$62+ Cheap flights from Indiana to St. Louis (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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
IND — STL
Aug 13 — Aug 201
Round-trip
1 adult, Economy
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Find cheap flights from Indiana to St. Louis 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
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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 Indiana to St. Louis
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Cheapest flights from Indiana to St. LouisExplore the most affordable flight options available from Indiana to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 14, 2026.
Explore the most affordable flight options available from Indiana to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/412:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Sat 8/84:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 7/14![Frontier logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/412:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Thu 8/66:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 7/14![Frontier logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Tue 8/412:18 pm
CVG
- STL
1 stop21h 39m
Frontier
Tue 8/116:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 7/10![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Mon 8/2412:26 pm
CVG
- STL
1 stop5h 56m
Frontier
Mon 8/316:17 pm
STL
- CVG
1 stop16h 04m
Frontier
Deal found 7/10![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/2812:26 pm
CVG
- STL
1 stop5h 56m
Frontier
Fri 9/46:17 pm
STL
- CVG
1 stop16h 04m
Frontier
Deal found 7/14![Frontier logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Fri 7/3112:53 pm
CVG
- STL
1 stop21h 04m
Frontier
Sun 8/26:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 7/10![Frontier logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 8/2112:26 pm
CVG
- STL
1 stop5h 56m
Frontier
Mon 8/246:17 pm
STL
- CVG
1 stop16h 04m
Frontier
Deal found 7/9![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Sun 8/2312:26 pm
CVG
- STL
1 stop5h 56m
Frontier
Fri 8/286:17 pm
STL
- CVG
1 stop16h 04m
Frontier
Deal found 7/10![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 7/12. 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 10/1512:48 pm
CVG
- STL
1 stop21h 52m
Frontier
Mon 10/1910:35 am
STL
- CVG
1 stop24h 08m
Frontier
Deal found 7/12![Frontier logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 7/2812:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Sat 8/14:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 7/13![Frontier logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 7/11. 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.
Fri 8/2112:26 pm
CVG
- STL
1 stop5h 56m
Frontier
Tue 8/255:27 pm
STL
- CVG
2 stops40h 54m
Frontier
Deal found 7/11![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 7/9. 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.
Mon 8/1012:20 pm
IND
- STL
2 stops12h 39m
Frontier
Tue 8/116:34 pm
STL
- IND
1 stop15h 51m
Frontier
Deal found 7/9![Frontier logo]()
$210
Best flights from Indiana to St. LouisDiscover carefully curated flight deals from Indiana to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 14, 2026.
Discover carefully curated flight deals from Indiana to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/12. 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 8/109:23 pm
CVG
- STL
2 stops21h 14m
Frontier
Sun 8/166:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 7/12![Frontier logo]()
$177
This Southwest deal was found by Cheapflights users on 7/10. 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.
Tue 8/257:40 am
IND
- STL
1 stop4h 40m
Southwest
Wed 8/265:55 am
STL
- IND
1 stop6h 15m
Southwest
Deal found 7/10![Southwest logo]()
$221
This Delta deal was found by Cheapflights users on 7/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:10 am
CVG
- STL
1 stop4h 27m
Delta
Tue 8/42:10 pm
STL
- CVG
1 stop4h 44m
Delta
Deal found 7/10![Delta logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 7/12. 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 8/97:30 am
IND
- STL
2 stops26h 27m
Multiple Airlines
Sun 8/166:34 pm
STL
- IND
1 stop15h 51m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$234
This United Airlines deal was found by Cheapflights users on 7/10. 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.
Wed 9/1611:17 am
CVG
- STL
1 stop5h 21m
United Airlines
Fri 9/185:30 pm
STL
- CVG
1 stop4h 02m
United Airlines
Deal found 7/10![United Airlines logo]()
$235
This American Airlines deal was found by Cheapflights users on 7/13. 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.
Wed 8/127:00 am
DAY
- STL
1 stop6h 54m
American Airlines
Tue 8/184:54 pm
STL
- DAY
1 stop4h 42m
American Airlines
Deal found 7/13![American Airlines logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 8/2112:26 pm
CVG
- STL
1 stop5h 56m
Frontier
Mon 8/246:17 pm
STL
- CVG
2 stops18h 30m
Frontier
Deal found 7/9![Frontier logo]()
$197
This Southwest deal was found by Cheapflights users on 7/9. 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 8/115:50 am
IND
- STL
1 stop5h 15m
Southwest
Tue 8/114:45 pm
STL
- IND
1 stop3h 15m
Southwest
Deal found 7/9![Southwest logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/48:36 pm
CVG
- STL
2 stops13h 21m
Frontier
Thu 8/66:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 7/14![Frontier logo]()
$202
This Southwest deal was found by Cheapflights users on 7/9. 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.
