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South Dakota

$146+ Cheap flights from St. Louis (STL) to South Dakota

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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FSD
Apr 13 — Apr 201
Mon 4/13
Mon 4/20
1 adult, Economy
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Cheap flight deals from St. Louis to South Dakota

Cheapest flights from St. Louis to South Dakota
Explore the most affordable flight options available from St. Louis to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 14, 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 3/9. 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 Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/155:35 pm
STL
-
FSD
1 stop5h 27m
Delta
Sun 4/198:05 am
FSD
-
STL
1 stop6h 24m
Delta
Deal found 3/11$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 Delta deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:30 am
STL
-
FSD
1 stop5h 58m
Delta
Thu 8/135:15 am
FSD
-
STL
1 stop3h 25m
Delta
Deal found 3/13$309
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.
Mon 5/45:59 pm
STL
-
RAP
1 stop4h 56m
United Airlines
Sun 5/105:20 am
RAP
-
STL
1 stop6h 53m
United Airlines
Deal found 3/11$309
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 5/77:45 am
STL
-
RAP
2 stops9h 10m
United Airlines
Wed 5/131:00 pm
RAP
-
STL
1 stop6h 43m
United Airlines
Deal found 3/11$314
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:25 am
STL
-
FSD
1 stop4h 21m
United Airlines
Sat 3/283:10 pm
FSD
-
STL
1 stop4h 04m
United Airlines
Deal found 3/12$319
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/255:55 pm
STL
-
RAP
1 stop5h 02m
United Airlines
Sun 3/292:42 pm
RAP
-
STL
1 stop5h 12m
United Airlines
Deal found 3/10$319
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:30 am
STL
-
FSD
1 stop5h 58m
Delta
Sun 9/205:15 am
FSD
-
STL
1 stop3h 25m
Delta
Deal found 3/12$328
This Delta deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/135:36 pm
STL
-
RAP
1 stop5h 47m
Delta
Sat 5/2312:45 pm
RAP
-
STL
1 stop7h 44m
Delta
Deal found 3/13$329
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/135:59 pm
STL
-
RAP
1 stop4h 56m
United Airlines
Sat 5/234:40 pm
RAP
-
STL
1 stop6h 17m
United Airlines
Deal found 3/10$333

Find flight deals from St. Louis to South Dakota

Keep the following information in mind while searching for St. Louis to South Dakota flight deals. Data was last updated March 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$235
(Frontier)

One-way from

$146
(Delta)

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 South Dakota
Search Deals
One-way flight from Lambert-St Louis to South Dakota
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 South Dakota 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 14, 2026.
Use the filters below to find and compare flights from St. Louis to South Dakota 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

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

5:35 pm-11:02 pm

1 stop5h 27m

Sioux Falls Joe Foss Field

Sun 4/19

8:05 am-2:29 pm

1 stop6h 24m

$289

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

Thu 3/26

10:00 am-2:32 pm

1 stop4h 32m

Sioux Falls Joe Foss Field

Mon 3/30

9:05 am-4:56 pm

1 stop7h 51m

$299

St. LouisRapid City

STL - RAP

STLRAP

Lambert-St Louis

Thu 5/7

5:59 pm-9:55 pm

1 stop4h 56m

Rapid City

Wed 5/13

7:00 am-1:13 pm

1 stop5h 13m

$309
Quickest round-trip

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Tue 3/24

6:25 am-10:46 am

1 stop4h 21m

Sioux Falls Joe Foss Field

Sat 3/28

3:10 pm-7:14 pm

1 stop4h 04m

$319

St. LouisRapid City

STL - RAP

STLRAP

Lambert-St Louis

Wed 5/13

5:59 pm-9:55 pm

1 stop4h 56m

Rapid City

Sat 5/23

11:20 am-9:18 pm

2 stops8h 58m

$338

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 3/20

3:24 pm-10:02 pm

1 stop6h 38m

Sioux Falls Joe Foss Field

Mon 3/23

5:10 pm-11:34 pm

1 stop6h 24m

$339

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

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Showing 1-10 of 28 resultsSorted by cheapest first
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3

Best time to book a flight from St. Louis to South Dakota

Have a flexible travel schedule? Discover the best time to fly to South Dakota 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 South Dakota

What is the cheapest month to book a flight from St. Louis to South Dakota?

Currently, August is the cheapest month in which you can book a flight from St. Louis to South Dakota (average of $197). Flying from St. Louis to South Dakota in January is currently the most expensive (average of $310). 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 South Dakota?

Reviews of airlines servicing South Dakota

Get insights into the airlines that provide service to South Dakota. 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 South Dakota. Reviews last updated March 14, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican Airlines from St. Louis to South Dakota to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,291 reviews

Food

7.2

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

Entertainment

7.8

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
8,291 reviews
Delta
7.9
Good
8,291 reviews

Food

7.2

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

Entertainment

7.8

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
9,423 reviews
Delta
7.9
Good
8,291 reviews

Food

7.2

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

Entertainment

7.8

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
11,464 reviews
Delta
7.9
Good
8,291 reviews

Food

7.2

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

Entertainment

7.8

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 South Dakota. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from St. Louis to South Dakota?

    Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to South Dakota. It is only a 12.7 mi journey to Lambert-St Louis (STL) from St. Louis’s city center.

  • How long is the flight from St. Louis to South Dakota?

    Airlines like Frontier, American Airlines, and Delta fly from St. Louis to South Dakota in about 5h 27m. The time it takes to get you to your destination can typically vary by up to 17h 48m. The distance between St. Louis and South Dakota is about 470 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

  • How can I find direct flights from St. Louis to South Dakota?

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

  • Can I find deals for business class flights from St. Louis to South Dakota?

    Yes. Cheapflights offers flight deals from St. Louis to South Dakota 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 South Dakota?

    Currently, August is the cheapest month in which you can book a flight from St. Louis to South Dakota (average of $197). Flying from St. Louis to South Dakota in January is currently the most expensive (average of $310). 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

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Alternative routes for St. Louis to South Dakota

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 South Dakota

Discover the top 3 airlines that operate flights from St. Louis to South Dakota. 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 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$216Average$310FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$228Average$391FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$253Average$386FlexibilityNo cancel feeOn-time69%

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