What airlines fly to Illinois?

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Illinois from Indianapolis according to our data. United Airlines is the first choice among our users, with 52% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 3 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

How many flights depart from Indianapolis to Illinois on average per day?

The number of flights available between Indianapolis and Illinois is 52 per day as of February 2026. The most frequent departure time is 9:00AM, with 44% of daily flights leaving at noon.

What is the cheapest airline that flies from Indianapolis to Illinois?

Southwest, Frontier, and United Airlines are the most popular carriers operating from Indianapolis to Illinois

How many flights depart from Indianapolis to Illinois on average per week?

The number of flights available between Indianapolis and Illinois is 368 per week as of February 2026. The most frequent departure day is Fri, with 19% of weekly flights leaving on this day.

When did momondo last update prices for flights from Indianapolis Airport to Illinois?

Prices for flights from Indianapolis Airport to Illinois are refreshed on a daily basis.

How many operators does momondo search for flights from Indianapolis Airport to Illinois?

As of February 2026, there are 3 operators available to choose from for flights from Indianapolis Airport to Illinois.

How old do you have to be to fly from Indianapolis Airport to Illinois?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Indianapolis Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$63 Cheap Flights from Indianapolis to Illinois in 2026

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Find the cheapest flights from Indianapolis to Illinois

Round-trip

One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

12:12 pm - 6:54 pm

IND

ORD

7h 42m

1 stop

5:01 am - 11:17 am

ORD

IND

5h 16m

1 stop

$136Multiple Airlines

Thu, May 7 - Mon, May 11

6:00 am - 6:20 am

IND

ORD

1h 20mnonstop

12:55 pm - 3:08 pm

ORD

IND

1h 13mnonstop

$141United Airlines

Fri, Apr 10 - Fri, Apr 10

6:00 pm - 6:00 pm

IND

MDW

1h 00mnonstop

9:45 pm - 11:55 pm

MDW

IND

1h 10mnonstop

$141Southwest

Thu, Apr 9 - Mon, Apr 13

1:50 pm - 2:12 pm

IND

ORD

1h 22mnonstop

6:45 am - 8:53 am

ORD

IND

1h 08mnonstop

$142American Airlines

Thu, Apr 9 - Mon, Apr 13

6:00 am - 12:22 am

IND

ORD

19h 22m

1 stop

6:01 pm - 11:15 pm

ORD

IND

28h 14m

1 stop

$144Spirit Airlines

Wed, Mar 18 - Tue, Mar 24

12:12 pm - 10:39 pm

IND

ORD

11h 27m

1 stop

5:09 pm - 12:08 am

ORD

IND

5h 59m

1 stop

$145Multiple Airlines

Fri, May 15 - Sat, May 16

4:55 pm - 4:55 pm

IND

MDW

1h 00mnonstop

10:00 am - 12:05 pm

MDW

IND

1h 05mnonstop

$149Southwest

Tue, Mar 31 - Wed, May 13

12:12 pm - 10:39 pm

IND

ORD

11h 27m

1 stop

5:01 am - 11:17 am

ORD

IND

5h 16m

1 stop

$154Frontier

Fri, May 8 - Sun, May 10

8:27 pm - 9:48 am

IND

STL

14h 21m

1 stop

9:55 pm - 12:57 pm

STL

IND

14h 02m

1 stop

$183Frontier

Thu, Apr 9 - Thu, Apr 16

3:48 pm - 11:56 pm

IND

STL

9h 08m

1 stop

5:51 am - 3:18 pm

STL

IND

8h 27m

1 stop

$237American Airlines

Sat, May 9 - Tue, May 12

Frontier flights from Indianapolis to Illinois

Our best Frontier deals on Indianapolis to Illinois flight tickets

Frontier

May 8

IND12:12 pmIndianapolis

11h 27m

1 stop

ORD10:39 pmChicago O'Hare Intl

May 10

ORD5:01 amChicago O'Hare Intl

5h 16m

1 stop

