$236+ Cheap flights from St. Louis to Sioux Falls (STL - FSD)
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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FSD
Mai 28 — Jun 41
Round-trip
1 adult, Economy
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Cheapest flights from St. Louis to Sioux FallsExplore the most affordable flight options available from St. Louis to Sioux Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 28, 2026.
Explore the most affordable flight options available from St. Louis to Sioux Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 28, 2026.
This Delta deal was found by Cheapflights users on 4/27. 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.
Mi 5/275:36 pm
STL
- FSD
1 stop5h 35m
Delta
Mi 6/35:00 am
FSD
- STL
1 stop5h 32m
Delta
Deal found 4/27![Delta logo]()
$271
This Delta deal was found by Cheapflights users on 4/27. 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.
Do 5/286:21 am
STL
- FSD
1 stop6h 28m
Delta
Di 6/210:56 am
FSD
- STL
1 stop5h 50m
Delta
Deal found 4/27![Delta logo]()
$279
This United Airlines deal was found by Cheapflights users on 4/27. 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.
Do 7/238:35 pm
STL
- FSD
1 stop4h 31m
United Airlines
Sa 7/256:00 am
FSD
- STL
1 stop6h 07m
United Airlines
Deal found 4/27![United Airlines logo]()
$280
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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.
Sa 5/237:05 pm
STL
- FSD
1 stop4h 21m
United Airlines
Di 5/266:00 am
FSD
- STL
1 stop6h 11m
United Airlines
Deal found 4/24![United Airlines logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 5/268:08 pm
STL
- FSD
1 stop22h 25m
Multiple Airlines
Fr 6/58:42 pm
FSD
- STL
2 stops41h 49m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$292
This Delta deal was found by Cheapflights users on 4/27. 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.
Di 5/265:36 pm
STL
- FSD
1 stop5h 35m
Delta
Mi 6/310:56 am
FSD
- STL
1 stop5h 50m
Delta
Deal found 4/27![Delta logo]()
$297
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 5/268:08 pm
STL
- FSD
1 stop22h 25m
Multiple Airlines
Do 6/46:51 pm
FSD
- STL
1 stop15h 38m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$304
This Delta deal was found by Cheapflights users on 4/27. 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.
Do 5/285:36 pm
STL
- FSD
1 stop5h 35m
Delta
Fr 6/51:35 pm
FSD
- STL
1 stop3h 11m
Delta
Deal found 4/27![Delta logo]()
$305
This Delta deal was found by Cheapflights users on 4/27. 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.
Fr 9/186:30 am
STL
- FSD
1 stop5h 58m
Delta
Sa 9/191:20 pm
FSD
- STL
1 stop3h 25m
Delta
Deal found 4/27![Delta logo]()
$310
This American Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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.
Di 5/125:21 pm
STL
- FSD
1 stop5h 45m
American Airlines
Di 5/196:00 am
FSD
- STL
1 stop5h 27m
American Airlines
Deal found 4/24![American Airlines logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 5/268:08 pm
STL
- FSD
1 stop22h 25m
Multiple Airlines
Mi 6/33:36 pm
FSD
- STL
2 stops27h 47m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 5/268:08 pm
STL
- FSD
1 stop22h 25m
Frontier
Mo 6/14:25 pm
FSD
- STL
1 stop26h 58m
Frontier
Deal found 4/27![Frontier logo]()
$318
Best flights from St. Louis to Sioux FallsDiscover carefully curated flight deals from St. Louis to Sioux Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 28, 2026.
Discover carefully curated flight deals from St. Louis to Sioux Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 28, 2026.
This Delta deal was found by Cheapflights users on 4/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 9/168:50 am
STL
- FSD
1 stop3h 38m
Delta
Sa 9/191:20 pm
FSD
- STL
1 stop3h 25m
Delta
Deal found 4/26![Delta logo]()
$271
This United Airlines deal was found by Cheapflights users on 4/27. 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.
Mi 5/275:10 am
STL
- FSD
1 stop7h 25m
United Airlines
So 5/316:00 am
FSD
- STL
1 stop6h 11m
United Airlines
Deal found 4/27![United Airlines logo]()
$350
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
Fr 5/85:36 pm
STL
- FSD
1 stop5h 35m
Delta
Di 5/125:00 am
FSD
- STL
1 stop3h 46m
Delta
Deal found 4/23![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 4/27. 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.
Sa 5/305:36 pm
STL
- FSD
1 stop5h 35m
Delta
Fr 6/51:35 pm
FSD
- STL
1 stop3h 11m
Delta
Deal found 4/27![Delta logo]()
$323
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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.
Fr 7/178:35 pm
STL
- FSD
1 stop4h 33m
United Airlines
Di 7/217:40 am
FSD
- STL
1 stop4h 31m
United Airlines
Deal found 4/24![United Airlines logo]()
$360
This Delta deal was found by Cheapflights users on 4/27. 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.
