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Sioux Falls

$149+ 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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FSD
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
1 adult, Economy
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Cheap flight deals from St. Louis to Sioux Falls

Cheapest flights from St. Louis to Sioux Falls
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 March 11, 2026.

This Frontier deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:06 pm
STL
-
FSD
1 stop23h 15m
Frontier
Fri 4/248:06 pm
FSD
-
STL
1 stop23h 26m
Frontier
Deal found 3/10$235
This American Airlines deal was found by Cheapflights users on 3/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/17:00 am
STL
-
FSD
1 stop5h 41m
American Airlines
Thu 4/307:39 pm
FSD
-
STL
1 stop4h 07m
American Airlines
Deal found 3/8$269
This American Airlines deal was found by Cheapflights users on 3/9. 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.
Tue 3/247:00 am
STL
-
FSD
1 stop5h 37m
American Airlines
Sat 3/286:50 am
FSD
-
STL
1 stop7h 00m
American Airlines
Deal found 3/9$279
This American Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/155:51 am
STL
-
FSD
1 stop6h 08m
American Airlines
Sun 4/196:00 am
FSD
-
STL
1 stop5h 37m
American Airlines
Deal found 3/10$289
This American Airlines deal was found by Cheapflights users on 3/9. 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.
Tue 6/237:00 am
STL
-
FSD
1 stop4h 37m
American Airlines
Fri 7/35:34 pm
FSD
-
STL
1 stop6h 22m
American Airlines
Deal found 3/9$294
This United Airlines deal was found by Cheapflights users on 3/8. 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 4/16:30 am
STL
-
FSD
1 stop4h 12m
United Airlines
Sun 4/57:39 am
FSD
-
STL
1 stop4h 43m
United Airlines
Deal found 3/8$329
This Kiwi.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1611:25 am
STL
-
FSD
2 stops29h 56m
Multiple Airlines
Fri 4/248:06 pm
FSD
-
STL
1 stop23h 26m
Multiple Airlines
Deal found 3/10$344
This United Airlines deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/266:02 pm
STL
-
FSD
1 stop5h 42m
United Airlines
Mon 3/301:43 pm
FSD
-
STL
1 stop7h 11m
United Airlines
Deal found 3/11$359
This Kiwi.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/236:40 pm
STL
-
FSD
1 stop20h 06m
Multiple Airlines
Fri 7/39:54 am
FSD
-
STL
2 stops8h 42m
Multiple Airlines
Deal found 3/9$466
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Sun 10/45:20 am
STL
-
FSD
1 stop5h 17m
United Airlines
Wed 10/75:00 pm
FSD
-
STL
1 stop6h 43m
United Airlines
Deal found 3/9$495

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 March 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$235
(Frontier)

One-way from

$149
(Kiwi.com)

Popular in

November

Cheapest in

May

Average price

$510
Provider with most accurate pricing for Lambert-St Louis-Sioux Falls Joe Foss Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lambert-St Louis-Sioux Falls Joe Foss Field flights.
Search Deals
From Lambert-St Louis to Sioux Falls Joe Foss Field
Search Deals
One-way flight from Lambert-St Louis to Sioux Falls Joe Foss Field
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 March 11, 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

Price

Cheapest round-trip

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Thu 4/16

8:06 pm-7:21 pm

1 stop23h 15m

Sioux Falls Joe Foss Field

Fri 4/24

8:06 pm-7:32 pm

1 stop23h 26m

$235
Quickest round-trip

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Wed 4/1

7:00 am-12:41 pm

1 stop5h 41m

Sioux Falls Joe Foss Field

Thu 4/30

7:39 pm-11:46 pm

1 stop4h 07m

$269

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Tue 3/24

7:00 am-12:37 pm

1 stop5h 37m

Sioux Falls Joe Foss Field

Sat 3/28

6:50 am-1:50 pm

1 stop7h 00m

$279

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Wed 4/15

5:51 am-11:59 am

1 stop6h 08m

Sioux Falls Joe Foss Field

Sun 4/19

6:00 am-11:37 am

1 stop5h 37m

$289

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Wed 4/1

2:40 pm-8:30 pm

1 stop5h 50m

Sioux Falls Joe Foss Field

Sun 4/5

7:39 am-2:24 pm

1 stop6h 45m

$329

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Thu 4/16

11:25 am-5:21 pm

2 stops29h 56m

Sioux Falls Joe Foss Field

Fri 4/24

8:06 pm-7:32 pm

1 stop23h 26m

$344

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 9/4

5:32 pm-11:37 pm

1 stop6h 05m

Sioux Falls Joe Foss Field

Sat 9/12

6:00 am-12:49 pm

1 stop6h 49m

$344

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Thu 4/2

9:10 am-2:34 pm

1 stop5h 24m

Sioux Falls Joe Foss Field

Sun 4/5

6:10 am-12:22 pm

1 stop6h 12m

$349
Cheapest one-way

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Mon 7/13

5:41 pm-12:51 am

1 stop7h 10m

$248
Quickest one-way

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 4/24

2:40 pm-8:30 pm

1 stop5h 50m

$258

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/8

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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, August is the cheapest month in which you can book a flight from St. Louis to Sioux Falls (average of $197). 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 March 11, 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.
Delta
7.9
Good
8,278 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,278 reviews
Delta
7.9
Good
8,278 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,414 reviews
Delta
7.9
Good
8,278 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,419 reviews
Delta
7.9
Good
8,278 reviews

Overall

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.

  • How long is the flight from St. Louis to Sioux Falls?

    A quick flight from St. Louis to Sioux Falls can take about 5h 41m. Frontier provides one of the quickest options available for as low as $269. The distance between St. Louis and Sioux Falls is about 470 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from St. Louis to Sioux Falls round-trip?

    According to our current data, Delta ($216), American Airlines ($228), and United Airlines ($253) offers the cheapest pricing from St. Louis to Sioux Falls. Delta is 45% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from St. Louis to Sioux Falls that include hotel bookings?

    Yes. In addition to deals on St. Louis to Sioux Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Sioux Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Sioux Falls.

  • Can I find deals for business class flights from St. Louis to Sioux Falls?

    Yes. Cheapflights offers flight deals from St. Louis to Sioux Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Sioux Falls?

    Currently, August is the cheapest month in which you can book a flight from St. Louis to Sioux Falls (average of $197). 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.

See more FAQs

Traveling to a place near Sioux Falls?

Book flights to Sioux Falls if you plan to visit one of these locations
Marshall

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Alternative routes for St. Louis to Sioux Falls

See prices for flight routes from nearby airports that may be better suited for you.
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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 March 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$216Average$297FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$228Average$383FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$253Average$397FlexibilityNo cancel feeOn-time69%

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