IND11:17 amIndianapolis

$154

Frontier

May 8

IND3:50 pmIndianapolis

10h 02m

1 stop

ORD12:52 amChicago O'Hare Intl

May 10

ORD5:11 amChicago O'Hare Intl

11h 05m

1 stop

IND5:16 pmIndianapolis

$160

Frontier

Apr 9

IND7:10 pmIndianapolis

14h 07m

1 stop

ORD8:17 amChicago O'Hare Intl

Apr 13

ORD5:15 amChicago O'Hare Intl

5h 08m

1 stop

IND11:23 amIndianapolis

$161

United Airlines flights from Indianapolis to Illinois

Our best United Airlines deals on Indianapolis to Illinois flight tickets

United Airlines

Apr 10

IND6:00 amIndianapolis

1h 20m

ORD6:20 amChicago O'Hare Intl

Apr 10

ORD12:55 pmChicago O'Hare Intl

1h 13m

IND3:08 pmIndianapolis

$141

United Airlines

Mar 31

IND6:00 amIndianapolis

1h 20m

ORD6:20 amChicago O'Hare Intl

May 13

ORD5:55 pmChicago O'Hare Intl

1h 13m

IND8:08 pmIndianapolis

$149

United Airlines

Apr 10

IND6:05 pmIndianapolis

1h 22m

ORD6:27 pmChicago O'Hare Intl

Apr 11

ORD7:30 amChicago O'Hare Intl

1h 19m

IND9:49 amIndianapolis

$157

Fly from

Fly to

Route

Depart

Return

Price

IndianapolisChicago

IND - ORD

INDORD

Indianapolis

Thu 5/7

12:12 pm-6:54 pm

1 stop7h 42m

Chicago O'Hare Intl

Mon 5/11

5:01 am-11:17 am

1 stop5h 16m

$136

IndianapolisChicago

IND - ORD

INDORD

Indianapolis

Fri 4/10

6:00 am-6:20 am

Nonstop1h 20m

Chicago O'Hare Intl

Fri 4/10

12:55 pm-3:08 pm

Nonstop1h 13m

$141

IndianapolisChicago

IND - MDW

INDMDW

Indianapolis

Thu 4/9

6:00 pm-6:00 pm

Nonstop1h 00m

Chicago Midway

Mon 4/13

9:45 pm-11:55 pm

Nonstop1h 10m

$141

IndianapolisChicago

IND - ORD

INDORD

Indianapolis

Thu 4/9

1:50 pm-2:12 pm

Nonstop1h 22m

Chicago O'Hare Intl

Mon 4/13

6:45 am-8:53 am

Nonstop1h 08m

$142

IndianapolisChicago

IND - ORD

INDORD

Indianapolis

Wed 3/18

6:00 am-12:22 am

1 stop19h 22m

Chicago O'Hare Intl

Tue 3/24

6:01 pm-11:15 pm

1 stop28h 14m

$144

IndianapolisChicago

IND - ORD

INDORD

Indianapolis

Fri 5/15

12:12 pm-10:39 pm

1 stop11h 27m

Chicago O'Hare Intl

Sat 5/16

5:09 pm-12:08 am

1 stop5h 59m

$145

IndianapolisChicago

IND - MDW

INDMDW

Indianapolis

Tue 3/31

4:55 pm-4:55 pm

Nonstop1h 00m

Chicago Midway

Wed 5/13

10:00 am-12:05 pm

Nonstop1h 05m

$149

IndianapolisChicago

IND - ORD

INDORD

Indianapolis

Fri 5/8

12:12 pm-10:39 pm

1 stop11h 27m

Chicago O'Hare Intl

Sun 5/10

5:01 am-11:17 am

1 stop5h 16m

$154

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

Thu 4/9

8:27 pm-9:48 am

1 stop14h 21m

Lambert-St Louis

Thu 4/16

9:55 pm-12:57 pm

1 stop14h 02m

$183

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

Sat 5/9

3:48 pm-11:56 pm

1 stop9h 08m

Lambert-St Louis

Tue 5/12

5:51 am-3:18 pm

1 stop8h 27m

$237

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Indianapolis to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Indianapolis is in August. Flight prices, which tend to average around $202, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of August, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $246.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Indianapolis to Illinois is on a Thursday when prices can be found for as low as $559. Flights from Indianapolis to Illinois on a Monday will generally be more expensive and average around $726. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the morning. Flights from Indianapolis to Illinois during this time can be as low as $501. Flights at noon are often more expensive with an average ticket price of $920.

