$143+ Cheap flights from Indiana to St. Louis (STL)
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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
IND — STL
Dec 10 — Dec 171
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
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 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 November 10, 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 November 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/142:29 pm -
1 stop10h 43m
Wed 12/1612:02 pm -
1 stop23h 04m
Deal found 11/6![Frontier logo]()
$191
This Frontier deal was found by Cheapflights users on 11/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/511:04 am -
1 stop14h 08m
Mon 12/76:20 pm -
1 stop14h 49m
Deal found 11/9![Frontier logo]()
$243
This United Airlines deal was found by Cheapflights users on 11/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/97:35 am -
1 stop5h 47m
Tue 12/159:40 am -
1 stop5h 21m
Deal found 11/8![United Airlines logo]()
$267
This Kiwi.com deal was found by Cheapflights users on 11/7. 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 12/114:41 pm -
1 stop19h 16m
Mon 12/147:54 pm -
1 stop18h 52m
Deal found 11/7![Frontier logo]()
$273
This Delta deal was found by Cheapflights users on 11/9. 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 12/93:20 pm -
1 stop6h 12m
Sat 12/126:32 am -
1 stop3h 52m
Deal found 11/9![Delta logo]()
$295
This Southwest deal was found by Cheapflights users on 11/9. 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 12/92:10 pm -
2 stops6h 15m
Sat 12/126:35 am -
1 stop7h 40m
Deal found 11/9![Southwest logo]()
$300
This Southwest deal was found by Cheapflights users on 11/9. 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.
Sat 12/51:20 pm -
2 stops7h 45m
Mon 12/72:35 pm -
1 stop6h 55m
Deal found 11/9![Southwest logo]()
$315
This Delta deal was found by Cheapflights users on 11/9. 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 12/38:20 am -
1 stop6h 10m
Sun 12/610:14 am -
1 stop3h 42m
Deal found 11/9![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 11/9. 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 12/96:00 am -
1 stop6h 29m
Wed 12/162:17 pm -
1 stop5h 32m
Deal found 11/9![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 11/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/251:09 pm -
1 stop3h 34m
Sun 11/295:00 am -
1 stop3h 50m
Deal found 11/6![United Airlines logo]()
$334
This United Airlines deal was found by Cheapflights users on 11/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/274:30 pm -
1 stop3h 53m
Sat 11/286:50 pm -
1 stop3h 57m
Deal found 11/5![United Airlines logo]()
$335
This United Airlines deal was found by Cheapflights users on 11/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/211:09 pm -
1 stop4h 50m
Wed 11/255:00 am -
1 stop3h 50m
Deal found 11/6![United Airlines logo]()
$349
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 November 10, 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 November 10, 2026.
This Frontier deal was found by Cheapflights users on 11/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/511:04 am -
1 stop14h 08m
Mon 12/76:20 pm -
1 stop14h 49m
Deal found 11/9![Frontier logo]()
$243
This Delta deal was found by Cheapflights users on 11/9. 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 12/93:20 pm -
1 stop6h 12m
Sat 12/126:32 am -
1 stop3h 52m
Deal found 11/9![Delta logo]()
$295
This Southwest deal was found by Cheapflights users on 11/9. 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 12/92:10 pm -
2 stops6h 15m
Sat 12/126:35 am -
1 stop7h 40m
Deal found 11/9![Southwest logo]()
$300
This United Airlines deal was found by Cheapflights users on 11/9. 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.
Wed 12/96:00 pm -
1 stop5h 59m
Wed 12/169:40 am -
1 stop6h 18m
Deal found 11/9![United Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 11/9. 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 11/205:26 am -
1 stop6h 08m
Sun 11/2211:14 am -
1 stop6h 33m
Deal found 11/9![American Airlines logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 11/7. 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 12/114:41 pm -
1 stop19h 16m
Mon 12/147:54 pm -
1 stop18h 52m
Deal found 11/7![Frontier logo]()
$273
This Southwest deal was found by Cheapflights users on 11/9. 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.
