$59+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
IND — STL
Jun 15 — Jun 221
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 May 16, 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 May 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/14. 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.
Sun 6/1412:24 pm
CVG
- STL
1 stop21h 28m
Frontier
Wed 6/175:06 pm
STL
- CVG
1 stop17h 08m
Frontier
Deal found 5/14![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 7/312:14 pm
IND
- STL
1 stop21h 38m
Frontier
Tue 7/76:33 pm
STL
- IND
1 stop15h 32m
Frontier
Deal found 5/11![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Thu 6/412:12 pm
CVG
- STL
1 stop6h 21m
Frontier
Fri 6/55:27 pm
STL
- CVG
1 stop17h 14m
Frontier
Deal found 5/13![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 6/912:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Tue 6/166:31 pm
STL
- CVG
1 stop16h 18m
Frontier
Deal found 5/11![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Fri 6/1212:54 pm
CVG
- STL
1 stop20h 58m
Frontier
Fri 6/195:06 pm
STL
- CVG
1 stop17h 41m
Frontier
Deal found 5/13![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 6/212:12 pm
CVG
- STL
1 stop21h 43m
Frontier
Thu 6/46:33 pm
STL
- CVG
1 stop16h 08m
Frontier
Deal found 5/13![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Wed 6/102:20 pm
CVG
- STL
2 stops43h 32m
Frontier
Wed 6/175:06 pm
STL
- CVG
1 stop17h 08m
Frontier
Deal found 5/13![Frontier logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 6/912:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Mon 6/155:06 pm
STL
- CVG
2 stops19h 19m
Frontier
Deal found 5/13![Frontier logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 6/102:20 pm
CVG
- STL
2 stops28h 10m
Frontier
Mon 6/155:06 pm
STL
- CVG
1 stop17h 08m
Frontier
Deal found 5/15![Frontier logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Wed 6/312:46 pm
CVG
- STL
2 stops12h 11m
Frontier
Thu 6/46:33 pm
STL
- CVG
1 stop16h 08m
Frontier
Deal found 5/11![Frontier logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 5/12. 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.
Wed 8/512:20 pm
IND
- STL
2 stops12h 39m
Frontier
Sun 8/96:33 pm
STL
- IND
1 stop15h 32m
Frontier
Deal found 5/12![Frontier logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 6/98:51 pm
IND
- STL
2 stops12h 56m
Frontier
Tue 6/166:31 pm
STL
- IND
1 stop15h 48m
Frontier
Deal found 5/11![Frontier logo]()
$196
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 May 16, 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 May 16, 2026.
This Booking.com deal was found by Cheapflights users on 5/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/58:53 pm
IND
- STL
1 stop23h 30m
Frontier
Sun 8/94:09 pm
STL
- IND
1 stop17h 19m
Frontier
Deal found 5/12![Frontier logo]()
$242
This Delta deal was found by Cheapflights users on 5/11. 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.
Fri 6/125:11 pm
MDW
- STL
1 stop6h 45m
Delta
Tue 6/1611:13 am
STL
- MDW
1 stop7h 05m
Delta
Deal found 5/11![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 5/15. 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 6/55:20 pm
MDW
- STL
1 stop5h 50m
Southwest
Wed 6/249:30 pm
STL
- MDW
Nonstop1h 05m
Southwest
Deal found 5/15![Southwest logo]()
$258
This United Airlines deal was found by Cheapflights users on 5/15. 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 9/1710:25 am
ORD
- STL
Nonstop1h 32m
United Airlines
Sun 9/205:30 pm
STL
- ORD
Nonstop1h 31m
United Airlines
Deal found 5/15![United Airlines logo]()
$264
This American Airlines deal was found by Cheapflights users on 5/14. 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.
Wed 6/106:49 pm
FWA
- STL
1 stop6h 27m
American Airlines
Mon 6/158:14 pm
STL
- FWA
1 stop3h 33m
American Airlines
Deal found 5/14![American Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 6/261:29 pm
ORD
- STL
1 stop19h 23m
Frontier
Sun 6/286:31 pm
STL
- ORD
1 stop25h 19m
Frontier
Deal found 5/15![Frontier logo]()
$256
This Delta deal was found by Cheapflights users on 5/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/132:35 pm
ORD
- STL
1 stop6h 04m
Delta
Tue 6/161:59 pm
STL
- ORD
1 stop4h 30m
Delta
Deal found 5/14![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 5/15. 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 9/178:55 pm
MDW
- STL
Nonstop1h 10m
Southwest
Sun 9/207:30 pm
STL
- MDW
Nonstop1h 05m
Southwest
Deal found 5/15![Southwest logo]()
$264
This United Airlines deal was found by Cheapflights users on 5/12. 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 6/42:20 pm
ORD
- STL
Nonstop1h 26m
United Airlines
Sun 6/78:10 am
STL
- ORD
Nonstop1h 35m
United Airlines
Deal found 5/12![United Airlines logo]()
$275
This Delta deal was found by Cheapflights users on 5/12. 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.
