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

Southwest, American Airlines, and United Airlines are the most popular carriers operating from Illinois to Indiana

What airlines fly to Indiana?

American Airlines, United Airlines and Southern / Mokulele are the top three most popular airlines that fly to Indiana from Illinois according to our data. American Airlines is the first choice among our users, with 55% of people opting to fly with this airline when traveling to Indiana. Keep in mind that there are 3 different airlines that fly to Indiana on a routine basis, so you have a few additional options to choose from.

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

As of August 2025, 202 flights take off from Illinois and land in Indiana each day. The most common flight departure time for this route is 10:00PM, with 43% of daily flights taking off in the evening.

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

As of August 2025, there are 1,416 flights per week flying from Illinois to Indiana. The most common day of the week flights depart is Sat, with 20% of flights taking off on this day.

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

Prices for flights from Illinois to Indiana were last updated today.

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

As of August 2025, there are 5 operators available to choose from for flights from Illinois to Indiana.

How old do you have to be to fly from Illinois to Indiana?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Indiana.

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

The travel and health documents you'll need for your trip to Indiana may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Indiana. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$46 Cheap Flights from Illinois to Indiana in 2025

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Find the cheapest flights from Illinois to Indiana

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

11:35 am - 12:40 pmSTL-MDW

1h 05mnonstop

5:40 pm - 6:55 pmMDW-STL

1h 15mnonstop

$91Southwest

Find Deal

Tue, Aug 26 - Wed, Aug 27

9:56 am - 11:20 amSTL-ORD

1h 24mnonstop

8:31 pm - 9:53 pmORD-STL

1h 22mnonstop

$91American Airlines

Find Deal

Tue, Sep 9 - Tue, Sep 30

6:35 am - 8:05 amSTL-ORD

1h 30mnonstop

2:20 pm - 3:44 pmORD-STL

1h 24mnonstop

$108United Airlines

Find Deal

Sat, Sep 6 - Mon, Sep 8

5:00 am - 6:30 amSTL-ORD

1h 30mnonstop

1:03 pm - 2:27 pmORD-STL

1h 24mnonstop

$147United Airlines

Find Deal

Thu, Sep 25 - Sun, Sep 28

7:46 pm - 12:13 pmORD-IND

15h 27m1 stop

5:01 pm - 9:37 amIND-ORD

17h 36m1 stop

$165Frontier

Find Deal

Sat, Aug 30 - Sat, Sep 6

1:00 pm - 4:32 pmSTL-ORD

3h 32m1 stop

1:10 pm - 4:35 pmORD-STL

3h 25m1 stop

$168Southern / Mokulele

Find Deal

Thu, Aug 28 - Thu, Sep 4

7:00 am - 3:40 pmORD-IND

7h 40m1 stop

9:29 am - 4:57 pmIND-ORD

8h 28m1 stop

$168Frontier

Find Deal

Sat, Aug 23 - Mon, Aug 25

1:00 pm - 4:19 pmSTL-ORD

3h 19m1 stop

8:15 am - 12:00 pmORD-STL

3h 45m1 stop

$169Southern / Mokulele

Find Deal

Thu, Oct 16 - Sun, Oct 19

11:15 am - 4:51 pmORD-SDF

4h 36m1 stop

12:40 pm - 4:39 pmSDF-ORD

4h 59m1 stop

$177Delta

Find Deal

Sat, Sep 13 - Wed, Jan 14

4:31 pm - 9:35 pmMDW-SDF

4h 04m1 stop

10:15 am - 12:35 pmSDF-MDW

3h 20m1 stop

$177Delta

Find Deal

Sat, Sep 13 - Thu, Jan 15

American Airlines flights from Illinois to Indiana

Our best American Airlines deals on Illinois to Indiana flight tickets

American Airlines

Sep 9

STL9:56 amLambert-St Louis

1h 24m

ORD11:20 amChicago O'Hare Intl

Sep 30

