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$119+ Cheap flights from Indianapolis to St. Louis (IND - STL)

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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
IND — STL
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Cheap flight deals from Indianapolis to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Indianapolis (IND) to St. Louis (STL). 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

$258
(Kiwi.com)

One-way from

$120
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$326
Provider with most accurate pricing for Indianapolis-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Indianapolis-Lambert-St Louis flights.
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From Indianapolis to Lambert-St Louis
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One-way flight from Indianapolis to Lambert-St Louis
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Highest demand for flights based on searches. 1% potential increase in price ($6 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Indianapolis to St. Louis

Cheapest flights from Indianapolis to St. Louis
Explore the most affordable flight options available from Indianapolis to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Fri 11/148:59 pmIND - STL
1 stop19h 39mMultiple Airlines
Tue 11/187:45 pmSTL - IND
2 stops23h 19mMultiple Airlines
Deal found 10/29$222
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.
Sun 12/75:30 amIND - STL
1 stop18h 03mMultiple Airlines
Mon 12/810:47 amSTL - IND
1 stop7h 03mMultiple Airlines
Deal found 10/27$258
This American Airlines deal was found by Cheapflights users on 10/29. 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.
Fri 11/218:10 amIND - STL
1 stop6h 07mAmerican Airlines
Mon 11/243:43 pmSTL - IND
1 stop4h 07mAmerican Airlines
Deal found 10/29$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.
Wed 11/125:05 amIND - STL
2 stops30h 07mMultiple Airlines
Sun 11/1611:17 amSTL - IND
1 stop23h 05mMultiple Airlines
Deal found 10/28$289
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/75:55 amIND - STL
1 stop7h 15mSouthwest
Mon 12/88:25 amSTL - IND
2 stops7h 35mSouthwest
Deal found 10/27$292
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/128:59 pmIND - STL
2 stops21h 58mSpirit Airlines
Sun 11/166:21 pmSTL - IND
3 stops27h 59mSpirit Airlines
Deal found 10/28$298
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Fri 11/217:00 amIND - STL
1 stop26h 57mMultiple Airlines
Mon 11/247:04 pmSTL - IND
2 stops21h 08mMultiple Airlines
Deal found 10/29$327
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 11/279:03 amIND - STL
1 stop15h 54mMultiple Airlines
Sun 11/303:14 pmSTL - IND
1 stop18h 14mMultiple Airlines
Deal found 10/29$348
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.
Tue 11/259:54 pmIND - STL
1 stop21h 24mMultiple Airlines
Tue 12/23:30 pmSTL - IND
2 stops24h 42mMultiple Airlines
Deal found 10/28$356

Cheapflights Fare Finder

 
Customize your flight search to find flights from Indianapolis 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, Cheapflights users made 2,558,603 searches. Data last updated October 29, 2025.
Use the filters below to find and compare flights from Indianapolis to St. Louis that are best for you.

Fly from

Indianapolis

Fly to

St. Louis

Route

Depart

Return

Price

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

Fri 11/14

8:59 pm-3:38 pm

1 stop19h 39m

Lambert-St Louis

Tue 11/18

7:45 pm-8:04 pm

2 stops23h 19m

$222

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

Sun 12/7

5:30 am-10:33 pm

1 stop18h 03m

Lambert-St Louis

Mon 12/8

10:47 am-6:50 pm

1 stop7h 03m

$258

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

Fri 11/21

8:10 am-1:17 pm

1 stop6h 07m

Lambert-St Louis

Mon 11/24

3:43 pm-8:50 pm

1 stop4h 07m

$287

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

Sun 12/7

5:55 am-12:10 pm

1 stop7h 15m

Lambert-St Louis

Mon 12/8

8:25 am-5:00 pm

2 stops7h 35m

$292

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

Wed 11/12

8:59 pm-5:57 pm

2 stops21h 58m

Lambert-St Louis

Sun 11/16

6:21 pm-11:20 pm

3 stops27h 59m

$298

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

Tue 3/10

10:04 am-3:01 pm

1 stop5h 57m

Lambert-St Louis

Wed 3/11

5:45 pm-12:04 am

1 stop5h 19m

$317

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

Fri 11/21

7:00 am-8:57 am

1 stop26h 57m

Lambert-St Louis

Mon 11/24

7:04 pm-5:12 pm

2 stops21h 08m

$327

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

Thu 11/27

9:03 am-11:57 pm

1 stop15h 54m

Lambert-St Louis

Sun 11/30

3:14 pm-10:28 am

1 stop18h 14m

$348

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

Tue 11/25

9:54 pm-6:18 pm

1 stop21h 24m

Lambert-St Louis

Tue 12/2

3:30 pm-5:12 pm

2 stops24h 42m

$356

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

Fri 11/14

8:59 pm-3:38 pm

1 stop19h 39m

$119

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 20 results
1
2

Compare providers for flights from Indianapolis to St. Louis

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 Indianapolis to St. Louis in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 Indianapolis-St. Louis flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Indianapolis-St. Louis flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Indianapolis-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Indianapolis-St. Louis 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 Indianapolis-St. Louis 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 Indianapolis to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Indianapolis 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 Indianapolis to St. Louis

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

Currently, October is the cheapest month in which you can book a flight from Indianapolis to St. Louis (average of $85). Flying from Indianapolis to St. Louis in May is currently the most expensive (average of $263). 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 IND to STL?

Find hourly flight availability from Indianapolis to St. Louis. 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.

A simple way to save on the total cost of your ticket is to fly from Indianapolis to St. Louis in the evening. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight at noon.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated October 29, 2025.
Peruse reviews from past customers who have flown with Delta and American Airlines from Indianapolis to St. Louis to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,992 reviews

Overall

7.9

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,992 reviews
Delta
7.9
Good
7,992 reviews

Overall

7.9

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,032 reviews
Delta
7.9
Good
7,992 reviews

Overall

7.9

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from Indianapolis to St. Louis. 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 Indianapolis to St. Louis?

    For as low as $287, American Airlines can have you in St. Louis from Indianapolis in 6h 07m. Indianapolis and St. Louis are separated by a distance of 228 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Indianapolis to St. Louis round-trip?

    Flying on American Airlines is currently your cheapest option to St. Louis, with prices starting at $196. Another option worth looking into is Delta, starting at $266 round trip. American Airlines is 48% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Indianapolis to St. Louis 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 Indianapolis to St. Louis?

    Currently, October is the cheapest month in which you can book a flight from Indianapolis to St. Louis (average of $85). Flying from Indianapolis to St. Louis in May is currently the most expensive (average of $263). 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Indianapolis to St. Louis

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Top 2 airlines flying from Indianapolis to St. Louis

Discover the top 2 airlines that operate flights from Indianapolis to St. Louis. 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$196Average$301FlexibilityNo cancel feeOn-time71%
DeltaCheapest$266Average$460FlexibilityNo cancel feeOn-timeN/A

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