$54+ Cheap flights from St. Louis to Indianapolis (STL - IND)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
STL — IND
Oct 10 — Oct 171
One-way
1 adult, Economy
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Find cheap flights from St. Louis to Indianapolis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from St. Louis to Indianapolis
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Cheapest flights from St. Louis to IndianapolisExplore 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 September 10, 2026.
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 September 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:35 pm -
1 stop23h 29m
Thu 10/159:06 pm -
2 stops21h 34m
Deal found 9/9![Frontier logo]()
$153
This Frontier deal was found by Cheapflights users on 9/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2912:14 pm -
1 stop6h 48m
Sat 10/3111:25 am -
1 stop12h 51m
Deal found 9/7![Frontier logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/78:10 pm -
1 stop14h 51m
Wed 10/147:59 pm -
2 stops28h 14m
Deal found 9/9![Frontier logo]()
$249
This Southwest deal was found by Cheapflights users on 9/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/72:25 pm -
1 stop7h 15m
Wed 10/145:15 pm -
1 stop3h 45m
Deal found 9/9![Southwest logo]()
$257
This Southwest deal was found by Cheapflights users on 9/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/278:30 am -
2 stops7h 55m
Thu 10/296:45 pm -
1 stop6h 05m
Deal found 9/9![Southwest logo]()
$262
This CheapOair deal was found by Cheapflights users on 9/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:19 pm -
1 stop16h 06m
Mon 10/1211:53 am -
1 stop12h 20m
Deal found 9/7![Frontier logo]()
$280
This Southwest deal was found by Cheapflights users on 9/8. 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 10/138:30 am -
2 stops7h 55m
Sat 10/173:20 pm -
1 stop6h 05m
Deal found 9/8![Southwest logo]()
$307
This Delta deal was found by Cheapflights users on 9/8. 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.
Thu 10/156:47 am -
1 stop3h 45m
Sun 10/186:41 am -
1 stop4h 08m
Deal found 9/8![Delta logo]()
$312
This Southwest deal was found by Cheapflights users on 9/6. 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 10/61:45 pm -
1 stop7h 10m
Tue 10/136:50 am -
1 stop3h 25m
Deal found 9/6![Southwest logo]()
$319
Best flights from St. Louis to IndianapolisDiscover carefully curated flight deals from St. Louis to Indianapolis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from St. Louis to Indianapolis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:35 pm -
1 stop23h 29m
Thu 10/159:06 pm -
2 stops21h 34m
Deal found 9/9![Frontier logo]()
$153
This Southwest deal was found by Cheapflights users on 9/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/278:10 am -
1 stop4h 45m
Thu 10/292:40 pm -
1 stop6h 05m
Deal found 9/9![Southwest logo]()
$257
This Delta deal was found by Cheapflights users on 9/8. 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.
Thu 10/156:47 am -
1 stop3h 45m
Sun 10/186:41 am -
1 stop4h 08m
Deal found 9/8![Delta logo]()
$312
This deal was found by Cheapflights users on 9/9. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/179:40 am -
1 stop4h 20m
Thu 11/199:10 am -
1 stop4h 00m
Deal found 9/9![United Airlines logo]()
$372
This Southwest deal was found by Cheapflights users on 9/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/178:25 am -
2 stops6h 20m
Thu 11/192:10 pm -
2 stops6h 15m
Deal found 9/9![Southwest logo]()
$267
This Southwest deal was found by Cheapflights users on 9/7. 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.
Thu 10/225:25 am -
2 stops7h 45m
Sun 10/257:25 am -
1 stop3h 05m
Deal found 9/7![Southwest logo]()
$338
This Southwest deal was found by Cheapflights users on 9/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/94:30 pm -
2 stops7h 15m
Thu 10/156:20 am -
2 stops7h 25m
Deal found 9/9![Southwest logo]()
$338
This Southwest deal was found by Cheapflights users on 9/6. 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.
Fri 10/235:25 am -
2 stops7h 45m
Sun 10/255:00 pm -
2 stops7h 55m
Deal found 9/6![Southwest logo]()
$343
This Southwest deal was found by Cheapflights users on 9/5. 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.
Fri 10/165:25 am -
2 stops7h 45m
Mon 10/193:00 pm -
1 stop5h 05m
Deal found 9/5![Southwest logo]()
$348
This Southwest deal was found by Cheapflights users on 9/8. 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.
Fri 10/165:25 am -
2 stops7h 45m
Sun 10/188:05 pm -
1 stop4h 50m
Deal found 9/8![Southwest logo]()
$362
Last-minute flights from St. Louis to IndianapolisDiscover last-minute flight deals from St. Louis to Indianapolis. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Indianapolis. Data last updated September 10, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:19 pm -
1 stop16h 06m
Mon 10/1211:53 am -
1 stop12h 20m
Deal found 9/7![Frontier logo]()
$280
This Southwest deal was found by Cheapflights users on 9/6. 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 10/61:45 pm -
1 stop7h 10m
Tue 10/136:50 am -
1 stop3h 25m
Deal found 9/6![Southwest logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/78:10 pm -
1 stop14h 51m
Wed 10/147:59 pm -
2 stops28h 14m
Deal found 9/9![Frontier logo]()
$249
This Southwest deal was found by Cheapflights users on 9/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/72:25 pm -
1 stop7h 15m
Wed 10/145:15 pm -
1 stop3h 45m
Deal found 9/9![Southwest logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:35 pm -
1 stop23h 29m
Thu 10/159:06 pm -
2 stops21h 34m
Deal found 9/9![Frontier logo]()
$153
This Southwest deal was found by Cheapflights users on 9/8. 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 10/138:30 am -
2 stops7h 55m
Sat 10/173:20 pm -
1 stop6h 05m
Deal found 9/8![Southwest logo]()
$307
This Delta deal was found by Cheapflights users on 9/8. 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.