Sat 12/51:20 pm -
2 stops7h 45m
Mon 12/72:35 pm -
1 stop6h 55m
Deal found 11/9![Southwest logo]()
$315
This Delta deal was found by Cheapflights users on 11/9. 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 12/96:00 am -
1 stop6h 29m
Wed 12/162:17 pm -
1 stop5h 32m
Deal found 11/9![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 11/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/251:09 pm -
1 stop3h 34m
Sun 11/295:00 am -
1 stop3h 50m
Deal found 11/6![United Airlines logo]()
$334
This Southwest deal was found by Cheapflights users on 11/6. 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.
Mon 12/142:10 pm -
2 stops6h 15m
Wed 12/168:25 am -
2 stops6h 20m
Deal found 11/6![Southwest logo]()
$320
This KAYAK deal was found by Cheapflights users on 11/5. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/143:20 pm -
1 stop6h 12m
Wed 12/166:05 pm -
1 stop5h 08m
Deal found 11/5![Delta logo]()
$335
This United Airlines deal was found by Cheapflights users on 11/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/274:30 pm -
1 stop3h 53m
Sat 11/286:50 pm -
1 stop3h 57m
Deal found 11/5![United Airlines logo]()
$335
This Southwest deal was found by Cheapflights users on 11/9. 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 1/117:25 am -
1 stop6h 55m
Thu 1/148:30 am -
1 stop6h 10m
Deal found 11/9![Southwest logo]()
$325
This United Airlines deal was found by Cheapflights users on 11/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/211:09 pm -
1 stop4h 50m
Wed 11/255:00 am -
1 stop3h 50m
Deal found 11/6![United Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 11/7. 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 12/111:35 pm -
2 stops8h 25m
Mon 12/145:30 am -
2 stops9h 15m
Deal found 11/7![Southwest logo]()
$345
This United Airlines deal was found by Cheapflights users on 11/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/194:42 pm -
1 stop5h 55m
Sat 1/231:17 pm -
1 stop5h 40m
Deal found 11/7![United Airlines logo]()
$357
This United Airlines deal was found by Cheapflights users on 11/9. 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 2/51:28 pm -
1 stop5h 22m
Tue 2/97:29 am -
1 stop6h 37m
Deal found 11/9![United Airlines logo]()
$357
This United Airlines deal was found by Cheapflights users on 11/9. 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.
Tue 11/245:25 am -
1 stop4h 30m
Sat 11/288:30 am -
1 stop6h 43m
Deal found 11/9![United Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 11/7. 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.
Thu 12/33:36 pm -
2 stops9h 29m
Sun 12/610:14 am -
1 stop3h 42m
Deal found 11/7![Delta logo]()
$499
This Delta deal was found by Cheapflights users on 11/9. 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.
Mon 11/238:20 am -
2 stops9h 11m
Thu 11/2610:20 am -
1 stop5h 38m
Deal found 11/9![Delta logo]()
$514
This United Airlines deal was found by Cheapflights users on 11/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/29:08 am -
1 stop4h 14m
Sat 12/56:55 pm -
1 stop3h 26m
Deal found 11/5![United Airlines logo]()
$409
This American Airlines deal was found by Cheapflights users on 11/9. 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.
Wed 12/911:37 am -
2 stops7h 56m
Wed 12/168:24 pm -
1 stop3h 21m
Deal found 11/9![American Airlines logo]()
$819
This United Airlines deal was found by Cheapflights users on 11/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:30 am -
1 stop4h 02m
Wed 11/253:20 pm -
1 stop5h 54m
Deal found 11/7![United Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 11/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/213:27 pm -
2 stops9h 29m
Wed 11/256:00 am -
2 stops7h 47m
Deal found 11/6![Delta logo]()
$653
This United Airlines deal was found by Cheapflights users on 11/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/3011:29 am -
1 stop5h 14m
Tue 12/110:50 am -
1 stop5h 08m
Deal found 11/6![United Airlines logo]()
$557
Last-minute flights from Indiana to St. LouisDiscover last-minute flight deals from Indiana to St. Louis. Data last updated November 10, 2026 and is based on user searches.
