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Cheap flights from Indiana to St. Louis from $43

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Indiana to St. Louis departing on 3/28. 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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0 bags

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Find the cheapest flights from Indiana to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:59 am - 8:24 am
ORD
-
STL
1h 25mnonstop
American Airlines Logo
7:05 am - 8:36 am
STL
-
ORD
1h 31mnonstop
$91American Airlines
Fri, Apr 17 - Mon, Apr 20
Southwest Logo
8:15 am - 9:35 am
MDW
-
STL
1h 20mnonstop
Southwest Logo
8:50 pm - 9:55 pm
STL
-
MDW
1h 05mnonstop
$97Southwest
Wed, Mar 11 - Wed, Mar 18
United Airlines Logo
9:33 pm - 10:59 pm
ORD
-
STL
1h 26mnonstop
United Airlines Logo
7:00 pm - 8:35 pm
STL
-
ORD
1h 35mnonstop
$128United Airlines
Sat, Mar 7 - Mon, Mar 9
United Airlines Logo
9:30 pm - 10:56 pm
ORD
-
STL
1h 26mnonstop
United Airlines Logo
6:30 am - 7:59 am
STL
-
ORD
1h 29mnonstop
$134United Airlines
Wed, Apr 1 - Sat, Apr 4
Delta Logo
6:00 am - 11:09 am
MDW
-
STL
5h 09m
1 stop
Delta Logo
5:21 pm - 10:31 pm
STL
-
MDW
5h 10m
1 stop
$157Delta
Tue, Mar 10 - Tue, Mar 10
Delta Logo
5:30 am - 11:09 am
ORD
-
STL
5h 39m
1 stop
Delta Logo
6:59 pm - 11:54 pm
STL
-
ORD
4h 55m
1 stop
$157Delta
Tue, Mar 10 - Tue, Mar 10
Frontier Logo
6:00 am - 6:51 am
MDW
-
STL
24h 51m
1 stop
Frontier Logo
11:32 am - 10:19 pm
STL
-
MDW
10h 47m
1 stop
$179Frontier
Fri, Feb 27 - Wed, Mar 18
Frontier Logo
5:20 pm - 11:19 pm
CVG
-
STL
6h 59m
1 stop
Frontier Logo
11:21 am - 6:36 pm
STL
-
CVG
6h 15m
1 stop
$181Frontier
Fri, Apr 17 - Sun, Apr 19
Multiple Airlines Logo
7:27 pm - 6:51 am
IND
-
STL
12h 24m
1 stop
Multiple Airlines Logo
8:22 pm - 2:17 pm
STL
-
IND
16h 55m
2 stops
$197Multiple Airlines
Thu, Feb 26 - Mon, Mar 2
Multiple Airlines Logo
2:43 pm - 6:50 am
IND
-
STL
17h 07m
2 stops
Multiple Airlines Logo
8:13 pm - 11:17 am
STL
-
IND
14h 04m
1 stop
$231Multiple Airlines
Sun, Apr 26 - Wed, Apr 29

Delta flights from Indiana to St. Louis

Our best Delta deals on Indiana to St. Louis flight tickets
Delta
Mar 10
MDW6:00 amChicago Midway
5h 09m
1 stop
STL11:09 amLambert-St Louis
Mar 10
STL5:21 pmLambert-St Louis
5h 10m
1 stop
MDW10:31 pmChicago Midway
$157
Delta
Apr 14
ORD7:00 amChicago O'Hare Intl
9h 50m
2 stops
STL4:50 pmLambert-St Louis
Apr 21
STL6:48 amLambert-St Louis
5h 57m
1 stop
ORD12:45 pmChicago O'Hare Intl
$162
Delta
Apr 14
ORD8:52 amChicago O'Hare Intl
7h 58m
2 stops
STL4:50 pmLambert-St Louis
Apr 21
STL6:20 amLambert-St Louis
6h 25m
2 stops
ORD12:45 pmChicago O'Hare Intl
$167

American Airlines flights from Indiana to St. Louis

Our best American Airlines deals on Indiana to St. Louis flight tickets
American Airlines
Apr 17
ORD6:59 amChicago O'Hare Intl
1h 25m
STL8:24 amLambert-St Louis
Apr 20
STL7:05 amLambert-St Louis
1h 31m
ORD8:36 amChicago O'Hare Intl
$91
American Airlines
Apr 25
ORD10:30 pmChicago O'Hare Intl
1h 16m
STL11:46 pmLambert-St Louis
Apr 26
STL7:05 amLambert-St Louis
1h 31m
ORD8:36 amChicago O'Hare Intl
$97
American Airlines
Mar 5
ORD10:34 pmChicago O'Hare Intl
1h 14m
STL11:48 pmLambert-St Louis
Mar 8
STL6:00 amLambert-St Louis
1h 28m
ORD7:28 amChicago O'Hare Intl
$98

momondo Fare Finder

 
Customize your flight search to find flights from Indiana to St. Louis 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, momondo users made 832,500 searches. Data last updated February 15, 2026.
Use the filters below to find and compare flights from Indiana to St. Louis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Fri 4/17