Tue 6/98:52 am
ORD
- STL
2 stops7h 54m
Delta
Wed 6/106:21 am
STL
- ORD
2 stops6h 43m
Delta
Deal found 5/12![Delta logo]()
$265
This Southwest deal was found by Cheapflights users on 5/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/89:35 pm
MDW
- STL
Nonstop1h 15m
Southwest
Mon 6/1512:50 pm
STL
- MDW
1 stop4h 15m
Southwest
Deal found 5/11![Southwest logo]()
$274
This American Airlines deal was found by Cheapflights users on 5/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/265:39 am
AZO
- STL
2 stops7h 20m
American Airlines
Sat 5/306:00 am
STL
- AZO
1 stop4h 22m
American Airlines
Deal found 5/11![American Airlines logo]()
$314
This Delta deal was found by Cheapflights users on 5/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:30 am
AZO
- STL
1 stop5h 01m
Delta
Wed 7/156:04 pm
STL
- AZO
1 stop4h 47m
Delta
Deal found 5/13![Delta logo]()
$278
This United Airlines deal was found by Cheapflights users on 5/13. 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.
Fri 6/53:29 pm
FWA
- STL
1 stop4h 44m
United Airlines
Sun 6/71:13 pm
STL
- FWA
1 stop3h 38m
United Airlines
Deal found 5/13![United Airlines logo]()
$306
This American Airlines deal was found by Cheapflights users on 5/13. 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.
Thu 6/188:42 pm
IND
- STL
1 stop4h 34m
American Airlines
Sun 6/218:14 pm
STL
- IND
1 stop3h 38m
American Airlines
Deal found 5/13![American Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 5/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/255:25 am
AZO
- STL
1 stop5h 07m
Delta
Sun 6/286:30 am
STL
- AZO
1 stop3h 32m
Delta
Deal found 5/14![Delta logo]()
$278
This United Airlines deal was found by Cheapflights users on 5/15. 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 5/3011:41 am
SBN
- STL
1 stop3h 42m
United Airlines
Wed 6/36:00 am
STL
- SBN
1 stop4h 06m
United Airlines
Deal found 5/15![United Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 5/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:00 am
CVG
- STL
2 stops8h 50m
Southwest
Thu 7/94:35 pm
STL
- CVG
2 stops6h 50m
Southwest
Deal found 5/12![Southwest logo]()
$325
This American Airlines deal was found by Cheapflights users on 5/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:56 pm
SDF
- STL
1 stop5h 58m
American Airlines
Mon 6/16:12 pm
STL
- SDF
1 stop5h 16m
American Airlines
Deal found 5/11![American Airlines logo]()
$333
This Delta deal was found by Cheapflights users on 5/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/167:10 am
SBN
- STL
1 stop4h 18m
Delta
Sat 7/185:36 pm
STL
- SBN
1 stop3h 53m
Delta
Deal found 5/14![Delta logo]()
$279
This United Airlines deal was found by Cheapflights users on 5/13. 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.
Tue 6/210:40 am
ORD
- STL
Nonstop1h 31m
United Airlines
Wed 6/36:00 am
STL
- ORD
Nonstop1h 30m
United Airlines
Deal found 5/13![United Airlines logo]()
$313
This Southwest deal was found by Cheapflights users on 5/15. 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 7/610:20 am
MDW
- STL
2 stops4h 30m
Southwest
Tue 7/710:15 am
STL
- MDW
1 stop4h 55m
Southwest
Deal found 5/15![Southwest logo]()
$326
This Delta deal was found by Cheapflights users on 5/12. 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.
Sat 6/133:12 pm
SBN
- STL
1 stop6h 27m
Delta
Tue 6/231:59 pm
STL
- SBN
1 stop5h 51m
Delta
Deal found 5/12![Delta logo]()
$279
This American Airlines deal was found by Cheapflights users on 5/12. 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.
Thu 6/45:10 am
IND
- STL
1 stop4h 22m
American Airlines
Sun 6/75:14 am
STL
- IND
1 stop4h 24m
American Airlines
Deal found 5/12![American Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 5/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3011:40 am
FWA
- STL
1 stop5h 06m
United Airlines
Wed 6/310:25 am
STL
- FWA
1 stop3h 29m
United Airlines
Deal found 5/14![United Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 5/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/275:55 pm
IND
- STL
1 stop5h 20m
Southwest
Sat 7/48:35 am
STL
- IND
2 stops9h 45m
Southwest
Deal found 5/12![Southwest logo]()
$326
This Delta deal was found by Cheapflights users on 5/12. 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.
