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$80+ 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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IND
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
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 diciembre 12, 2025.

This Delta deal was found by Cheapflights users on 12/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/256:05 amSTL - IND
1 stop5h 04mDelta
lun. 12/294:45 pmIND - STL
1 stop6h 31mDelta
Deal found 12/11$320
This United Airlines deal was found by Cheapflights users on 12/10. 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.
vie. 12/263:10 pmSTL - IND
1 stop5h 49mUnited Airlines
sáb. 1/37:45 pmIND - STL
1 stop3h 58mUnited Airlines
Deal found 12/10$377
This United Airlines deal was found by Cheapflights users on 12/10. 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.
jue. 12/259:55 amSTL - IND
1 stop4h 27mUnited Airlines
lun. 12/2912:36 pmIND - STL
1 stop4h 51mUnited Airlines
Deal found 12/10$380
This Kiwi.com deal was found by Cheapflights users on 12/11. 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. 12/2510:42 amSTL - IND
2 stops19h 31mMultiple Airlines
lun. 12/291:09 pmIND - STL
1 stop21h 31mMultiple Airlines
Deal found 12/11$396
This Booking.com deal was found by Cheapflights users on 12/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/224:27 pmSTL - IND
1 stop22h 44mFrontier
mar. 12/238:35 pmIND - STL
1 stop14h 27mFrontier
Deal found 12/9$407
This Southwest deal was found by Cheapflights users on 12/10. 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.
vie. 12/263:05 pmSTL - IND
2 stops7h 25mSouthwest
sáb. 1/36:50 amIND - STL
1 stop3h 10mSouthwest
Deal found 12/10$413
This Kiwi.com deal was found by Cheapflights users on 12/10. 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. 12/127:43 pmSTL - IND
2 stops14h 41mFrontier
sáb. 1/103:38 pmIND - STL
1 stop7h 55mFrontier
Deal found 12/10$416
This American Airlines deal was found by Cheapflights users on 12/10. 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.
vie. 12/264:53 pmSTL - IND
1 stop4h 36mAmerican Airlines
lun. 12/291:48 pmIND - STL
1 stop6h 43mAmerican Airlines
Deal found 12/10$417
This Kiwi.com deal was found by Cheapflights users on 12/11. 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.
mié. 12/177:43 pmSTL - IND
2 stops36h 42mMultiple Airlines
mié. 12/3112:43 pmIND - STL
1 stop23h 13mMultiple Airlines
Deal found 12/11$434
This Southwest deal was found by Cheapflights users on 12/10. 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.
vie. 12/263:05 pmSTL - IND
2 stops7h 25mSouthwest
lun. 12/296:50 pmIND - STL
1 stop5h 40mSouthwest
Deal found 12/10$453

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 diciembre 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$163
(Kiwi.com)

One-way from

$80
(Kiwi.com)

Popular in

November

Cheapest in

April

Average price

$276
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. 11% potential increase in price ($49 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 diciembre 12, 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

jue. 1/8

5:11 pm-9:43 am

1 stop15h 32m

Indianapolis

jue. 1/15

2:36 pm-10:34 pm

1 stop8h 58m

$163

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

dom. 1/25

5:42 pm-9:43 am

1 stop15h 01m

Indianapolis

dom. 2/1

6:55 am-6:51 am

2 stops24h 56m

$226

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

mié. 2/18

5:00 pm-12:09 am

1 stop6h 09m

Indianapolis

sáb. 2/21

6:26 pm-11:36 pm

1 stop6h 10m

$240

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

mié. 1/7

6:35 am-11:30 am

1 stop3h 55m

Indianapolis

mié. 1/14

7:05 am-10:43 am

1 stop4h 38m

$257

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

vie. 2/20

3:49 pm-9:33 am

1 stop16h 44m

Indianapolis

lun. 2/23

3:12 pm-11:59 pm

1 stop9h 47m

$259

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

mié. 2/18

11:35 am-10:05 pm

2 stops9h 30m

Indianapolis

sáb. 2/21

1:45 pm-8:00 pm

2 stops7h 15m

$261

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

jue. 1/8

6:05 am-3:05 pm

2 stops8h 00m

Indianapolis

jue. 1/15

5:05 am-2:10 pm

2 stops10h 05m

$295

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

vie. 2/20

10:35 am-10:25 pm

2 stops10h 50m

Indianapolis

lun. 2/23

12:25 pm-10:40 pm

2 stops11h 15m

$314

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

jue. 12/25

9:08 am-1:40 pm

1 stop3h 32m

Indianapolis

lun. 12/29

5:32 pm-11:55 pm

1 stop7h 23m

$320

St. LouisIndianapolis

STL - IND

STLIND

Lambert-St Louis

jue. 12/25

6:05 am-12:09 pm

1 stop5h 04m

Indianapolis

lun. 12/29

4:45 pm-10:16 pm

1 stop6h 31m

$320

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 20 results
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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 December.
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, 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 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 diciembre 12, 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 diciembre 12, 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
11,050 reviews

Boarding

7.5

Food

6.5

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
American Airlines
7.2
Good
11,050 reviews
American Airlines
7.2
Good
11,050 reviews

Boarding

7.5

Food

6.5

Entertainment

6.9

Crew

8.0

Comfort

7.2

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit

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?

    Delta can get you from St. Louis to Indianapolis in just under 6h 09m. Your travel time can differ by up to . The distance between St. Louis and Indianapolis is about 228 mi.

  • 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, 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 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
Plainfield
Franklin
Carmel
Crawfordsville
Bloomington
Speedway

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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 diciembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$226Average$294FlexibilityNo cancel feeOn-time71%

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