6:59 am-8:24 am

Nonstop1h 25m

Lambert-St Louis

Mon 4/20

7:05 am-8:36 am

Nonstop1h 31m

$91

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Wed 3/11

8:15 am-9:35 am

Nonstop1h 20m

Lambert-St Louis

Wed 3/18

8:50 pm-9:55 pm

Nonstop1h 05m

$97

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Sat 3/7

9:33 pm-10:59 pm

Nonstop1h 26m

Lambert-St Louis

Mon 3/9

7:00 pm-8:35 pm

Nonstop1h 35m

$128

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Wed 4/1

9:30 pm-10:56 pm

Nonstop1h 26m

Lambert-St Louis

Sat 4/4

6:30 am-7:59 am

Nonstop1h 29m

$134

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Tue 3/10

6:00 am-11:09 am

1 stop5h 09m

Lambert-St Louis

Tue 3/10

5:21 pm-10:31 pm

1 stop5h 10m

$157

ChicagoSt. Louis

ORD - STL

ORDSTL

Chicago O'Hare Intl

Tue 3/10

5:30 am-11:09 am

1 stop5h 39m

Lambert-St Louis

Tue 3/10

6:59 pm-11:54 pm

1 stop4h 55m

$157

ChicagoSt. Louis

MDW - STL

MDWSTL

Chicago Midway

Fri 2/27

6:00 am-6:51 am

1 stop24h 51m

Lambert-St Louis

Wed 3/18

11:32 am-10:19 pm

1 stop10h 47m

$179

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Fri 4/17

5:20 pm-11:19 pm

1 stop6h 59m

Lambert-St Louis

Sun 4/19

11:21 am-6:36 pm

1 stop6h 15m

$181

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

Thu 2/26

7:27 pm-6:51 am

1 stop12h 24m

Lambert-St Louis

Mon 3/2

8:22 pm-2:17 pm

2 stops16h 55m

$197

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

Sun 4/26

2:43 pm-6:50 am

2 stops17h 07m

Lambert-St Louis

Wed 4/29

8:13 pm-11:17 am

1 stop14h 04m

$231

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

How to get the cheapest flight ticket from Indiana to St. Louis

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 St. Louis?

In general, November is the cheapest month to fly from Indiana to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $256. The month of January is another great option to travel to St. Louis, with average flight prices from Indiana averaging around $265.

Cheap Indiana to St. Louis flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Indiana to St. Louis

Fastest flight time

1h 10m

Direct flights

Every day

Airports in St. Louis

1 airport
The fastest flight from Indiana to St. Louis takes 1h 10m
Direct flights go from Indiana to St. Louis every day.
There is 1 airport in St. Louis. From Indiana there are direct flights to Lambert-St Louis (STL).
Search flight deals

  • When did momondo last update prices for flights from Indiana to Lambert-St Louis Airport?

    Prices for flights from Indiana to Lambert-St Louis Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Indiana to Lambert-St Louis Airport?

  • How old do you have to be to fly from Indiana to Lambert-St Louis Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Indiana to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents required for your trip to Lambert-St Louis Airport 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 Lambert-St Louis Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Indiana to St. Louis

Compare and see reviews for airlines that fly from Indiana to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $196Free CancellationRating
7.2
11,297 reviews
Search American Airlines flights
DeltaPriceFrom $198Free CancellationRating
7.9
8,205 reviews
Search Delta flights
United AirlinesPriceFrom $213Free CancellationRating
7.4
9,296 reviews
Search United Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
Florissant
O'Fallon
Collinsville
St. Peters
Fenton
Wentzville
Alton
Farmington
Clayton
Edwardsville
Eureka
Festus
Litchfield
Glencoe
Shrewsbury

Why use momondo?

Why should I use momondo to find a flight deal from Indiana to St. Louis?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Indiana to St. Louis. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Indiana to St. Louis with flexible booking policies on momondo?

Yes. All flights to St. Louis from Indiana on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Indiana to St. Louis?

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 St. Louis from Indiana.

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

Of course. momondo tracks the price of Indiana to St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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