Discover last-minute flight deals from Indiana to St. Louis. Data last updated November 10, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 11/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/211:09 pm -
1 stop4h 50m
Wed 11/255:00 am -
1 stop3h 50m
Deal found 11/6![United Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 11/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/251:09 pm -
1 stop3h 34m
Sun 11/295:00 am -
1 stop3h 50m
Deal found 11/6![United Airlines logo]()
$334
This United Airlines deal was found by Cheapflights users on 11/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/274:30 pm -
1 stop3h 53m
Sat 11/286:50 pm -
1 stop3h 57m
Deal found 11/5![United Airlines logo]()
$335
This Delta deal was found by Cheapflights users on 11/9. 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 12/38:20 am -
1 stop6h 10m
Sun 12/610:14 am -
1 stop3h 42m
Deal found 11/9![Delta logo]()
$319
This Frontier deal was found by Cheapflights users on 11/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/511:04 am -
1 stop14h 08m
Mon 12/76:20 pm -
1 stop14h 49m
Deal found 11/9![Frontier logo]()
$243
This Southwest deal was found by Cheapflights users on 11/9. 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.
Sat 12/51:20 pm -
2 stops7h 45m
Mon 12/72:35 pm -
1 stop6h 55m
Deal found 11/9![Southwest logo]()
$315
This United Airlines deal was found by Cheapflights users on 11/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/97:35 am -
1 stop5h 47m
Tue 12/159:40 am -
1 stop5h 21m
Deal found 11/8![United Airlines logo]()
$267
This Delta deal was found by Cheapflights users on 11/9. 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 12/93:20 pm -
1 stop6h 12m
Sat 12/126:32 am -
1 stop3h 52m
Deal found 11/9![Delta logo]()
$295
This Southwest deal was found by Cheapflights users on 11/9. 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 12/92:10 pm -
2 stops6h 15m
Sat 12/126:35 am -
1 stop7h 40m
Deal found 11/9![Southwest logo]()
$300
This Delta deal was found by Cheapflights users on 11/9. 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 12/96:00 am -
1 stop6h 29m
Wed 12/162:17 pm -
1 stop5h 32m
Deal found 11/9![Delta logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 11/7. 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 12/114:41 pm -
1 stop19h 16m
Mon 12/147:54 pm -
1 stop18h 52m
Deal found 11/7![Frontier logo]()
$273
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/142:29 pm -
1 stop10h 43m
Wed 12/1612:02 pm -
1 stop23h 04m
Deal found 11/6![Frontier logo]()
$191
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 November 10, 2026.
Search for one-way flight options from Indiana to St. Louis. Find affordable one-way fares based on user searches. Data last updated November 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/234:30 pm -
1 stop18h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Frontier logo]()
$143
This Frontier deal was found by Cheapflights users on 11/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/216:38 pm -
1 stop7h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Frontier logo]()
$146
This United Airlines deal was found by Cheapflights users on 11/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/131:37 pm -
1 stop3h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![United Airlines logo]()
$148
This Southwest deal was found by Cheapflights users on 11/7. 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.
Sat 2/134:15 pm -
2 stops7h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Southwest logo]()
$153
This Frontier deal was found by Cheapflights users on 11/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:15 pm -
1 stop6h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Frontier logo]()
$165
This Southwest deal was found by Cheapflights users on 11/6. 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.
