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$68+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IND
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
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 January 27, 2026.

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.
Wed 2/258:17 pm
STL
-
IND
1 stop21h 14m
Frontier
Wed 3/41:23 pm
IND
-
STL
1 stop10h 04m
Frontier
Deal found 1/26$153
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.
Mon 2/233:49 pm
STL
-
IND
1 stop15h 43m
Multiple Airlines
Mon 3/26:10 pm
IND
-
STL
1 stop29h 17m
Multiple Airlines
Deal found 1/26$164
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.
Wed 2/258:17 pm
STL
-
IND
1 stop21h 14m
Multiple Airlines
Wed 3/48:18 pm
IND
-
STL
2 stops35h 44m
Multiple Airlines
Deal found 1/26$178
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.
Sat 2/218:17 pm
STL
-
IND
2 stops35h 53m
Frontier
Tue 3/39:23 pm
IND
-
STL
1 stop26h 04m
Frontier
Deal found 1/26$184
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.
Mon 2/95:42 pm
STL
-
IND
1 stop15h 01m
Multiple Airlines
Fri 2/137:41 pm
IND
-
STL
1 stop12h 10m
Multiple Airlines
Deal found 1/25$217
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.
Mon 2/95:42 pm
STL
-
IND
1 stop25h 46m
Frontier
Thu 2/127:27 pm
IND
-
STL
1 stop12h 24m
Frontier
Deal found 1/26$226
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.
Mon 2/95:42 pm
STL
-
IND
1 stop15h 01m
Multiple Airlines
Thu 2/128:52 pm
IND
-
STL
2 stops34h 59m
Multiple Airlines
Deal found 1/26$234
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.
Tue 2/103:49 pm
STL
-
IND
1 stop19h 39m
Frontier
Sat 2/148:58 pm
IND
-
STL
2 stops34h 53m
Frontier
Deal found 1/27$246
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/252:15 pm
STL
-
IND
2 stops6h 50m
Southwest
Wed 3/47:00 am
IND
-
STL
2 stops6h 45m
Southwest
Deal found 1/26$265
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.
Tue 2/103:49 pm
STL
-
IND
1 stop16h 54m
Multiple Airlines
Sat 2/148:58 pm
IND
-
STL
2 stops34h 53m
Multiple Airlines
Deal found 1/26$266

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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$153
(Kiwi.com)

One-way from

$68
(Kiwi.com)

Popular in

November

Cheapest in

April

Average price

$501
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. 8% potential increase in price ($33 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($28 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 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 January 27, 2026.
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

Mon 2/23

8:22 pm-11:25 pm

2 stops26h 03m

Indianapolis

Mon 3/2

6:10 pm-10:27 pm

1 stop29h 17m

$169

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Sat 2/21

8:17 pm-6:34 pm

1 stop21h 17m

Indianapolis

Tue 3/3

9:23 pm-10:27 pm

1 stop26h 04m

$204

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Mon 2/9

5:42 pm-8:28 pm

1 stop25h 46m

Indianapolis

Thu 2/12

7:27 pm-6:51 am

1 stop12h 24m

$226

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Tue 2/10

3:49 pm-12:28 pm

1 stop19h 39m

Indianapolis

Sat 2/14

8:58 pm-6:51 am

2 stops34h 53m

$246

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Wed 2/25

2:15 pm-10:05 pm

2 stops6h 50m

Indianapolis

Wed 3/4

7:00 am-12:45 pm

2 stops6h 45m

$265

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Tue 2/10

3:49 pm-9:43 am

1 stop16h 54m

Indianapolis

Sat 2/14

8:58 pm-6:51 am

2 stops34h 53m

$266

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Tue 2/17

7:10 am-2:24 pm

1 stop6h 14m

Indianapolis

Thu 2/19

6:15 am-9:32 am

1 stop4h 17m

$267

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Sat 2/21

5:10 am-1:30 pm

2 stops7h 20m

Indianapolis

Tue 3/3

8:30 am-4:30 pm

2 stops9h 00m

$277

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Mon 2/23

2:55 pm-11:05 pm

2 stops7h 10m

Indianapolis

Mon 3/2

12:25 pm-8:00 pm

2 stops8h 35m

$289

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

Wed 2/11

8:17 pm-2:17 pm

2 stops17h 00m

Indianapolis

Thu 2/12

7:27 pm-6:51 am

1 stop12h 24m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

Showing 1-10 of 20 results
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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 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.

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, September is the cheapest month in which you can book a flight from St. Louis to Indianapolis (average of $161). Flying from St. Louis to Indianapolis in January is currently the most expensive (average of $295). 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.

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 January 27, 2026.
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
11,197 reviews

Food

6.4

Boarding

7.5

Overall

7.2

Comfort

7.2

Crew

8.0

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

Boarding

7.5

Overall

7.2

Comfort

7.2

Crew

8.0

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 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?

    Frontier and Southwest can get you from St. Louis to Indianapolis in just under 6h 50m. Your travel time can differ by up to 14h 27m. 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 $185. American Airlines is 52% 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, September is the cheapest month in which you can book a flight from St. Louis to Indianapolis (average of $161). Flying from St. Louis to Indianapolis in January is currently the most expensive (average of $295). 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
Muncie
Terre Haute
Fishers
Noblesville
Greenwood
Plainfield
Anderson
Kokomo
Mooresville
Franklin
Carmel
Crawfordsville
Bloomington

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for St. Louis to Indianapolis

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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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$185Average$294FlexibilityNo cancel feeOn-time71%

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