Fri 6/123:10 pm
SBN
- STL
1 stop6h 29m
Delta
Sat 6/205:36 pm
STL
- SBN
1 stop3h 50m
Delta
Deal found 5/12![Delta logo]()
$279
This United Airlines deal was found by Cheapflights users on 5/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/261:16 pm
FWA
- STL
1 stop5h 57m
United Airlines
Sat 5/307:05 pm
STL
- FWA
1 stop3h 39m
United Airlines
Deal found 5/11![United Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 5/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/1312:50 pm
IND
- STL
1 stop8h 10m
Southwest
Sat 6/203:45 pm
STL
- IND
2 stops6h 55m
Southwest
Deal found 5/14![Southwest logo]()
$326
This Delta deal was found by Cheapflights users on 5/12. 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.
Thu 9/178:00 am
SBN
- STL
1 stop6h 17m
Delta
Sun 9/206:45 am
STL
- SBN
1 stop6h 01m
Delta
Deal found 5/12![Delta logo]()
$289
Last-minute flights from Indiana to St. LouisDiscover last-minute flight deals from Indiana to St. Louis. Data last updated May 16, 2026 and is based on user searches.
Discover last-minute flight deals from Indiana to St. Louis. Data last updated May 16, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 6/212:12 pm
CVG
- STL
1 stop21h 43m
Frontier
Thu 6/46:33 pm
STL
- CVG
1 stop16h 08m
Frontier
Deal found 5/13![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Wed 6/312:46 pm
CVG
- STL
2 stops12h 11m
Frontier
Thu 6/46:33 pm
STL
- CVG
1 stop16h 08m
Frontier
Deal found 5/11![Frontier logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Wed 6/312:46 pm
CVG
- STL
2 stops12h 11m
Frontier
Sat 6/65:27 pm
STL
- CVG
1 stop16h 37m
Frontier
Deal found 5/13![Frontier logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Thu 6/412:12 pm
CVG
- STL
1 stop6h 21m
Frontier
Fri 6/55:27 pm
STL
- CVG
1 stop17h 14m
Frontier
Deal found 5/13![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 6/912:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Tue 6/166:31 pm
STL
- CVG
1 stop16h 18m
Frontier
Deal found 5/11![Frontier logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 6/912:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Mon 6/155:06 pm
STL
- CVG
2 stops19h 19m
Frontier
Deal found 5/13![Frontier logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 6/98:51 pm
IND
- STL
2 stops12h 56m
Frontier
Tue 6/166:31 pm
STL
- IND
1 stop15h 48m
Frontier
Deal found 5/11![Frontier logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Wed 6/102:20 pm
CVG
- STL
2 stops43h 32m
Frontier
Wed 6/175:06 pm
STL
- CVG
1 stop17h 08m
Frontier
Deal found 5/13![Frontier logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 6/102:20 pm
CVG
- STL
2 stops28h 10m
Frontier
Mon 6/155:06 pm
STL
- CVG
1 stop17h 08m
Frontier
Deal found 5/15![Frontier logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 6/118:00 am
IND
- STL
2 stops25h 52m
Multiple Airlines
Thu 6/186:31 pm
STL
- IND
1 stop15h 48m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Fri 6/1212:54 pm
CVG
- STL
1 stop20h 58m
Frontier
Fri 6/195:06 pm
STL
- CVG
1 stop17h 41m
Frontier
Deal found 5/13![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 5/14. 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.
Sun 6/1412:24 pm
CVG
- STL
1 stop21h 28m
Frontier
Wed 6/175:06 pm
STL
- CVG
1 stop17h 08m
Frontier
Deal found 5/14![Frontier logo]()
$123
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 May 16, 2026.
Search for one-way flight options from Indiana to St. Louis. Find affordable one-way fares based on user searches. Data last updated May 16, 2026.
