pmSTL - IND
1 stop6h 55mSpirit Airlines
Deal found 1/20$224
This Southwest deal was found by Cheapflights users on 1/19. 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.
Tue 2/117:05 amIND - ORD
1 stop7h 55mSouthwest
Tue 2/114:35 pmORD - IND
1 stop5h 10mSouthwest
Deal found 1/19$231
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Fri 4/412:23 pmIND - ORD
Nonstop1h 20mAmerican Airlines
Sun 4/67:30 amORD - IND
Nonstop1h 13mAmerican Airlines
Deal found 1/20$233
This Delta deal was found by Cheapflights users on 1/21. 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.
Thu 2/1310:29 amIND - ORD
1 stop3h 26mDelta
Sun 2/166:15 amORD - IND
1 stop4h 25mDelta
Deal found 1/21$237
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1910:29 amIND - MDW
1 stop3h 36mDelta
Sun 2/236:28 pmMDW - IND
1 stop3h 22mDelta
Deal found 1/20$237
This Southwest deal was found by Cheapflights users on 1/20. 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.
Wed 2/194:15 pmIND - MDW
1 stop4h 10mSouthwest
Wed 2/2610:05 amMDW - IND
2 stops6h 05mSouthwest
Deal found 1/20$242
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/67:49 pmIND - STL
1 stop4h 48mDelta
Tue 3/116:00 amSTL - IND
1 stop4h 41mDelta
Deal found 1/20$267
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/49:49 amIND - STL
1 stop7h 36mUnited Airlines
Sat 2/88:15 amSTL - IND
1 stop5h 35mUnited Airlines
Deal found 1/20$297

Find flights from Indianapolis to Illinois within your budget

Customize your flight search to find flights from Indianapolis 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 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

IndianapolisChicago

IND - ORD

INDORD

Indianapolis

Thu 3/6

6:47 pm-12:23 am

1 stop6h 36m

Chicago O'Hare Intl

Mon 3/10

8:50 am-4:45 pm

1 stop6h 55m

$110

IndianapolisChicago

IND - ORD

INDORD

Indianapolis

Tue 2/18

8:40 pm-11:05 am

1 stop15h 25m

Chicago O'Hare Intl

Tue 2/25

5:15 am-7:35 pm

1 stop13h 20m

$136

IndianapolisChicago

IND - ORD

INDORD

Indianapolis

Fri 2/21

4:20 pm-9:15 am

1 stop17h 55m

Chicago O'Hare Intl

Sun 2/23

5:15 am-7:35 pm

1 stop13h 20m

$209

IndianapolisChicago

IND - ORD

INDORD

Indianapolis

Fri 2/14

6:41 am-6:59 am

Nonstop1h 18m

Chicago O'Hare Intl

Mon 2/17

8:51 pm-10:56 pm

Nonstop1h 05m

$217

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

Tue 2/25

6:45 am-2:42 pm

1 stop8h 57m

Lambert-St Louis

Thu 2/27

4:00 pm-11:55 pm

1 stop6h 55m

$224

IndianapolisChicago

IND - ORD

INDORD

Indianapolis

Thu 2/13

2:17 pm-6:25 pm

1 stop5h 08m

Chicago O'Hare Intl

Mon 2/17

6:15 pm-10:50 pm

1 stop3h 35m

$237

IndianapolisChicago

IND - MDW

INDMDW

Indianapolis

Wed 2/19

10:29 am-1:05 pm

1 stop3h 36m

Chicago Midway

Sun 2/23

6:28 pm-10:50 pm

1 stop3h 22m

$237

IndianapolisChicago

IND - MDW

INDMDW

Indianapolis

Wed 2/19

4:15 pm-7:25 pm

1 stop4h 10m

Chicago Midway

Wed 2/26

10:05 am-5:10 pm

2 stops6h 05m

$242

IndianapolisChicago

IND - ORD

INDORD

Indianapolis

Sat 4/5

4:05 pm-4:25 pm

Nonstop1h 20m

Chicago O'Hare Intl

Sat 4/5

9:25 pm-11:44 pm

Nonstop1h 19m

$249

IndianapolisChicago

IND - ORD

INDORD

Indianapolis

Mon 2/24

8:25 am-3:00 pm

1 stop7h 35m

Chicago O'Hare Intl

Tue 2/25

4:35 pm-10:45 pm

1 stop5h 10m

$252

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 31 results
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Best time to book a flight from Indianapolis to Illinois

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

Travel insights for flights from Indianapolis to Illinois

Get recent, data-driven insights about flights from Indianapolis to Illinois including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from Indianapolis to Illinois (average of $245). Flying from Indianapolis to Illinois in March is currently the most expensive (average of $320). 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 IND to IL?

Find hourly flight availability from Indianapolis 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 21, 2025.

When flying from Indianapolis to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Indianapolis to Illinois

Explore weekly flight availability from Indianapolis 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 January 21, 2025.

The most flights from IND to USIL are scheduled on a Monday (57 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (43 on average).

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 21, 2025.
Peruse reviews from past customers who have flown with Spirit Airlines, United Airlines and American Airlines from Indianapolis to Illinois to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,985 reviews
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,662 reviews

Overall

8.1

Comfort

8.1

Entertainment

7.7

Boarding

8.2

Crew

8.7

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Indianapolis to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Indianapolis to Illinois?

    Most people fly from Indianapolis (IND) if they book a flight from Indianapolis to Illinois. Indianapolis is conveniently located just 8.3 mi from Indianapolis’s city center.

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

    One-way options have recently been found by users for as low as $55 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $68 and United Airlines from $109 one-way.

  • What are the most popular routes from Indianapolis to Illinois?

    While some choose either Indianapolis - Chicago Midway or Indianapolis - Lambert-St Louis, Indianapolis - Chicago O'Hare Intl is the most popular route from Indianapolis to Illinois.

  • What are the most reliable airlines from Indianapolis to Illinois?

    The top 3 most reliable airlines when flying from Indianapolis to Illinois are Air Chathams (100%), Copa Airlines (92%) and ANA (89%).

  • What are the cheapest flights from Indianapolis to Illinois?

    On average you can expect to pay $1,123 for a flight from Indianapolis to Illinois. The cheapest flight overall is $110 while the most popular route, (Indianapolis - Chicago O'Hare Intl) is currently priced at $154.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Indianapolis to Illinois (average of $245). Flying from Indianapolis to Illinois in March is currently the most expensive (average of $320). 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 Indianapolis to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Indianapolis to Illinois

Discover the top 2 airlines that operate flights from Indianapolis 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 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$178Average$288FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$178Average$263FlexibilityNo cancel feeOn-time71%
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