$173+ Cheap flights from South Dakota 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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — STL
Jul 31 — Aug 71
Round-trip
1 adult, Economy
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Find cheap flights from South Dakota 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 South Dakota to St. Louis
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Cheapest flights from South Dakota to St. LouisExplore the most affordable flight options available from South Dakota to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2026.
Explore the most affordable flight options available from South Dakota to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2026.
This Frontier deal was found by Cheapflights users on 6/29. 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.
Wed 7/158:08 pm
FSD
- STL
1 stop23h 15m
Frontier
Sun 7/198:08 pm
STL
- FSD
1 stop23h 15m
Frontier
Deal found 6/29![Frontier logo]()
$242
This United Airlines deal was found by Cheapflights users on 6/29. 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 7/296:51 pm
FSD
- STL
1 stop5h 06m
United Airlines
Wed 8/55:10 am
STL
- FSD
1 stop5h 13m
United Airlines
Deal found 6/29![United Airlines logo]()
$271
This American Airlines deal was found by Cheapflights users on 6/29. 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 8/186:06 pm
FSD
- STL
1 stop5h 36m
American Airlines
Sun 8/235:42 am
STL
- FSD
1 stop6h 35m
American Airlines
Deal found 6/29![American Airlines logo]()
$280
This American Airlines deal was found by Cheapflights users on 6/29. 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 10/15:55 pm
FSD
- STL
1 stop5h 48m
American Airlines
Sat 10/311:01 am
STL
- FSD
2 stops9h 44m
American Airlines
Deal found 6/29![American Airlines logo]()
$285
This American Airlines deal was found by Cheapflights users on 6/30. 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 8/135:23 pm
FSD
- STL
1 stop6h 51m
American Airlines
Mon 8/175:42 am
STL
- FSD
1 stop6h 35m
American Airlines
Deal found 6/30![American Airlines logo]()
$289
This American Airlines deal was found by Cheapflights users on 6/27. 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 8/2812:57 pm
FSD
- STL
2 stops11h 17m
American Airlines
Mon 8/315:42 am
STL
- FSD
1 stop6h 35m
American Airlines
Deal found 6/27![American Airlines logo]()
$294
This United Airlines deal was found by Cheapflights users on 6/30. 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 7/176:51 pm
FSD
- STL
1 stop5h 06m
United Airlines
Sat 7/255:59 pm
STL
- FSD
1 stop5h 32m
United Airlines
Deal found 6/30![United Airlines logo]()
$304
This American Airlines deal was found by Cheapflights users on 6/30. 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 9/244:56 pm
RAP
- STL
1 stop5h 47m
American Airlines
Sun 9/277:27 am
STL
- RAP
1 stop4h 48m
American Airlines
Deal found 6/30![American Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 6/27. 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 8/2111:22 am
RAP
- STL
1 stop4h 12m
United Airlines
Tue 9/110:53 am
STL
- RAP
2 stops8h 05m
United Airlines
Deal found 6/27![United Airlines logo]()
$314
This American Airlines deal was found by Cheapflights users on 6/28. 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 11/102:20 pm
RAP
- STL
2 stops8h 38m
American Airlines
Sat 11/141:06 pm
STL
- RAP
2 stops9h 11m
American Airlines
Deal found 6/28![American Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 7/1. 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 7/174:55 pm
RAP
- STL
1 stop6h 09m
American Airlines
Sun 7/195:32 am
STL
- RAP
1 stop5h 15m
American Airlines
Deal found 7/1![American Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 6/27. 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 8/2112:39 pm
RAP
- STL
1 stop6h 04m
American Airlines
Tue 9/16:00 am
STL
- RAP
2 stops11h 34m
American Airlines
Deal found 6/27![American Airlines logo]()
$340
Best flights from South Dakota to St. LouisDiscover carefully curated flight deals from South Dakota to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 1, 2026.
Discover carefully curated flight deals from South Dakota to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 1, 2026.
