$68 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 2/10. 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$132
St. Louis
St. Louis1 stop$159
Chicago
Chicago1 stop$132
St. Louis
St. Louis1 stop$159

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, Feb 10 - Wed, Feb 18
Multiple Airlines Logo
9:13 pm - 7:41 pm
IND
-
ORD
23h 28m1 stop
Multiple Airlines Logo
8:30 am - 8:28 pm
ORD
-
IND
10h 58m1 stop
$132Multiple Airlines
Sat, Feb 7 - Tue, Feb 10
Frontier Logo
8:01 pm - 9:10 am
IND
-
ORD
14h 09m1 stop
Frontier Logo
8:30 am - 12:28 pm
ORD
-
IND
26h 58m1 stop
$134Frontier
Sat, Feb 7 - Wed, Feb 18
Multiple Airlines Logo
5:10 am - 7:44 pm
IND
-
ORD
15h 34m1 stop
Multiple Airlines Logo
8:30 am - 8:28 pm
ORD
-
IND
10h 58m1 stop
$138Multiple Airlines
Mon, Feb 9 - Wed, Feb 18
Multiple Airlines Logo
8:26 pm - 11:22 am
IND
-
ORD
15h 56m1 stop
Multiple Airlines Logo
8:30 am - 8:28 pm
ORD
-
IND
10h 58m1 stop
$141Multiple Airlines
Tue, Feb 10 - Mon, Feb 16
Multiple Airlines Logo
9:13 pm - 7:41 pm
IND
-
ORD
23h 28m1 stop
Multiple Airlines Logo
9:41 pm - 8:32 am
ORD
-
IND
9h 51m1 stop
$144Multiple Airlines
Wed, Feb 4 - Wed, Feb 11
Spirit Airlines Logo
10:38 am - 9:44 pm
IND
-
ORD
12h 06m1 stop
Spirit Airlines Logo
7:20 am - 10:48 pm
ORD
-
IND
14h 28m1 stop
$151Spirit Airlines
Mon, Feb 2 - Mon, Feb 9
Southwest Logo
4:25 pm - 4:25 pm
IND
-
MDW
1h 00mnonstop
Southwest Logo
9:40 am - 11:50 am
MDW
-
IND
1h 10mnonstop
$171Southwest
Wed, Jan 28 - Wed, Feb 4
Delta Logo
12:10 pm - 4:37 pm
IND
-
STL
5h 27m1 stop
Delta Logo
11:23 am - 7:08 pm
STL
-
IND
6h 45m1 stop
$195Delta
Wed, Feb 18 - Thu, Feb 19
United Airlines Logo
6:10 pm - 10:59 pm
IND
-
STL
5h 49m1 stop
United Airlines Logo
7:41 am - 2:58 pm
STL
-
IND
6h 17m1 stop
$215United Airlines
Wed, Feb 18 - Thu, Feb 19
Southwest Logo
6:40 am - 12:20 pm
IND
-
STL
6h 40m1 stop
Southwest Logo
2:55 pm - 11:05 pm
STL
-
IND
7h 10m2 stops
$220Southwest
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 $237 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 $252.

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.

No, with an average price for the route of $215, prices are generally cheapest when you fly direct.

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 November and March, when the average cost of round-trip tickets is $327 and $319 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 Friday, 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 Sundays 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 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$68
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly with an average 4% increase in price.
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 $513 on average. Morning departures are around 45% 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 $1,011.

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 $214 one-way - $416 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 4250 reviews
7.5Entertainment
8.1Boarding
8.6Crew
8.0Comfort
7.0Food
Airline reviews

The flight crew was extremely rude and especially not helpful when our flight was delayed.

2.0 MediocreMatthew, Jan 2026
DAL - SAN
Read more Southwest reviews

The flight crew was extremely rude and especially not helpful when our flight was delayed.

Pretty seamless, just a tad bit late in taking off and landing.

Flight was fine other than there was a gate change that I was not notified of. By chance I happened to check my phone and saw the change, otherwise, we would have missed our connecting flight.

Haven’t flown on SW in years. Flight was on time departing and arriving. Served vegan butter onion flavored pretzels which were bad. Coke served was in a tiny paper cup. Crew was not engaging. Felt like they were going through the motions. Old plane, tight seats and no leg room.

Check-in, Boarding and flight were smooth. All the employees and crew was very nice and funny. They gave the kids crayons and workbooks to keep them occupied which was a big win. I’ve flown Southwest many times and that’s the first time I’ve seen that and it is a great addition.

Flight was on time. Wi-fi was a little spotty/slow. Boarding and exit were efficient.

Okay, not wonderful. Short flight. Wi-fi didn't work properly. Stuck waiting for a gate to open upon arrival for 20 or so minutes.

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

They did the one thing that really matters - got to Chicago early.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Very bad! They kept delaying my flight and wouldn’t do anything about it

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

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

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth 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

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

Information on your arrival and departure airports