$61 Find Cheap Flights from Indianapolis to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Indianapolis to Illinois departing on 11/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Indianapolis to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Indianapolis to Illinois, as well as popular online travel agencies
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Cheap Flights from Indianapolis to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago1 stop$139
St. Louis
St. Louis1 stop$222
Chicago
Chicago1 stop$139
St. Louis
St. Louis1 stop$222

Book Cheap Indianapolis to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Indianapolis to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Indianapolis to Illinois

Tue, Dec 23 - Tue, Dec 30
Frontier Logo
6:39 pm - 10:24 pmIND-ORD
28h 45m1 stop
Frontier Logo
6:00 am - 5:44 pmORD-IND
10h 44m1 stop
$139Frontier
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Mon, Nov 10 - Fri, Nov 14
Frontier Logo
1:47 pm - 12:59 amIND-ORD
12h 12m1 stop
Frontier Logo
5:11 am - 11:22 amORD-IND
5h 11m1 stop
$143Frontier
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Wed, Nov 19 - Wed, Nov 26
Spirit Airlines Logo
5:05 am - 2:31 pmIND-ORD
10h 26m1 stop
Spirit Airlines Logo
2:01 pm - 9:08 pmORD-IND
6h 07m1 stop
$157Spirit Airlines
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Wed, Nov 12 - Wed, Nov 19
Spirit Airlines Logo
5:05 am - 11:20 amIND-ORD
7h 15m1 stop
Spirit Airlines Logo
2:31 pm - 11:20 pmORD-IND
7h 49m1 stop
$163Spirit Airlines
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Wed, Dec 24 - Wed, Dec 31
American Airlines Logo
11:30 am - 11:54 amIND-ORD
1h 24mnonstop
American Airlines Logo
4:49 pm - 7:03 pmORD-IND
1h 14mnonstop
$197American Airlines
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Tue, Nov 25 - Wed, Dec 31
American Airlines Logo
8:42 am - 9:05 amIND-ORD
1h 23mnonstop
American Airlines Logo
6:36 pm - 9:03 pmORD-IND
1h 27mnonstop
$217American Airlines
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Sat, Dec 6 - Mon, Dec 8
United Airlines Logo
6:00 am - 6:20 amIND-ORD
1h 20mnonstop
United Airlines Logo
11:10 am - 1:17 pmORD-IND
1h 07mnonstop
$237United Airlines
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Sat, Nov 15 - Sat, Nov 22
Southwest Logo
7:10 am - 7:25 amIND-MDW
1h 15mnonstop
Southwest Logo
9:50 am - 11:55 amMDW-IND
1h 05mnonstop
$237Southwest
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Sat, Nov 15 - Sat, Nov 22
Southwest Logo
12:25 pm - 6:45 pmIND-MDW
7h 20m1 stop
Southwest Logo
9:50 am - 11:55 amMDW-IND
1h 05mnonstop
$247Southwest
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Tue, Nov 25 - Tue, Dec 2
United Airlines Logo
6:00 am - 10:51 amIND-STL
5h 51m1 stop
United Airlines Logo
6:42 pm - 11:38 pmSTL-IND
3h 56m1 stop
$287United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Indianapolis to Illinois flights

Get data-powered insights and trends into flights from Indianapolis to Illinois to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Indianapolis to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Indianapolis found in the last 72 hours was to Chicago, at $233 round-trip. The most popular route is from Indianapolis (IND) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $233.

Can I save money by flying with a layover from Indianapolis to Illinois?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $265 on average.

What is the cheapest month to fly from Indianapolis to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Indianapolis to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Indianapolis to Illinois is August, when tickets cost $196 (return) on average. On the other hand, the most expensive months are March and July, when the average cost of round-trip tickets is $319 and $303 respectively.

What’s the cheapest day of the week to fly from Indianapolis to Illinois?

The average price of all round-trip flights from Indianapolis to Illinois clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Illinois on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Indianapolis to Illinois. For your return ticket, we recommend flying on a Wednesday and avoiding Mondays for the best deals.