What is the cheapest Indianapolis to Illinois flight route?

Fly from Indianapolis to Chicago O'Hare Intl for the best Indianapolis - Illinois flight prices

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

You are more likely to see cheaper flights to Illinois from Indianapolis when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $299 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Indianapolis for as low as $135 on momondo.

What cabin class options are available on Indianapolis to Illinois flights?

There are 4 cabin classes available to choose from on Indianapolis to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Indianapolis to Illinois flights?

No. A direct flight is the cheapest option for a flight between Indianapolis to Illinois.

Cheap Indianapolis to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Indianapolis to Illinois

Best Price Found	$183
Fastest flight time	0h 55m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Indianapolis in the past 72 hours is $183. The best round-trip flight deal from Indianapolis to Illinois found on momondo in the last 72 hours is $360.

The fastest flight from Indianapolis to Illinois takes 0h 55m

Direct flights go from Indianapolis to Illinois every day.

There are 98 airports in Illinois. From Indianapolis there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL).

Search flight deals

When did momondo last update prices for flights from Indianapolis Airport to Illinois?
Prices for flights from Indianapolis Airport to Illinois are refreshed on a daily basis.
How many operators does momondo search for flights from Indianapolis Airport to Illinois?
As of February 2026, there are 3 operators available to choose from for flights from Indianapolis Airport to Illinois.
How old do you have to be to fly from Indianapolis Airport to Illinois?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Indianapolis Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Indianapolis to Illinois?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Indianapolis to Illinois is Boeing 737 MAX 8 (19.17% of total bookings). The next most popular plane models are Boeing 737-800 Passenger/BBJ2 (winglets) (9.23%), Boeing 737-800 (9.17%), and Airbus A320-100/200 (8.76%).

Best airlines flying from Indianapolis to Illinois

Compare and see reviews for airlines that fly from Indianapolis to Illinois with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $137	Free Cancellation	Rating 7.2 11,357 reviews	Search American Airlines flights
United Airlines	PriceFrom $164	Free Cancellation	Rating 7.4 9,349 reviews	Search United Airlines flights
Southwest	PriceFrom $192	Free Cancellation	Rating 8.0 4,301 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Indianapolis to Illinois?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Indianapolis to Illinois. momondo saves you time and could save you money on your trip.

Can I find flights from Indianapolis to Illinois with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Indianapolis to Illinois flights to just show those with flexible booking policies.

How can momondo help me find flights from Indianapolis to Illinois?

Once you have performed a search for Indianapolis to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Indianapolis to Illinois right now. Can momondo alert me if prices change?

Price alerts on flights to Illinois from Indianapolis are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Flights to New Yorkfrom $56

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Flights to Las Vegasfrom $30

Flights to Washington, D.C.from $56

Flights to Bostonfrom $75

Flights to Atlantafrom $49

Flights to Dallasfrom $54

Flights to Seattlefrom $48

Cheap flights from Indianapolis to Illinois from $63

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Indianapolis to Illinois departing on 4/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Indianapolis to Illinois

What is the cheapest month to fly to Illinois?

What is the cheapest day to depart on your flight to Illinois?

What is the cheapest time of day to depart on your flight to Illinois?

What is the cheapest Indianapolis to Illinois flight route?

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

What cabin class options are available on Indianapolis to Illinois flights?

Can stopping save me money on Indianapolis to Illinois flights?

What is the cheapest airline that flies from Indianapolis to Illinois?

What airlines fly to Illinois?

How many flights depart from Indianapolis to Illinois on average per day?

How many flights depart from Indianapolis to Illinois on average per week?

Cheap Indianapolis to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Indianapolis to Illinois

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

Best airlines flying from Indianapolis to Illinois

Compare and see reviews for airlines that fly from Indianapolis to Illinois with momondo

Why use momondo?

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

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Popular flights according to clicks in the last 7 days on momondo

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