Thu 10/156:47 am -
1 stop3h 45m
Sun 10/186:41 am -
1 stop4h 08m
Deal found 9/8![Delta logo]()
$312
This Southwest deal was found by Cheapflights users on 9/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/278:30 am -
2 stops7h 55m
Thu 10/296:45 pm -
1 stop6h 05m
Deal found 9/9![Southwest logo]()
$262
This Frontier deal was found by Cheapflights users on 9/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2912:14 pm -
1 stop6h 48m
Sat 10/3111:25 am -
1 stop12h 51m
Deal found 9/7![Frontier logo]()
$220
One-way flights from St. Louis to IndianapolisSearch for one-way flight options from St. Louis to Indianapolis. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from St. Louis to Indianapolis. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 10/96:35 pm -
1 stop23h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$54
This CheapOair deal was found by Cheapflights users on 9/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:42 pm -
1 stop15h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$111
This Delta deal was found by Cheapflights users on 9/7. 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.
Fri 11/276:00 am -
1 stop5h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$123
This Expedia deal was found by Cheapflights users on 9/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/112:14 pm -
1 stop6h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$124
This Southwest deal was found by Cheapflights users on 9/8. 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.
Sat 11/73:55 pm -
1 stop6h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Southwest logo]()
$129
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:00 am -
1 stop3h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![United Airlines logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:35 pm -
2 stops40h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$149
This Southwest deal was found by Cheapflights users on 9/5. 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.
Thu 10/225:10 am -
1 stop7h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Southwest logo]()
$160
This Southwest deal was found by Cheapflights users on 9/7. 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.
Fri 11/274:40 pm -
2 stops6h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Southwest logo]()
$165
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 September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $153 (Kiwi.com) |
One-way from | $54 (Kiwi.com) |
Popular in | March |
Cheapest in | September |
Average price | $268 |
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 7,457,451 searches. Data last updated September 10, 2026.
Use the filters below to find and compare flights from St. Louis to Indianapolis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisIndianapolis
STL Lambert-St Louis - IND Indianapolis
STLIND
Lambert-St Louis
Sat 10/10
7:42 pm-12:01 pm
1 stop15h 19m
Indianapolis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$111
St. LouisIndianapolis
STL Lambert-St Louis - IND Indianapolis
STLIND
Lambert-St Louis
Sun 11/1
12:14 pm-8:02 pm
1 stop6h 48m
Indianapolis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$124
St. LouisIndianapolis
STL Lambert-St Louis - IND Indianapolis
STLIND
Lambert-St Louis
Sat 11/7
3:55 pm-11:25 pm
1 stop6h 30m
Indianapolis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$129
St. LouisIndianapolis
STL Lambert-St Louis - IND Indianapolis
STLIND
Lambert-St Louis
Fri 10/23
6:35 pm-12:01 pm
2 stops40h 26m
Indianapolis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$149
St. LouisIndianapolis
STL Lambert-St Louis - IND Indianapolis
STLIND
Lambert-St Louis
Fri 10/9
6:35 pm-7:04 pm
1 stop23h 29m
Indianapolis
Thu 10/15
9:06 pm-5:40 pm
2 stops21h 34m
$153
St. LouisIndianapolis
STL Lambert-St Louis - IND Indianapolis
STLIND
Lambert-St Louis
Thu 10/22
5:10 am-1:25 pm
1 stop7h 15m
Indianapolis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$160
St. LouisIndianapolis
STL Lambert-St Louis - IND Indianapolis
STLIND
Lambert-St Louis
Fri 11/27
4:40 pm-12:15 am
2 stops6h 35m
Indianapolis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$165
St. LouisIndianapolis
STL Lambert-St Louis - IND Indianapolis
STLIND
Lambert-St Louis
Tue 9/22
7:00 am-3:40 pm
1 stop7h 40m
Indianapolis
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$224
St. LouisIndianapolis
STL Lambert-St Louis - IND Indianapolis
STLIND
Lambert-St Louis
Tue 10/27
8:10 am-1:55 pm
1 stop4h 45m
Indianapolis
Thu 10/29
2:40 pm-7:45 pm
1 stop6h 05m
$257
St. LouisIndianapolis
STL Lambert-St Louis - IND Indianapolis
STLIND
Lambert-St Louis
Tue 11/17
8:25 am-3:45 pm
2 stops6h 20m
Indianapolis
Thu 11/19
2:10 pm-7:25 pm
2 stops6h 15m
$267
Showing 1-10 of 18 resultsSorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
STL-IND
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.
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 September 10, 2026.
See what other customers who have flown with United 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.
Entertainment
7.1
Boarding
7.7
Comfort
7.3
Crew
8.1
Overall
7.4
Food
6.7
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Entertainment
7.1
Boarding
7.7
Comfort
7.3
Crew
8.1
Overall
7.4
Food
6.7
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
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.
Traveling to a place near Indianapolis?
Book flights to Indianapolis if you plan to visit one of these locationsTerre Haute
Greenwood
Plainfield
Fishers
Muncie
Kokomo
Westfield
Franklin
Mooresville
Crawfordsville
Anderson
Carmel
Noblesville
Bloomington
Speedway
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St. Louis and Indianapolis flights
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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 7,457,451 searches. Data last updated September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$268 | Average$489 | FlexibilityNo cancel fee | On-time69% |