Fr 5/296:21 am
STL
- FSD
1 stop3h 54m
Delta
Mo 6/11:35 pm
FSD
- STL
1 stop19h 11m
Delta
Deal found 4/27![Delta logo]()
$336
This United Airlines deal was found by Cheapflights users on 4/27. 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.
Fr 5/225:29 pm
STL
- FSD
1 stop5h 57m
United Airlines
Mo 5/256:00 am
FSD
- STL
1 stop6h 11m
United Airlines
Deal found 4/27![United Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
Fr 5/225:36 pm
STL
- FSD
1 stop5h 35m
Delta
Mo 5/258:19 am
FSD
- STL
1 stop6h 12m
Delta
Deal found 4/23![Delta logo]()
$348
This Delta deal was found by Cheapflights users on 4/27. 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.
Sa 5/305:36 pm
STL
- FSD
1 stop5h 35m
Delta
Do 6/45:00 am
FSD
- STL
1 stop5h 32m
Delta
Deal found 4/27![Delta logo]()
$351
Last-minute flights from St. Louis to Sioux FallsDiscover last-minute flight deals from St. Louis to Sioux Falls. Data last updated April 28, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Sioux Falls. Data last updated April 28, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
Fr 5/85:36 pm
STL
- FSD
1 stop5h 35m
Delta
Di 5/125:00 am
FSD
- STL
1 stop3h 46m
Delta
Deal found 4/23![Delta logo]()
$319
This American Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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.
Di 5/125:21 pm
STL
- FSD
1 stop5h 45m
American Airlines
Di 5/196:00 am
FSD
- STL
1 stop5h 27m
American Airlines
Deal found 4/24![American Airlines logo]()
$314
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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.
Sa 5/237:05 pm
STL
- FSD
1 stop4h 21m
United Airlines
Di 5/266:00 am
FSD
- STL
1 stop6h 11m
United Airlines
Deal found 4/24![United Airlines logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 5/268:08 pm
STL
- FSD
1 stop22h 25m
Multiple Airlines
Fr 6/58:42 pm
FSD
- STL
2 stops41h 49m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$292
This Delta deal was found by Cheapflights users on 4/27. 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.
Di 5/265:36 pm
STL
- FSD
1 stop5h 35m
Delta
Mi 6/310:56 am
FSD
- STL
1 stop5h 50m
Delta
Deal found 4/27![Delta logo]()
$297
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 5/268:08 pm
STL
- FSD
1 stop22h 25m
Multiple Airlines
Do 6/46:51 pm
FSD
- STL
1 stop15h 38m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 5/268:08 pm
STL
- FSD
1 stop22h 25m
Multiple Airlines
Mi 6/33:36 pm
FSD
- STL
2 stops27h 47m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 5/268:08 pm
STL
- FSD
1 stop22h 25m
Frontier
Mo 6/14:25 pm
FSD
- STL
1 stop26h 58m
Frontier
Deal found 4/27![Frontier logo]()
$318
This Delta deal was found by Cheapflights users on 4/27. 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.
Di 5/265:36 pm
STL
- FSD
1 stop5h 35m
Delta
Fr 6/58:19 am
FSD
- STL
1 stop6h 12m
Delta
Deal found 4/27![Delta logo]()
$323
This Delta deal was found by Cheapflights users on 4/27. 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.
Mi 5/275:36 pm
STL
- FSD
1 stop5h 35m
Delta
Mi 6/35:00 am
FSD
- STL
1 stop5h 32m
Delta
Deal found 4/27![Delta logo]()
$271
This Delta deal was found by Cheapflights users on 4/27. 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.
Do 5/286:21 am
STL
- FSD
1 stop6h 28m
Delta
Di 6/210:56 am
FSD
- STL
1 stop5h 50m
Delta
Deal found 4/27![Delta logo]()
$279
This Delta deal was found by Cheapflights users on 4/27. 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.
Do 5/285:36 pm
STL
- FSD
1 stop5h 35m
Delta
Fr 6/51:35 pm
FSD
- STL
1 stop3h 11m
Delta
Deal found 4/27![Delta logo]()
$305
One-way flights from St. Louis to Sioux FallsSearch for one-way flight options from St. Louis to Sioux Falls. Find affordable one-way fares based on user searches. Data last updated April 28, 2026.
Search for one-way flight options from St. Louis to Sioux Falls. Find affordable one-way fares based on user searches. Data last updated April 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
Do 7/27:03 pm
STL
- FSD
2 stops41h 09m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
So 5/39:55 pm
STL
- FSD
2 stops39h 41m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$250
This United Airlines deal was found by Cheapflights users on 4/26. 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.
Do 7/28:35 pm
STL
- FSD
1 stop4h 31m
United Airlines
Deal found 4/26![United Airlines logo]()
$268
This Delta deal was found by Cheapflights users on 4/27. 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.
Fr 5/225:36 pm
STL
- FSD
1 stop5h 35m
Delta
Deal found 4/27![Delta logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” 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.
Fr 5/227:20 pm
STL
- FSD
3 stops46h 52m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$273
This Kiwi.com deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” 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.