Mon 8/106:45 am
IND
- STL
1 stop4h 45m
Southwest
Tue 8/116:30 am
STL
- IND
1 stop4h 50m
Southwest
Deal found 7/9![Southwest logo]()
$221
This Delta deal was found by Cheapflights users on 7/11. 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.
Wed 9/1610:32 am
SDF
- STL
1 stop3h 34m
Delta
Thu 9/176:40 am
STL
- SDF
1 stop6h 27m
Delta
Deal found 7/11![Delta logo]()
$261
This United Airlines deal was found by Cheapflights users on 7/9. 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 9/411:38 am
SBN
- STL
1 stop5h 00m
United Airlines
Mon 9/77:25 am
STL
- SBN
1 stop4h 05m
United Airlines
Deal found 7/9![United Airlines logo]()
$279
This Southwest deal was found by Cheapflights users on 7/13. 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 8/67:20 am
IND
- STL
1 stop5h 30m
Southwest
Mon 8/106:15 pm
STL
- IND
1 stop3h 20m
Southwest
Deal found 7/13![Southwest logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 7/288:36 pm
CVG
- STL
2 stops13h 21m
Frontier
Sat 8/14:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 7/13![Frontier logo]()
$237
This American Airlines deal was found by Cheapflights users on 7/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:50 pm
FWA
- STL
1 stop5h 37m
American Airlines
Mon 9/285:01 am
STL
- FWA
1 stop4h 15m
American Airlines
Deal found 7/9![American Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 7/12. 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.
Wed 8/126:00 am
DAY
- STL
1 stop6h 46m
Delta
Tue 8/185:23 pm
STL
- DAY
1 stop5h 33m
Delta
Deal found 7/12![Delta logo]()
$271
This United Airlines deal was found by Cheapflights users on 7/13. 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.
Wed 8/127:39 am
SBN
- STL
1 stop5h 23m
United Airlines
Wed 8/195:30 pm
STL
- SBN
1 stop3h 30m
United Airlines
Deal found 7/13![United Airlines logo]()
$279
This American Airlines deal was found by Cheapflights users on 7/12. 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.
Sun 8/95:22 am
FWA
- STL
1 stop4h 02m
American Airlines
Sat 8/155:00 am
STL
- FWA
1 stop4h 17m
American Airlines
Deal found 7/12![American Airlines logo]()
$289
This Southwest deal was found by Cheapflights users on 7/10. 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.
Fri 8/2811:10 am
CVG
- STL
2 stops9h 45m
Southwest
Sat 9/55:45 am
STL
- CVG
2 stops7h 05m
Southwest
Deal found 7/10![Southwest logo]()
$245
This Delta deal was found by Cheapflights users on 7/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/263:04 pm
AZO
- STL
1 stop3h 34m
Delta
Mon 8/315:30 pm
STL
- AZO
1 stop5h 22m
Delta
Deal found 7/9![Delta logo]()
$278
This United Airlines deal was found by Cheapflights users on 7/12. 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 8/77:45 am
SBN
- STL
1 stop5h 26m
United Airlines
Thu 8/139:30 am
STL
- SBN
1 stop3h 58m
United Airlines
Deal found 7/12![United Airlines logo]()
$279
This Southwest deal was found by Cheapflights users on 7/9. 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 8/215:25 pm
CVG
- STL
2 stops5h 40m
Southwest
Mon 8/242:45 pm
STL
- CVG
2 stops6h 35m
Southwest
Deal found 7/9![Southwest logo]()
$245
This Kiwi.com deal was found by Cheapflights users on 7/12. 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 8/97:38 pm
IND
- STL
1 stop29h 21m
Frontier
Sun 8/166:34 pm
STL
- IND
1 stop15h 51m
Frontier
Deal found 7/12![Frontier logo]()
$270
This American Airlines deal was found by Cheapflights users on 7/14. 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 7/315:45 am
AZO
- STL
1 stop3h 46m
American Airlines
Sun 8/25:58 pm
STL
- AZO
1 stop5h 08m
American Airlines
Deal found 7/14![American Airlines logo]()
$308
This United Airlines deal was found by Cheapflights users on 7/12. 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.
