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$79+ Cheap flights from St. Louis to Indianapolis (STL - IND)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IND
Aug 27 — Sep 31
Thu 8/27
Thu 9/3
1 adult, Economy
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Cheap flight deals from St. Louis to Indianapolis

Cheapest flights from St. Louis to Indianapolis
Explore the most affordable flight options available from St. Louis to Indianapolis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1110:35 am
STL
-
IND
1 stop24h 09m
Frontier
Wed 10/1412:39 pm
IND
-
STL
1 stop22h 01m
Frontier
Deal found 7/24$119
This Kiwi.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1110:35 am
STL
-
IND
2 stops25h 14m
Multiple Airlines
Wed 10/1412:39 pm
IND
-
STL
1 stop22h 01m
Multiple Airlines
Deal found 7/24$191
This Kiwi.com deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:17 pm
STL
-
IND
1 stop22h 09m
Frontier
Sun 8/309:59 pm
IND
-
STL
2 stops20h 23m
Frontier
Deal found 7/24$193
This Frontier deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/158:08 pm
STL
-
IND
1 stop22h 50m
Frontier
Mon 8/176:32 pm
IND
-
STL
1 stop6h 27m
Frontier
Deal found 7/24$221
This American Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:00 am
STL
-
IND
1 stop4h 32m
American Airlines
Thu 9/108:52 pm
IND
-
STL
1 stop4h 35m
American Airlines
Deal found 7/26$233
This Southwest deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:50 am
STL
-
IND
2 stops9h 20m
Southwest
Mon 8/175:00 pm
IND
-
STL
1 stop6h 05m
Southwest
Deal found 7/24$238
This Southwest deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:50 am
STL
-
IND
2 stops9h 20m
Southwest
Sat 8/296:35 am
IND
-
STL
2 stops7h 40m
Southwest
Deal found 7/24$243
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/262:50 pm
STL
-
IND
1 stop3h 30m
Southwest
Fri 8/285:25 am
IND
-
STL
1 stop7h 10m
Southwest
Deal found 7/27$271
This Frontier deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:34 pm
STL
-
IND
1 stop12h 54m
Frontier
Sun 10/2511:37 am
IND
-
STL
1 stop9h 02m
Frontier
Deal found 7/25$323

Find flight deals from St. Louis to Indianapolis

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Indianapolis (IND). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$119
(Kiwi.com)

One-way from

$79
(Kiwi.com)

Popular in

March

Cheapest in

August

Average price

$346
Provider with most accurate pricing for Lambert-St Louis-Indianapolis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Indianapolis flights.
Search Deals
From Lambert-St Louis to Indianapolis
Search Deals
One-way flight from Lambert-St Louis to Indianapolis
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($173 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis to Indianapolis 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, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2026.
Use the filters below to find and compare flights from St. Louis to Indianapolis that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Sat 9/5

5:45 am-12:10 pm

1 stop5h 25m

Indianapolis

Tue 9/8

5:00 pm-9:45 pm

1 stop5h 45m

$233
Quickest round-trip

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Tue 9/8

6:00 am-11:32 am

1 stop4h 32m

Indianapolis

Thu 9/10

8:52 pm-12:27 am

1 stop4h 35m

$233

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Tue 8/25

7:15 am-12:25 pm

1 stop4h 10m

Indianapolis

Tue 9/1

1:55 pm-6:45 pm

1 stop5h 50m

$233

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Sat 1/16

9:00 am-8:00 pm

2 stops10h 00m

Indianapolis

Tue 1/19

7:15 pm-9:45 pm

1 stop3h 30m

$238

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Sat 8/15

6:50 am-5:10 pm

2 stops9h 20m

Indianapolis

Mon 8/17

5:00 pm-10:05 pm

1 stop6h 05m

$238

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Sat 8/22

1:40 pm-9:35 pm

2 stops6h 55m

Indianapolis

Sat 8/29

2:45 pm-7:45 pm

1 stop6h 00m

$238
Cheapest one-way

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Sun 8/16

6:34 pm-11:25 am

1 stop15h 51m

$79

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Sat 8/22

8:25 am-4:35 pm

1 stop7h 10m

$117

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Wed 9/30

5:55 am-1:10 pm

1 stop6h 15m

$117

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Mon 9/21

2:45 pm-10:25 pm

2 stops6h 40m

$122

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/24

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

Compare providers for flights from St. Louis to Indianapolis

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Indianapolis in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Indianapolis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Indianapolis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Indianapolis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Indianapolis flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Indianapolis flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Indianapolis

Have a flexible travel schedule? Discover the best time to fly to Indianapolis from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Indianapolis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from St. Louis to Indianapolis?

    Southwest and American Airlines can get you from St. Louis to Indianapolis in just under 4h 32m. Your travel time can differ by up to 53m. The distance between St. Louis and Indianapolis is about 228 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from St. Louis to Indianapolis that include hotel bookings?

    Yes. In addition to deals on St. Louis to Indianapolis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Indianapolis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Indianapolis.

  • Can I find deals for business class flights from St. Louis to Indianapolis?

    Yes. Cheapflights offers flight deals from St. Louis to Indianapolis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Indianapolis?

Book flights to Indianapolis if you plan to visit one of these locations
Terre Haute
Muncie
Greenwood
Kokomo
Fishers
Westfield
Franklin
Mooresville
Plainfield
Anderson
Crawfordsville
Carmel
Noblesville
Bloomington
Speedway

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