So 5/38:06 pm
STL
- FSD
1 stop23h 05m
Frontier
Deal found 4/23![Frontier logo]()
$290
This United Airlines deal was found by Cheapflights users on 4/26. 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.
Mi 9/25:10 am
STL
- FSD
1 stop5h 33m
United Airlines
Deal found 4/26![United Airlines logo]()
$399
Find flight deals from St. Louis to Sioux Falls
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Sioux Falls (FSD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $271 (Delta) |
One-way from | $236 (Kiwi.com) |
Popular in | November |
Cheapest in | May |
Average price | $421 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Sioux Falls 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 April 28, 2026.
Use the filters below to find and compare flights from St. Louis to Sioux Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
St. LouisSioux Falls
STL - FSD
STLFSD
Lambert-St Louis
Mi 9/16
8:50 am-12:28 pm
1 stop3h 38m
Sioux Falls Joe Foss Field
Sa 9/19
1:20 pm-4:45 pm
1 stop3h 25m
$271
St. LouisSioux Falls
STL - FSD
STLFSD
Lambert-St Louis
Fr 5/8
5:36 pm-11:11 pm
1 stop5h 35m
Sioux Falls Joe Foss Field
Di 5/12
5:00 am-8:46 am
1 stop3h 46m
$319
St. LouisSioux Falls
STL - FSD
STLFSD
Lambert-St Louis
Sa 5/30
5:36 pm-11:11 pm
1 stop5h 35m
Sioux Falls Joe Foss Field
Fr 6/5
1:35 pm-4:46 pm
1 stop3h 11m
$323
St. LouisSioux Falls
STL - FSD
STLFSD
Lambert-St Louis
Fr 5/29
6:21 am-10:15 am
1 stop3h 54m
Sioux Falls Joe Foss Field
Mo 6/1
1:35 pm-8:46 am
1 stop19h 11m
$336
St. LouisSioux Falls
STL - FSD
STLFSD
Lambert-St Louis
Fr 5/22
5:36 pm-11:11 pm
1 stop5h 35m
Sioux Falls Joe Foss Field
Mo 5/25
8:19 am-2:31 pm
1 stop6h 12m
$348
St. LouisSioux Falls
STL - FSD
STLFSD
Lambert-St Louis
Mi 5/27
5:10 am-12:35 pm
1 stop7h 25m
Sioux Falls Joe Foss Field
So 5/31
6:00 am-12:11 pm
1 stop6h 11m
$350
St. LouisSioux Falls
STL - FSD
STLFSD
Lambert-St Louis
Sa 5/30
5:36 pm-11:11 pm
1 stop5h 35m
Sioux Falls Joe Foss Field
Do 6/4
5:00 am-10:32 am
1 stop5h 32m
$351
St. LouisSioux Falls
STL - FSD
STLFSD
Lambert-St Louis
Fr 7/17
8:35 pm-1:08 am
1 stop4h 33m
Sioux Falls Joe Foss Field
Di 7/21
7:40 am-12:11 pm
1 stop4h 31m
$360
St. LouisSioux Falls
STL - FSD
STLFSD
Lambert-St Louis
Fr 5/22
5:29 pm-11:26 pm
1 stop5h 57m
Sioux Falls Joe Foss Field
Mo 5/25
6:00 am-12:11 pm
1 stop6h 11m
$379
Cheapest one-way
Quickest one-way
St. LouisSioux Falls
STL - FSD
STLFSD
Lambert-St Louis
Do 7/2
8:35 pm-1:06 am
1 stop4h 31m
$268
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Sioux Falls
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Sioux Falls in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Sioux Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Sioux Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Sioux Falls flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Sioux Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Sioux Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to Sioux Falls
Have a flexible travel schedule? Discover the best time to fly to Sioux Falls from St. Louis with our price prediction graph.
STL-FSD
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 St. Louis to Sioux Falls
What is the cheapest month to book a flight from St. Louis to Sioux Falls?
Currently, May is the cheapest month in which you can book a flight from St. Louis to Sioux Falls (average of $293). Flying from St. Louis to Sioux Falls in November is currently the most expensive (average of $514). 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 St. Louis to Sioux Falls?
Reviews of airlines servicing Sioux Falls
Get insights into the airlines that provide service to Sioux Falls. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sioux Falls. Reviews last updated April 28, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican Airlines from St. Louis to Sioux Falls to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.9
Comfort
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.9
Comfort
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.9
Comfort
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Crew
8.5
Entertainment
7.8
Overall
7.9
Comfort
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Sioux Falls. 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 Sioux Falls?
Book flights to Sioux Falls if you plan to visit one of these locationsMarshall
Yankton
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St. Louis and Sioux Falls flights
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Top 3 airlines flying from St. Louis to Sioux Falls
Discover the top 3 airlines that operate flights from St. Louis to Sioux Falls. 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 April 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$216 | Average$363 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$242 | Average$404 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$263 | Average$424 | FlexibilityNo cancel fee | On-time71% |