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$60+ 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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
IND — STL
feb. 26 — mar. 51
jue. 2/26
jue. 3/5
1 adult, Economy
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Cheap 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 enero 27, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
mar. 2/249:13 pm
IND
-
STL
1 stop26h 14m
Frontier
mar. 3/33:49 pm
STL
-
IND
1 stop19h 39m
Frontier
Deal found 1/27$152
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
mar. 2/249:13 pm
IND
-
STL
1 stop26h 14m
Multiple Airlines
mar. 3/33:49 pm
STL
-
IND
1 stop15h 43m
Multiple Airlines
Deal found 1/27$156
This Kiwi.com deal was found by Cheapflights users on 1/26. 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.
jue. 2/512:38 pm
IND
-
STL
1 stop19h 13m
Frontier
lun. 2/95:42 pm
STL
-
IND
1 stop25h 46m
Frontier
Deal found 1/26$171
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
jue. 2/267:27 pm
IND
-
STL
1 stop12h 24m
Frontier
sáb. 2/288:17 pm
STL
-
IND
2 stops18h 37m
Frontier
Deal found 1/27$173
This Kiwi.com deal was found by Cheapflights users on 1/26. 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.
jue. 2/512:38 pm
IND
-
STL
1 stop19h 13m
Multiple Airlines
lun. 2/98:22 pm
STL
-
IND
2 stops36h 21m
Multiple Airlines
Deal found 1/26$180
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/512:38 pm
IND
-
STL
1 stop19h 13m
Multiple Airlines
dom. 2/85:42 pm
STL
-
IND
1 stop15h 01m
Multiple Airlines
Deal found 1/25$190
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
jue. 2/267:27 pm
IND
-
STL
1 stop12h 24m
Multiple Airlines
sáb. 2/2812:36 pm
STL
-
IND
1 stop18h 56m
Multiple Airlines
Deal found 1/27$192
This Kiwi.com deal was found by Cheapflights users on 1/26. 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.
vie. 2/61:44 pm
IND
-
STL
1 stop26h 02m
Multiple Airlines
lun. 2/95:42 pm
STL
-
IND
1 stop15h 01m
Multiple Airlines
Deal found 1/26$199
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/22:12 pm
IND
-
STL
1 stop10h 21m
Multiple Airlines
mar. 2/35:42 pm
STL
-
IND
1 stop15h 01m
Multiple Airlines
Deal found 1/25$205
This Kiwi.com deal was found by Cheapflights users on 1/26. 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.
vie. 2/61:44 pm
IND
-
STL
1 stop26h 02m
Frontier
lun. 2/98:22 pm
STL
-
IND
2 stops23h 06m
Frontier
Deal found 1/26$214
This Kiwi.com deal was found by Cheapflights users on 1/24. 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.
sáb. 2/215:45 am
IND
-
STL
2 stops50h 06m
Multiple Airlines
lun. 2/233:49 pm
STL
-
IND
1 stop15h 43m
Multiple Airlines
Deal found 1/24$216

Find 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 enero 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$152
(Kiwi.com)

One-way from

$60
(Trip.com)

Popular in

September

Cheapest in

November

Average price

$386
Provider with most accurate pricing for Indianapolis-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Indianapolis-Lambert-St Louis flights.
Search Deals
From Indianapolis to Lambert-St Louis
Search Deals
One-way flight from Indianapolis to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($35 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 enero 27, 2026.
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

mar. 2/24

9:13 pm-10:27 pm

1 stop26h 14m

Lambert-St Louis

mar. 3/3

3:49 pm-12:28 pm

1 stop19h 39m

$152

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

mar. 2/24

9:13 pm-10:27 pm

1 stop26h 14m

Lambert-St Louis

mar. 3/3

3:49 pm-8:32 am

1 stop15h 43m

$156

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

jue. 2/26

7:27 pm-6:51 am

1 stop12h 24m

Lambert-St Louis

sáb. 2/28

8:17 pm-3:54 pm

2 stops18h 37m

$173

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

jue. 2/26

7:27 pm-6:51 am

1 stop12h 24m

Lambert-St Louis

sáb. 2/28

12:36 pm-8:32 am

1 stop18h 56m

$192

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

vie. 2/6

1:44 pm-2:46 pm

1 stop26h 02m

Lambert-St Louis

lun. 2/9

5:42 pm-9:43 am

1 stop15h 01m

$199

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

vie. 2/6

1:44 pm-2:46 pm

1 stop26h 02m

Lambert-St Louis

lun. 2/9

8:22 pm-8:28 pm

2 stops23h 06m

$214

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

sáb. 2/21

5:45 am-6:51 am

2 stops50h 06m

Lambert-St Louis

lun. 2/23

3:49 pm-8:32 am

1 stop15h 43m

$216

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

sáb. 2/21

3:40 pm-8:43 pm

1 stop6h 03m

Lambert-St Louis

sáb. 2/28

10:14 am-2:57 pm

1 stop3h 43m

$255

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

mar. 2/24

10:30 am-6:45 pm

2 stops9h 15m

Lambert-St Louis

mar. 3/3

11:35 am-8:10 pm

2 stops7h 35m

$265

IndianapolisSt. Louis

IND - STL

INDSTL

Indianapolis

sáb. 2/21

1:45 pm-8:00 pm

2 stops7h 15m

Lambert-St Louis

lun. 2/23

2:55 pm-11:05 pm

2 stops7h 10m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 21 results
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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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Indianapolis-St. Louis flight deals on Cheapflights vs. FlightHub >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 Expedia the most. Expedia 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 December is currently the most expensive (average of $280). 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.

How much does it cost to fly round-trip from Indianapolis to St. Louis?

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 enero 27, 2026.
Peruse reviews from past customers who have flown with 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.
American Airlines
7.2
Good
11,197 reviews

Food

6.4

Overall

7.2

Crew

8.0

Comfort

7.2

Boarding

7.5

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.
American Airlines
7.2
Good
11,197 reviews
American Airlines
7.2
Good
11,197 reviews

Food

6.4

Overall

7.2

Crew

8.0

Comfort

7.2

Boarding

7.5

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.

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 $152, Frontier can have you in St. Louis from Indianapolis in 26h 14m. Indianapolis and St. Louis are separated by a distance of 228 mi.

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

    Flying on American Airlines is currently your cheapest option to St. Louis, with prices starting at $196. American Airlines is 46% 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 December is currently the most expensive (average of $280). 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
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

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Alternative routes for Indianapolis to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Indianapolis to St. Louis

Discover the top airline 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 enero 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$196Average$407FlexibilityNo cancel feeOn-time71%

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