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$109+ 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 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IND
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Find 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 October 29, 2025.

This American Airlines deal was found by Cheapflights users on 10/28. 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 11/253:43 pmSTL - IND
1 stop5h 13mAmerican Airlines
Tue 12/28:42 amIND - STL
1 stop6h 01mAmerican Airlines
Deal found 10/28$287
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Thu 11/1311:07 amSTL - IND
2 stops31h 57mMultiple Airlines
Sun 11/168:39 pmIND - STL
1 stop13h 28mMultiple Airlines
Deal found 10/28$314
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/117:45 pmSTL - IND
2 stops35h 59mFrontier
Sat 11/157:05 pmIND - STL
1 stop15h 02mFrontier
Deal found 10/27$315
This Southwest deal was found by Cheapflights users on 10/28. 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.
Tue 11/256:30 pmSTL - IND
1 stop4h 50mSouthwest
Tue 12/27:50 amIND - STL
2 stops7h 50mSouthwest
Deal found 10/28$322
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Thu 11/2010:53 amSTL - IND
1 stop7h 58mMultiple Airlines
Sun 11/309:55 pmIND - STL
1 stop21h 23mMultiple Airlines
Deal found 10/28$335
This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/276:35 pmSTL - IND
1 stop4h 09mUnited Airlines
Sun 12/287:15 amIND - STL
1 stop6h 12mUnited Airlines
Deal found 10/27$341
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Thu 11/137:45 pmSTL - IND
1 stop22h 59mFrontier
Sun 11/168:39 pmIND - STL
1 stop13h 28mFrontier
Deal found 10/28$351
This Kiwi.com deal was found by Cheapflights users on 10/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/47:45 pmSTL - IND
2 stops35h 59mFrontier
Mon 11/107:39 pmIND - STL
1 stop14h 28mFrontier
Deal found 10/26$352
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Wed 11/267:03 pmSTL - IND
1 stop22h 23mFrontier
Sun 11/309:55 pmIND - STL
1 stop21h 23mFrontier
Deal found 10/28$365

Cheap 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 October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$257
(Delta)

One-way from

$109
(Delta)

Popular in

March

Cheapest in

April

Average price

$430
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. 3% potential increase in price ($12 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 October 29, 2025.
Use the filters below to find and compare flights from St. Louis to Indianapolis that are best for you.

Fly from

St. Louis

Fly to

Indianapolis

Route

Depart

Return

Price

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Tue 11/25

3:43 pm-9:56 pm

1 stop5h 13m

Indianapolis

Tue 12/2

8:42 am-1:43 pm

1 stop6h 01m

$287

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Thu 11/13

11:07 am-8:04 pm

2 stops31h 57m

Indianapolis

Sun 11/16

8:39 pm-9:07 am

1 stop13h 28m

$314

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Tue 11/11

7:45 pm-8:44 am

2 stops35h 59m

Indianapolis

Sat 11/15

7:05 pm-9:07 am

1 stop15h 02m

$315

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Tue 11/25

6:30 pm-12:20 am

1 stop4h 50m

Indianapolis

Tue 12/2

7:50 am-2:40 pm

2 stops7h 50m

$322

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Tue 11/25

3:14 pm-9:08 pm

2 stops28h 54m

Indianapolis

Tue 12/2

9:03 am-10:33 pm

1 stop14h 30m

$322

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Thu 11/20

10:53 am-7:51 pm

1 stop7h 58m

Indianapolis

Sun 11/30

9:55 pm-6:18 pm

1 stop21h 23m

$335

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Sat 12/27

6:35 pm-11:44 pm

1 stop4h 09m

Indianapolis

Sun 12/28

7:15 am-12:27 pm

1 stop6h 12m

$341

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Tue 11/4

7:45 pm-8:44 am

2 stops35h 59m

Indianapolis

Mon 11/10

7:39 pm-9:07 am

1 stop14h 28m

$352

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Wed 11/26

7:03 pm-6:26 pm

1 stop22h 23m

Indianapolis

Sun 11/30

9:55 pm-6:18 pm

1 stop21h 23m

$365

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Mon 11/24

6:40 am-11:28 am

1 stop3h 48m

$109

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 17 results
1
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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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on St. Louis-Indianapolis flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Indianapolis

What is the cheapest month to book a flight from St. Louis to Indianapolis?

Currently, December is the cheapest month in which you can book a flight from St. Louis to Indianapolis (average of $114). Flying from St. Louis to Indianapolis in March is currently the most expensive (average of $381). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from STL to IND?

Find hourly flight availability from St. Louis to Indianapolis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 29, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 80% on flights from St. Louis to Indianapolis by exploring options for tickets in the evening.

Reviews of airlines servicing Indianapolis

Get insights into the airlines that provide service to Indianapolis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Indianapolis. Reviews last updated October 29, 2025.
See what other customers who have flown with American Airlines from St. Louis to Indianapolis have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,030 reviews

Overall

7.2

Boarding

7.5

Comfort

7.2

Crew

8.0

Food

6.4

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
11,030 reviews
American Airlines
7.2
Good
11,030 reviews

Overall

7.2

Boarding

7.5

Comfort

7.2

Crew

8.0

Food

6.4

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

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?

    American Airlines, Frontier, and Southwest can get you from St. Louis to Indianapolis in just under 4h 50m. Your travel time can differ by up to 31h 09m. 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.

  • What is the cheapest airline to fly from St. Louis to Indianapolis round-trip?

    Flying on American Airlines is currently your cheapest option to Indianapolis, with prices starting at $226. American Airlines is 39% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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.

  • What is the cheapest month to book a flight from St. Louis to Indianapolis?

    Currently, December is the cheapest month in which you can book a flight from St. Louis to Indianapolis (average of $114). Flying from St. Louis to Indianapolis in March is currently the most expensive (average of $381). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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
Noblesville
Fishers
Greenwood
Anderson
Kokomo
Bloomington
Plainfield
Franklin
Carmel
Crawfordsville
Speedway

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from St. Louis to Indianapolis

Discover the top airline that operate flights from St. Louis to Indianapolis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$226Average$296FlexibilityNo cancel feeOn-time71%

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