How far in advance should I book a flight from Indianapolis to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Indianapolis to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Indianapolis to Illinois, you should book around 4 weeks before departure, which saves you about 38% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$61
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 15% lower on average.
Flight from Indianapolis to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Indianapolis to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Indianapolis to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Indianapolis to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Indianapolis to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Indianapolis to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Indianapolis to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Indianapolis to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Indianapolis to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Illinois?

    The cheapest time of day to fly to Illinois is generally in the morning, when round-trip flights cost $519 on average. Morning departures are around 47% cheaper than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,052.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Indianapolis to the following destinations at these prices or less: Chicago $179 one-way - $339 round-trip

Reviews of the top 3 airlines serving from Indianapolis to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Indianapolis to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Indianapolis to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4235 reviews
7.0Food
8.0Comfort
7.5Entertainment
8.1Boarding
8.6Crew
Airline reviews

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

10.0 ExcellentStacy, Oct 2025SMF - DEN
Read more Southwest reviews

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Great flight. Outstanding Service. Southwest was able to put us on a direct flight to Denver when the connection could have been affected by a later arrival to Baltimore. The direct flight was less expensive that the flight with the connection in Baltimore.

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

I was re-booked onto another flight because my original flight was delayed and I would have missed my connector. I ended up in the “C” group after paying extra to be in the “A “ group on the original flight. At least if you’re going to re-book people, re-book them into the same group.

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

mandatory demand customer to check their carry on because not enough people check bags.

Connecting flight is on time and boarding was a breeze!

Excellent. Would encourage Southwest to keep current boarding procedures with free style seating. Makes for a fantastic experience

As always, the entire Southwest experience was perfect. Purchasing the tickets on the Southwest web site was effortless, departure and arrival gates were spotless and comfortable, plane was clean and comfortable, crew was excellent and flight was on time. Wheelchair service in Las Vegas at departure was somewhat chaotic and disjointed, but I am not sure if that was Southwest problem, airport problem or combination.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Trip was great. A wild landing in Ottawa with the wind and rain, but the pilot did a great job. Always love flying United.👍

Excellent experience. Starting with the agent at the Premier bag drop who noticed I was very early for my scheduled flight and offered to rebook me on an earlier flight with my seat preference. She would not let me leave the counter until she knew that all of the changes and new boarding pass showed up on my United app. At the gate, the flight boarded quickly such that we departed early and the flight was smooth. We arrived 20 minutes early at ORD and I was able to be home in time for dinner. One of the best flights I've had.

Salina to travers city was great! But the sept 24 Tranverse city was not! Traverse city to chichago was cancelled, i went to Denver & got to Salina 6 hours later!

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Flight attendant in first class gave poor service (like he didn't want to be there) and food was awful. We sat waiting for gate upon arrival over 45 mins.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Overall it was good. I missed my connection but I was put on another flight.

It was a typical flight. We had a delay which seems to be the normality now. And we had no in flight service due to conditions.

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

Terrible. Flight delayed for more than 8 hours with only a $12 meal voucher provided for the inconvenience. The airplane did not have breaks on arrival yet they still made us go through the motions and board on time knowing we could not take off then sit for 40+ minutes before having to get of the time. A complete waste of my time. I cannot believe they can stay business with these shenanigans. I’ll avoid this company like the plague moving forward as the lack of accountability is disgraceful.

This was the best 2 flights I have had with American out of SGF. Great crew both flights.

Excellent - explanations were clear staff was nice and flight was comfortable

Lost bag and 2 days no word leaving for cruise no clothes or stuff

Any flight to ORD after about 2pm this summer has been challenging. Flight was delayed getting in (coming from ORD) and that led to it not leaving before a ground stop due to lightening before they could fuel the plane, and so forth. They made up some time but we were still late in arriving at ORD, and that led to missed connections.

Food was ok, but not as good as I have had before on AA.

Pretty good. The food was just mediocre, the boarding and crew were good.

My flight got switched and my prepaid bag didnt transfer over properly so I paid to check ANOTHER BAG. I was placed in a middle seat and it was just miserable. At least it was a bulkhead row so I had legroom. The flight just never seem3d to end

Everything you need to know for your flight from Indianapolis to Illinois

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