This American Airlines deal was found by Cheapflights users on 6/29. 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 10/16:41 pm
FSD
- STL
1 stop5h 46m
American Airlines
Sat 10/33:34 pm
STL
- FSD
1 stop5h 11m
American Airlines
Deal found 6/29![American Airlines logo]()
$280
This United Airlines deal was found by Cheapflights users on 6/30. 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 7/236:51 pm
FSD
- STL
1 stop5h 06m
United Airlines
Sat 7/255:59 pm
STL
- FSD
1 stop5h 32m
United Airlines
Deal found 6/30![United Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 6/30. 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 8/251:26 pm
FSD
- STL
1 stop3h 18m
Delta
Wed 8/262:10 pm
STL
- FSD
2 stops8h 41m
Delta
Deal found 6/30![Delta logo]()
$573
This American Airlines deal was found by Cheapflights users on 6/30. 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 8/135:23 pm
FSD
- STL
1 stop6h 51m
American Airlines
Mon 8/175:42 am
STL
- FSD
1 stop6h 35m
American Airlines
Deal found 6/30![American Airlines logo]()
$289
This United Airlines deal was found by Cheapflights users on 6/27. 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 8/215:58 pm
RAP
- STL
1 stop4h 42m
United Airlines
Tue 9/14:40 pm
STL
- RAP
1 stop4h 57m
United Airlines
Deal found 6/27![United Airlines logo]()
$309
This American Airlines deal was found by Cheapflights users on 6/27. 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 9/244:56 pm
RAP
- STL
1 stop5h 47m
American Airlines
Sun 9/277:27 am
STL
- RAP
1 stop4h 48m
American Airlines
Deal found 6/27![American Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 6/28. 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 8/266:39 pm
FSD
- STL
1 stop4h 20m
United Airlines
Sat 8/299:00 am
STL
- FSD
1 stop7h 23m
United Airlines
Deal found 6/28![United Airlines logo]()
$341
This United Airlines deal was found by Cheapflights users on 6/30. 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 8/258:55 am
RAP
- STL
1 stop6h 39m
United Airlines
Sat 8/299:00 am
STL
- RAP
1 stop4h 24m
United Airlines
Deal found 6/30![United Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 6/27. 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 8/281:26 pm
FSD
- STL
2 stops10h 32m
Delta
Mon 8/3111:00 am
STL
- FSD
2 stops8h 29m
Delta
Deal found 6/27![Delta logo]()
$589
This United Airlines deal was found by Cheapflights users on 6/26. 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 8/195:00 am
RAP
- STL
2 stops9h 38m
United Airlines
Wed 9/28:50 am
STL
- RAP
2 stops10h 08m
United Airlines
Deal found 6/26![United Airlines logo]()
$444
This United Airlines deal was found by Cheapflights users on 7/1. 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 9/77:47 am
FSD
- STL
1 stop7h 10m
United Airlines
Wed 9/95:30 pm
STL
- FSD
1 stop5h 42m
United Airlines
Deal found 7/1![United Airlines logo]()
$517
Last-minute flights from South Dakota to St. LouisDiscover last-minute flight deals from South Dakota to St. Louis. Data last updated July 1, 2026 and is based on user searches.
Discover last-minute flight deals from South Dakota to St. Louis. Data last updated July 1, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/27. 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 7/13:07 pm
FSD
- STL
1 stop6h 22m
United Airlines
Fri 7/35:59 pm
STL
- FSD
1 stop5h 32m
United Airlines
Deal found 6/27![United Airlines logo]()
$370
This Delta deal was found by Cheapflights users on 6/29. 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 7/105:00 am
FSD
- STL
1 stop5h 28m
Delta
Sun 7/126:21 am
STL
- FSD
1 stop6h 28m
Delta
Deal found 6/29![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 6/26. 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 7/101:35 pm
RAP
- STL
1 stop6h 51m
United Airlines
Tue 7/146:00 am
STL
- RAP
1 stop5h 24m
United Airlines
Deal found 6/26![United Airlines logo]()
$361
This Frontier deal was found by Cheapflights users on 6/29. 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.