This Southwest deal was found by Cheapflights users on 5/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/28:15 am
MDW
- STL
Nonstop1h 15m
Southwest
Deal found 5/12![Southwest logo]()
$59
This Trip.com deal was found by Cheapflights users on 5/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/412:12 pm
CVG
- STL
1 stop6h 21m
Frontier
Deal found 5/13![Frontier logo]()
$59
This United Airlines deal was found by Cheapflights users on 5/13. 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 6/1710:40 am
ORD
- STL
Nonstop1h 31m
United Airlines
Deal found 5/13![United Airlines logo]()
$59
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 6/512:14 pm
IND
- STL
1 stop21h 41m
Frontier
Deal found 5/15![Frontier logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 6/1612:24 pm
CVG
- STL
1 stop21h 28m
Frontier
Deal found 5/13![Frontier logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 6/1912:54 pm
CVG
- STL
1 stop20h 58m
Frontier
Deal found 5/15![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 5/12. 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.
Fri 6/1212:14 pm
IND
- STL
1 stop21h 38m
Frontier
Deal found 5/12![Frontier logo]()
$65
This Southwest deal was found by Cheapflights users on 5/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/169:10 am
MDW
- STL
1 stop5h 40m
Southwest
Deal found 5/12![Southwest logo]()
$69
This Southwest deal was found by Cheapflights users on 5/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/210:30 am
ORD
- STL
1 stop7h 35m
Southwest
Deal found 5/12![Southwest logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 5/13. 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 8/116:00 am
MDW
- STL
1 stop26h 57m
Frontier
Deal found 5/13![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 5/13. 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.
Wed 8/51:50 pm
ORD
- STL
1 stop27h 47m
Frontier
Deal found 5/13![Frontier logo]()
$70
This Delta deal was found by Cheapflights users on 5/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/179:17 am
MDW
- STL
1 stop3h 52m
Delta
Deal found 5/13![Delta logo]()
$79
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 May 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $123 (Kiwi.com) |
One-way from | $59 (Southwest) |
Popular in | September |
Cheapest in | November |
Average price | $499 |
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 May 16, 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
IndianapolisSt. Louis
IND - STL
INDSTL
Indianapolis
Wed 8/5
8:53 pm-7:23 pm
1 stop23h 30m
Lambert-St Louis
Sun 8/9
4:09 pm-10:28 am
1 stop17h 19m
$242
ChicagoSt. Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Fri 6/26
1:29 pm-8:52 am
1 stop19h 23m
Lambert-St Louis
Sun 6/28
6:31 pm-7:50 pm
1 stop25h 19m
$256
ChicagoSt. Louis
MDW - STL
MDWSTL
Chicago Midway
Fri 6/12
5:11 pm-11:56 pm
1 stop6h 45m
Lambert-St Louis
Tue 6/16
11:13 am-6:18 pm
1 stop7h 05m
$257
ChicagoSt. Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Sat 6/13
2:35 pm-8:39 pm
1 stop6h 04m
Lambert-St Louis
Tue 6/16
1:59 pm-6:29 pm
1 stop4h 30m
$257
ChicagoSt. Louis
MDW - STL
MDWSTL
Chicago Midway
Fri 6/5
5:20 pm-11:10 pm
1 stop5h 50m
Lambert-St Louis
Wed 6/24
9:30 pm-10:35 pm
Nonstop1h 05m
$258
ChicagoSt. Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Thu 9/17
10:25 am-11:57 am
Nonstop1h 32m
Lambert-St Louis
Sun 9/20
5:30 pm-7:01 pm
Nonstop1h 31m
$264
Quickest round-trip
ChicagoSt. Louis
MDW - STL
MDWSTL
Chicago Midway
Thu 9/17
8:55 pm-10:05 pm
Nonstop1h 10m
Lambert-St Louis
Sun 9/20
7:30 pm-8:35 pm
Nonstop1h 05m
$264
ChicagoSt. Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Tue 6/9
8:52 am-4:46 pm
2 stops7h 54m
Lambert-St Louis
Wed 6/10
6:21 am-1:04 pm
2 stops6h 43m
$265
ChicagoSt. Louis
MDW - STL
MDWSTL
Chicago Midway
Mon 6/8
9:35 pm-10:50 pm
Nonstop1h 15m
Lambert-St Louis
Mon 6/15
12:50 pm-5:05 pm
1 stop4h 15m
$274
ChicagoSt. Louis
ORD - STL
ORDSTL
Chicago O'Hare Intl
Thu 6/4
2:20 pm-3:46 pm
Nonstop1h 26m
Lambert-St Louis
Sun 6/7
8:10 am-9:45 am
Nonstop1h 35m
$275
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
MDW-STL
ORD-STL
FWA-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
MDW-STL
ORD-STL
What is the cheapest month to book a flight from Indiana to St. Louis?
Currently, September 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.
How much does it cost to fly round-trip from Indiana to St. Louis?
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
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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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 May 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 May 16, 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 May 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$218 | Average$258 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$221 | Average$271 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$228 | Average$353 | FlexibilityNo cancel fee | On-time69% |