Thu 10/295:30 am
DAY
- STL
1 stop6h 11m
United Airlines
Tue 11/37:33 am
STL
- DAY
1 stop4h 31m
United Airlines
Deal found 7/12![United Airlines logo]()
$280
This Delta deal was found by Cheapflights users on 7/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/143:04 pm
AZO
- STL
2 stops9h 54m
Delta
Sun 8/166:30 am
STL
- AZO
1 stop3h 31m
Delta
Deal found 7/10![Delta logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 7/12. 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 8/910:30 pm
FWA
- STL
1 stop20h 45m
Multiple Airlines
Sat 8/154:57 pm
STL
- FWA
2 stops15h 58m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$396
This Southwest deal was found by Cheapflights users on 7/10. 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.
Sat 8/295:50 am
CVG
- STL
2 stops8h 35m
Southwest
Sun 9/66:45 am
STL
- CVG
2 stops6h 15m
Southwest
Deal found 7/10![Southwest logo]()
$260
This United Airlines deal was found by Cheapflights users on 7/10. 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.
Sat 8/86:15 pm
DAY
- STL
1 stop4h 11m
United Airlines
Fri 8/145:30 pm
STL
- DAY
1 stop5h 29m
United Airlines
Deal found 7/10![United Airlines logo]()
$289
This Southwest deal was found by Cheapflights users on 7/13. 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 12/212:55 pm
SDF
- STL
1 stop7h 30m
Southwest
Thu 12/37:40 am
STL
- SDF
1 stop3h 35m
Southwest
Deal found 7/13![Southwest logo]()
$261
Last-minute flights from Indiana to St. LouisDiscover last-minute flight deals from Indiana to St. Louis. Data last updated July 14, 2026 and is based on user searches.
Discover last-minute flight deals from Indiana to St. Louis. Data last updated July 14, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 7/2812:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Sat 8/14:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 7/13![Frontier logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Fri 7/3112:53 pm
CVG
- STL
1 stop21h 04m
Frontier
Sun 8/26:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 7/10![Frontier logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/412:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Sat 8/84:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 7/14![Frontier logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/412:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Thu 8/66:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 7/14![Frontier logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Tue 8/412:18 pm
CVG
- STL
1 stop21h 39m
Frontier
Tue 8/116:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 7/10![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 7/12. 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 8/69:23 pm
CVG
- STL
2 stops36h 34m
Frontier
Sun 8/166:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 7/12![Frontier logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 7/9. 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.
Mon 8/1012:20 pm
IND
- STL
2 stops12h 39m
Frontier
Tue 8/116:34 pm
STL
- IND
1 stop15h 51m
Frontier
Deal found 7/9![Frontier logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 8/2112:26 pm
CVG
- STL
1 stop5h 56m
Frontier
Mon 8/246:17 pm
STL
- CVG
1 stop16h 04m
Frontier
Deal found 7/9![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 7/11. 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.
Fri 8/2112:26 pm
CVG
- STL
1 stop5h 56m
Frontier
Tue 8/255:27 pm
STL
- CVG
2 stops40h 54m
Frontier
Deal found 7/11![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Sun 8/2312:26 pm
CVG
- STL
1 stop5h 56m
Frontier
Fri 8/286:17 pm
STL
- CVG
1 stop16h 04m
Frontier
Deal found 7/10![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Mon 8/2412:26 pm
CVG
- STL
1 stop5h 56m
Frontier
Mon 8/316:17 pm
STL
- CVG
1 stop16h 04m
Frontier
Deal found 7/10![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/2812:26 pm
CVG
- STL
1 stop5h 56m
Frontier
Fri 9/46:17 pm
STL
- CVG
1 stop16h 04m
Frontier
Deal found 7/14![Frontier logo]()
$130
One-way flights from Indiana to St. LouisSearch for one-way flight options from Indiana to St. Louis. Find affordable one-way fares based on user searches. Data last updated July 14, 2026.
Search for one-way flight options from Indiana to St. Louis. Find affordable one-way fares based on user searches. Data last updated July 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 8/2312:26 pm
CVG
- STL
1 stop5h 56m
Frontier
Deal found 7/13![Frontier logo]()
$62
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/1312:18 pm
CVG
- STL
1 stop21h 39m
Frontier
Deal found 7/14![Frontier logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 7/11. 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.
Tue 9/1512:39 pm
IND
- STL
1 stop22h 01m
Frontier
Deal found 7/11![Frontier logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 7/9. 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.