ORD8:31 pmChicago O'Hare Intl

1h 22m

STL9:53 pmLambert-St Louis

$91

Find similar

American Airlines

Aug 23

STL6:00 amLambert-St Louis

1h 24m

ORD7:24 amChicago O'Hare Intl

Aug 25

ORD10:34 pmChicago O'Hare Intl

1h 17m

STL11:51 pmLambert-St Louis

$94

Find similar

American Airlines

Aug 23

STL6:00 amLambert-St Louis

1h 24m

ORD7:24 amChicago O'Hare Intl

Aug 25

ORD10:34 pmChicago O'Hare Intl

1h 17m

STL11:51 pmLambert-St Louis

$95

Find similar

United Airlines flights from Illinois to Indiana

Our best United Airlines deals on Illinois to Indiana flight tickets

United Airlines

Sep 6

STL6:35 amLambert-St Louis

1h 30m

ORD8:05 amChicago O'Hare Intl

Sep 8

ORD2:20 pmChicago O'Hare Intl

1h 24m

STL3:44 pmLambert-St Louis

$108

Find similar

United Airlines

Sep 25

STL5:00 amLambert-St Louis

1h 30m

ORD6:30 amChicago O'Hare Intl

Sep 28

ORD1:03 pmChicago O'Hare Intl

1h 24m

STL2:27 pmLambert-St Louis

$147

Find similar

United Airlines

Aug 26

STL5:30 pmLambert-St Louis

1h 25m

ORD6:55 pmChicago O'Hare Intl

Aug 27

ORD2:20 pmChicago O'Hare Intl

1h 24m

STL3:44 pmLambert-St Louis

$149

Find similar

Fly from

Fly to

Route

Depart

Return

Price

St. LouisChicago

STL - MDW

STLMDW

Lambert-St Louis

Tue 8/26

11:35 am-12:40 pm

Nonstop1h 05m

Chicago Midway

Wed 8/27

5:40 pm-6:55 pm

Nonstop1h 15m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Tue 9/9

9:56 am-11:20 am

Nonstop1h 24m

Chicago O'Hare Intl

Tue 9/30

8:31 pm-9:53 pm

Nonstop1h 22m

$91

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Sat 9/6

6:35 am-8:05 am

Nonstop1h 30m

Chicago O'Hare Intl

Mon 9/8

2:20 pm-3:44 pm

Nonstop1h 24m

$108

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Thu 9/25

5:00 am-6:30 am

Nonstop1h 30m

Chicago O'Hare Intl

Sun 9/28

1:03 pm-2:27 pm

Nonstop1h 24m

$147

ChicagoIndianapolis

ORD - IND

ORDIND

Chicago O'Hare Intl

Sat 8/30

7:46 pm-12:13 pm

1 stop15h 27m

Indianapolis

Sat 9/6

5:01 pm-9:37 am

1 stop17h 36m

$165

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Thu 8/28

1:00 pm-4:32 pm

1 stop3h 32m

Chicago O'Hare Intl

Thu 9/4

1:10 pm-4:35 pm

1 stop3h 25m

$168

ChicagoIndianapolis

ORD - IND

ORDIND

Chicago O'Hare Intl

Sat 8/23

7:00 am-3:40 pm

1 stop7h 40m

Indianapolis

Mon 8/25

9:29 am-4:57 pm

1 stop8h 28m

$168

St. LouisChicago

STL - ORD

STLORD

Lambert-St Louis

Thu 10/16

1:00 pm-4:19 pm

1 stop3h 19m

Chicago O'Hare Intl

Sun 10/19

8:15 am-12:00 pm

1 stop3h 45m

$169

ChicagoLouisville

ORD - SDF

ORDSDF

Chicago O'Hare Intl

Sat 9/13

11:15 am-4:51 pm

1 stop4h 36m

Louisville Intl

Wed 1/14

12:40 pm-4:39 pm

1 stop4h 59m

$177

ChicagoLouisville

MDW - SDF

MDWSDF

Chicago Midway

Sat 9/13

4:31 pm-9:35 pm

1 stop4h 04m

Louisville Intl

Thu 1/15

10:15 am-12:35 pm

1 stop3h 20m

$177

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 Illinois to Indiana

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 Indiana?

The cheapest month to fly to Indiana from Illinois is in December. Flight prices, which tend to average around $229, are often lower during this time because this is during the off-season. The month of January is another great option to travel to Indiana, with average flight prices from Illinois averaging around $248.

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

Our data shows that Wednesday is the least expensive day to fly to Indiana. Tickets to fly out on this day can be as low as $271. On the other hand, Sunday is the most expensive day to depart from Illinois because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $372.