Wed 7/158:08 pm
FSD
- STL
1 stop23h 15m
Frontier
Sun 7/198:08 pm
STL
- FSD
1 stop23h 15m
Frontier
Deal found 6/29![Frontier logo]()
$242
This United Airlines deal was found by Cheapflights users on 6/30. 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 7/176:51 pm
FSD
- STL
1 stop5h 06m
United Airlines
Sat 7/255:59 pm
STL
- FSD
1 stop5h 32m
United Airlines
Deal found 6/30![United Airlines logo]()
$304
This American Airlines deal was found by Cheapflights users on 7/1. 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 7/174:55 pm
RAP
- STL
1 stop6h 09m
American Airlines
Sun 7/195:32 am
STL
- RAP
1 stop5h 15m
American Airlines
Deal found 7/1![American Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 6/29. 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 7/275:53 pm
RAP
- STL
1 stop5h 04m
United Airlines
Mon 8/35:10 am
STL
- RAP
1 stop5h 09m
United Airlines
Deal found 6/29![United Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 6/29. 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 7/296:51 pm
FSD
- STL
1 stop5h 06m
United Airlines
Wed 8/55:10 am
STL
- FSD
1 stop5h 13m
United Airlines
Deal found 6/29![United Airlines logo]()
$271
This American Airlines deal was found by Cheapflights users on 6/30. 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 8/135:23 pm
FSD
- STL
1 stop6h 51m
American Airlines
Mon 8/175:42 am
STL
- FSD
1 stop6h 35m
American Airlines
Deal found 6/30![American Airlines logo]()
$289
This American Airlines deal was found by Cheapflights users on 6/29. 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 8/186:06 pm
FSD
- STL
1 stop5h 36m
American Airlines
Sun 8/235:42 am
STL
- FSD
1 stop6h 35m
American Airlines
Deal found 6/29![American Airlines logo]()
$280
This United Airlines deal was found by Cheapflights users on 6/30. 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 8/266:39 pm
FSD
- STL
1 stop4h 20m
United Airlines
Sat 8/299:00 am
STL
- FSD
1 stop7h 23m
United Airlines
Deal found 6/30![United Airlines logo]()
$341
This American Airlines deal was found by Cheapflights users on 6/27. 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 8/2812:57 pm
FSD
- STL
2 stops11h 17m
American Airlines
Mon 8/315:42 am
STL
- FSD
1 stop6h 35m
American Airlines
Deal found 6/27![American Airlines logo]()
$294
One-way flights from South Dakota to St. LouisSearch for one-way flight options from South Dakota to St. Louis. Find affordable one-way fares based on user searches. Data last updated July 1, 2026.
Search for one-way flight options from South Dakota to St. Louis. Find affordable one-way fares based on user searches. Data last updated July 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/30. 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 10/268:39 pm
FSD
- STL
2 stops16h 42m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 7/243:21 pm
RAP
- STL
2 stops27h 02m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 6/30. 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 10/257:34 pm
FSD
- STL
3 stops41h 47m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$250
This American Airlines deal was found by Cheapflights users on 6/28. 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.
Mon 7/205:34 pm
FSD
- STL
1 stop6h 24m
American Airlines
Deal found 6/28![American Airlines logo]()
$259
This American Airlines deal was found by Cheapflights users on 6/30. 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.
Mon 9/75:06 pm
RAP
- STL
1 stop5h 36m
American Airlines
Deal found 6/30![American Airlines logo]()
$269
This American Airlines deal was found by Cheapflights users on 6/27. 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 8/2112:39 pm
RAP
- STL
2 stops10h 35m
American Airlines
Deal found 6/27![American Airlines logo]()
$274
This United Airlines deal was found by Cheapflights users on 6/26. 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 7/229:00 am
RAP
- STL
2 stops13h 44m
United Airlines
Deal found 6/26![United Airlines logo]()
$305
This United Airlines deal was found by Cheapflights users on 6/28. 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 7/135:05 pm
FSD
- STL
1 stop6h 52m
United Airlines
Deal found 6/28![United Airlines logo]()
$318
This Delta deal was found by Cheapflights users on 6/29. 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 7/131:30 pm
FSD
- STL
2 stops10h 23m
Delta
Deal found 6/29![Delta logo]()
$323
This United Airlines deal was found by Cheapflights users on 6/28. 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 7/73:31 pm
RAP
- STL
1 stop7h 26m
United Airlines
Deal found 6/28![United Airlines logo]()
$346
This Delta deal was found by Cheapflights users on 6/29. 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 8/102:32 pm
RAP
- STL
2 stops8h 26m
Delta
Deal found 6/29![Delta logo]()
$363
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Mon 7/137:06 am
FSD
- STL
1 stop5h 35m
American Airlines
Deal found 7/1![American Airlines logo]()
$369
Find flight deals from South Dakota to St. Louis
Keep the following information in mind while searching for South Dakota to St. Louis flight deals. Data was last updated July 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $242 (Frontier) |
One-way from | $173 (Kiwi.com) |
Popular in | May |
Cheapest in | September |
Average price | $288 |
Cheapflights Fare Finder
Customize your flight search to find flights from South Dakota 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 1, 2026.