Thu 9/1712:48 pm
CVG
- STL
1 stop21h 52m
Frontier
Deal found 7/9![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 9/1312:48 pm
CVG
- STL
1 stop21h 52m
Frontier
Deal found 7/13![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 7/3112:53 pm
CVG
- STL
1 stop21h 04m
Frontier
Deal found 7/14![Frontier logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Mon 8/177:52 pm
CVG
- STL
1 stop21h 24m
Frontier
Deal found 7/10![Frontier logo]()
$95
This Frontier deal was found by Cheapflights users on 7/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:10 pm
IND
- STL
1 stop5h 49m
Frontier
Deal found 7/11![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 7/12. 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 7/3012:18 pm
CVG
- STL
1 stop21h 39m
Frontier
Deal found 7/12![Frontier logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/192:20 pm
CVG
- STL
2 stops28h 02m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$111
This Delta deal was found by Cheapflights users on 7/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:24 am
IND
- STL
1 stop3h 42m
Delta
Deal found 7/9![Delta logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Wed 9/92:46 pm
ORD
- STL
2 stops18h 54m
Frontier
Deal found 7/10![Frontier logo]()
$112
Find flight deals from Indiana to St. Louis
Keep the following information in mind while searching for Indiana to St. Louis flight deals. Data was last updated July 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $122 (Kiwi.com) |
One-way from | $62 (Kiwi.com) |
Popular in | February |
Cheapest in | November |
Average price | $336 |
Cheapflights Fare Finder
Customize your flight search to find flights from Indiana 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 July 14, 2026.
Use the filters below to find and compare flights from Indiana to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Mon 8/10
9:23 pm-5:37 pm
2 stops21h 14m
Lambert-St Louis
Sun 8/16
6:34 pm-11:48 am
1 stop16h 14m
$177
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Fri 8/21
12:26 pm-5:22 pm
1 stop5h 56m
Lambert-St Louis
Mon 8/24
6:17 pm-1:47 pm
2 stops18h 30m
$197
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Tue 8/4
8:36 pm-8:57 am
2 stops13h 21m
Lambert-St Louis
Thu 8/6
6:34 pm-11:48 am
1 stop16h 14m
$202
IndianapolisSt. Louis
IND - STL
INDSTL
Indianapolis
Tue 8/25
7:40 am-11:20 am
1 stop4h 40m
Lambert-St Louis
Wed 8/26
5:55 am-1:10 pm
1 stop6h 15m
$221
IndianapolisSt. Louis
IND - STL
INDSTL
Indianapolis
Tue 8/11
5:50 am-10:05 am
1 stop5h 15m
Lambert-St Louis
Tue 8/11
4:45 pm-9:00 pm
1 stop3h 15m
$221
IndianapolisSt. Louis
IND - STL
INDSTL
Indianapolis
Mon 8/10
6:45 am-10:30 am
1 stop4h 45m
Lambert-St Louis
Tue 8/11
6:30 am-12:20 pm
1 stop4h 50m
$221
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Tue 8/4
6:10 am-9:37 am
1 stop4h 27m
Lambert-St Louis
Tue 8/4
2:10 pm-7:54 pm
1 stop4h 44m
$229
IndianapolisSt. Louis
IND - STL
INDSTL
Indianapolis
Thu 8/6
7:20 am-11:50 am
1 stop5h 30m
Lambert-St Louis
Mon 8/10
6:15 pm-10:35 pm
1 stop3h 20m
$233
IndianapolisSt. Louis
IND - STL
INDSTL
Indianapolis
Sun 8/9
7:30 am-8:57 am
2 stops26h 27m
Lambert-St Louis
Sun 8/16
6:34 pm-11:25 am
1 stop15h 51m
$234
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Wed 9/16
11:17 am-3:38 pm
1 stop5h 21m
Lambert-St Louis
Fri 9/18
5:30 pm-10:32 pm
1 stop4h 02m
$235
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Indiana to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Indiana with our price prediction graph.
CVG-STL
IND-STL
DAY-STL
SDF-STL
SBN-STL
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 Indiana to St. Louis
USIN-STL
CVG-STL
IND-STL
DAY-STL
SDF-STL
What is the cheapest month to book a flight from Indiana to St. Louis?
Currently, November is the cheapest month in which you can book a flight from Indiana to St. Louis (average of $156). Flying from Indiana to St. Louis in April is currently the most expensive (average of $286). 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.
Related info for your journey
Find useful and relevant information for your journey from Indiana to St. Louis. 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 St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
O'Fallon
Fenton
Swansea
Fairview Heights
Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
Alton
Farmington
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Alternative routes for Indiana to St. Louis
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Complete your trip
Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.
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Indiana and St. Louis flights
Browse other Indiana and St. Louis flight options. Last updated on July 14, 2026.
Popular flight searches
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Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 14, 2026.
Indiana to St. Louis flights
Consider these flights traveling from Indiana to St. Louis.
Top 3 airlines flying from Indiana to St. Louis
Discover the top 3 airlines that operate flights from Indiana 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 July 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$218 | Average$288 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$221 | Average$281 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$248 | Average$338 | FlexibilityNo cancel fee | On-time69% |