Mon 12/2112:25 pm -
2 stops7h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Southwest logo]()
$168
This KAYAK deal was found by Cheapflights users on 11/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/83:20 pm -
1 stop6h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Delta logo]()
$178
This Southwest deal was found by Cheapflights users on 11/9. 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 12/82:10 pm -
2 stops6h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Southwest logo]()
$188
This United Airlines deal was found by Cheapflights users on 11/9. 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 4/99:20 am -
1 stop4h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![United Airlines logo]()
$189
This Frontier deal was found by Cheapflights users on 11/7. 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.
Sun 11/1511:25 am -
1 stop12h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Frontier logo]()
$191
This Southwest deal was found by Cheapflights users on 11/9. 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 4/912:40 pm -
2 stops7h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Southwest logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2310:56 am -
3 stops27h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Multiple Airlines logo]()
$201
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 November 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $191 (Kiwi.com) |
One-way from | $143 (Kiwi.com) |
Popular in | February |
Cheapest in | January |
Average price | $668 |
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 7,457,451 searches. Data last updated November 10, 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 Indianapolis - STL Lambert-St Louis
INDSTL
Indianapolis
Mon 12/21
6:38 pm-12:41 am
1 stop7h 03m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$146
IndianapolisSt. Louis
IND Indianapolis - STL Lambert-St Louis
INDSTL
Indianapolis
Sat 2/13
1:37 pm-4:19 pm
1 stop3h 42m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$148
IndianapolisSt. Louis
IND Indianapolis - STL Lambert-St Louis
INDSTL
Indianapolis
Sat 2/13
4:15 pm-10:35 pm
2 stops7h 20m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$153
IndianapolisSt. Louis
IND Indianapolis - STL Lambert-St Louis
INDSTL
Indianapolis
Tue 2/23
5:30 am-11:50 am
2 stops7h 20m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$153
IndianapolisSt. Louis
IND Indianapolis - STL Lambert-St Louis
INDSTL
Indianapolis
Mon 12/21
12:25 pm-7:10 pm
2 stops7h 45m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$168
IndianapolisSt. Louis
IND Indianapolis - STL Lambert-St Louis
INDSTL
Indianapolis
Tue 12/8
3:20 pm-8:32 pm
1 stop6h 12m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$178
IndianapolisSt. Louis
IND Indianapolis - STL Lambert-St Louis
INDSTL
Indianapolis
Fri 4/9
9:20 am-12:20 pm
1 stop4h 00m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$189
IndianapolisSt. Louis
IND Indianapolis - STL Lambert-St Louis
INDSTL
Indianapolis
Fri 4/9
12:40 pm-6:50 pm
2 stops7h 10m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$194
IndianapolisSt. Louis
IND Indianapolis - STL Lambert-St Louis
INDSTL
Indianapolis
Fri 2/12
4:30 pm-4:58 pm
2 stops25h 28m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$238
IndianapolisSt. Louis
IND Indianapolis - STL Lambert-St Louis
INDSTL
Indianapolis
Sat 12/5
11:04 am-12:12 am
1 stop14h 08m
Lambert-St Louis
Mon 12/7
6:20 pm-10:09 am
1 stop14h 49m
$243
Showing 1-10 of 44 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.
IND-STL
SBN-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
IND-STL
SBN-STL
FWA-STL
What is the cheapest month to book a flight from Indiana to St. Louis?
Currently, January is the cheapest month in which you can book a flight from Indiana to St. Louis (average of $268). Flying from Indiana to St. Louis in October is currently the most expensive (average of $585). 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 locationsFairview Heights
O'Fallon
Fenton
Eureka
Wentzville
Maryland Heights
Chesterfield
Swansea
Edwardsville
Glencoe
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Indiana and St. Louis flights
Browse other Indiana and St. Louis flight options. Last updated on November 10, 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 November 10, 2026.
Indiana to St. Louis flights
Consider these flights traveling from Indiana to St. Louis.
Top 2 airlines flying from Indiana to St. Louis
Discover the top 2 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 7,457,451 searches. Data last updated November 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$221 | Average$311 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$248 | Average$313 | FlexibilityNo cancel fee | On-time69% |