Use the filters below to find and compare flights from South Dakota to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Sioux FallsSt. Louis
FSD - STL
FSDSTL
Sioux Falls Joe Foss Field
Thu 10/1
6:41 pm-12:27 am
1 stop5h 46m
Lambert-St Louis
Sat 10/3
3:34 pm-8:45 pm
1 stop5h 11m
$280
Sioux FallsSt. Louis
FSD - STL
FSDSTL
Sioux Falls Joe Foss Field
Thu 7/23
6:51 pm-11:57 pm
1 stop5h 06m
Lambert-St Louis
Sat 7/25
5:59 pm-11:31 pm
1 stop5h 32m
$289
Sioux FallsSt. Louis
FSD - STL
FSDSTL
Sioux Falls Joe Foss Field
Thu 8/13
5:23 pm-12:14 am
1 stop6h 51m
Lambert-St Louis
Mon 8/17
5:42 am-12:17 pm
1 stop6h 35m
$289
Quickest round-trip
Rapid CitySt. Louis
RAP - STL
RAPSTL
Rapid City
Fri 8/21
5:58 pm-11:40 pm
1 stop4h 42m
Lambert-St Louis
Tue 9/1
4:40 pm-8:37 pm
1 stop4h 57m
$309
Rapid CitySt. Louis
RAP - STL
RAPSTL
Rapid City
Thu 9/24
4:56 pm-11:43 pm
1 stop5h 47m
Lambert-St Louis
Sun 9/27
7:27 am-11:15 am
1 stop4h 48m
$309
Sioux FallsSt. Louis
FSD - STL
FSDSTL
Sioux Falls Joe Foss Field
Wed 8/26
6:39 pm-10:59 pm
1 stop4h 20m
Lambert-St Louis
Sat 8/29
9:00 am-4:23 pm
1 stop7h 23m
$341
Rapid CitySt. Louis
RAP - STL
RAPSTL
Rapid City
Tue 8/25
8:55 am-4:34 pm
1 stop6h 39m
Lambert-St Louis
Sat 8/29
9:00 am-12:24 pm
1 stop4h 24m
$389
Rapid CitySt. Louis
RAP - STL
RAPSTL
Rapid City
Wed 8/19
5:00 am-3:38 pm
2 stops9h 38m
Lambert-St Louis
Wed 9/2
8:50 am-5:58 pm
2 stops10h 08m
$444
Sioux FallsSt. Louis
FSD - STL
FSDSTL
Sioux Falls Joe Foss Field
Mon 9/7
7:47 am-2:57 pm
1 stop7h 10m
Lambert-St Louis
Wed 9/9
5:30 pm-11:12 pm
1 stop5h 42m
$517
Sioux FallsSt. Louis
FSD - STL
FSDSTL
Sioux Falls Joe Foss Field
Tue 8/25
1:26 pm-4:44 pm
1 stop3h 18m
Lambert-St Louis
Wed 8/26
2:10 pm-10:51 pm
2 stops8h 41m
$573
Showing 1-10 of 26 resultsSorted by cheapest first
Best time to book a flight from South Dakota to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from South Dakota with our price prediction graph.
FSD-STL
RAP-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 South Dakota to St. Louis
USSD-STL
FSD-STL
RAP-STL
What is the cheapest month to book a flight from South Dakota to St. Louis?
Currently, January is the cheapest month in which you can book a flight from South Dakota to St. Louis (average of $208). Flying from South Dakota to St. Louis in June is currently the most expensive (average of $617). 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 South Dakota 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 South Dakota to St. Louis
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Complete your trip
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South Dakota and St. Louis flights
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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 1, 2026.
South Dakota to St. Louis flights
Consider these flights traveling from South Dakota to St. Louis.
Top 3 airlines flying from South Dakota to St. Louis
Discover the top 3 airlines that operate flights from South Dakota 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 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$208 | Average$342 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$243 | Average$377 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$264 | Average$373 | FlexibilityNo cancel fee | On-time69% |