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

Our data shows that the cheapest Illinois to Indiana flights are usually those with departure times in the morning. Our users have found flights to Indiana in the morning for as low as $285. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $370 on average. Flights to Indiana from Illinois in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Illinois to Indiana flight route?

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

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

You are more likely to see cheaper flights to Indiana from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Indiana for around $301 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Indiana from Illinois for as low as $198 on momondo.

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

There are 4 cabin classes available to choose from on Illinois to Indiana 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 Illinois to Indiana flights?

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

Cheap Illinois to Indiana flight deals and tips

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

Best Price Found	$46
Fastest flight time	1h 04m
Direct flights	Every day
Airports in Indiana	6 airports

The best one-way flight to Indiana from Illinois in the past 72 hours is $46. The best round-trip flight deal from Illinois to Indiana found on momondo in the last 72 hours is $91.

The fastest flight from Illinois to Indiana takes 1h 04m

Direct flights go from Illinois to Indiana every day.

There are 6 airports near Indiana: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Fort Wayne (FWA), Louisville Intl (SDF), Cincinnati Cinci./N. Kentucky (CVG), Indianapolis (IND)

Search flight deals

When did momondo last update prices for flights from Illinois to Indiana?
Prices for flights from Illinois to Indiana were last updated today.
How many operators does momondo search for flights from Illinois to Indiana?
As of August 2025, there are 5 operators available to choose from for flights from Illinois to Indiana.
How old do you have to be to fly from Illinois to Indiana?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Indiana.
What documentation or ID do you need to fly to Indiana?
The travel and health documents you'll need for your trip to Indiana may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Indiana. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Illinois to Indiana?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Illinois to Indiana is Embraer 170 (19.12% of total bookings). The next most popular plane models are Embraer 175 (Enhanced Winglets) (16.92%), Embraer 175 (16.34%), and Airbus A319 (15.64%).

Best airlines flying from Illinois to Indiana

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $174	Free Cancellation	Rating 7.4 8,904 reviews	Search United Airlines flights
American Airlines	PriceFrom $179	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southern / Mokulele	PriceFrom $189	Free Cancellation	Rating 6.4 26 reviews	Search Southern / Mokulele flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Indiana for you.

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

Yes. momondo enables you to select and highlight flights to Indiana from Illinois with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Indiana from Illinois.

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

If you are simply researching potential flights to Indiana, momondo offers a useful price alert feature which will track prices for flights to Indiana from Illinois and alert you when they change.

An easier way to manage your Indiana 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.

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Find better results for your trip to Indiana

Popular cities in Indiana

Flights to New Yorkfrom $48

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Flights to Orlandofrom $54

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Flights to San Franciscofrom $61

Flights to Washington, D.C.from $48

Flights to Bostonfrom $77

Flights to Atlantafrom $29

Flights to Dallasfrom $55

Flights to Seattlefrom $93

Cheap flights from Illinois to Indiana from $46

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Indiana departing on 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Illinois to Indiana

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

American Airlines flights from Illinois to Indiana

Our best American Airlines deals on Illinois to Indiana flight tickets

United Airlines flights from Illinois to Indiana

Our best United Airlines deals on Illinois to Indiana flight tickets

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Use the filters below to find and compare flights from Illinois to Indiana that are best for you.

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How to get the cheapest flight ticket from Illinois to Indiana

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

What is the cheapest month to fly to Indiana?

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

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

What is the cheapest Illinois to Indiana flight route?

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

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

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

There are 4 cabin classes available to choose from on Illinois to Indiana 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 Illinois to Indiana flights?

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

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

Southwest, American Airlines, and United Airlines are the most popular carriers operating from Illinois to Indiana

What airlines fly to Indiana?

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

As of August 2025, 202 flights take off from Illinois and land in Indiana each day. The most common flight departure time for this route is 10:00PM, with 43% of daily flights taking off in the evening.

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

As of August 2025, there are 1,416 flights per week flying from Illinois to Indiana. The most common day of the week flights depart is Sat, with 20% of flights taking off on this day.

Cheap Illinois to Indiana flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Indiana

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

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

How old do you have to be to fly from Illinois to Indiana?

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

What is the most popular plane model from Illinois to Indiana?

Best airlines flying from Illinois to Indiana

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

Why use momondo?

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

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

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

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

An easier way to manage your Indiana 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 Indiana

Popular cities in Indiana

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