Cheap flights from St. Louis to South Dakota from $141

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to South Dakota departing on 4/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from St. Louis to South Dakota

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
8:30 pm - 12:49 am
STL
-
FSD
4h 19m
1 stop
United Airlines Logo
6:51 pm - 11:57 pm
FSD
-
STL
5h 06m
1 stop
$271United Airlines
Wed, May 20 - Wed, May 27
American Airlines Logo
7:12 am - 12:49 pm
STL
-
FSD
5h 37m
1 stop
American Airlines Logo
5:35 pm - 11:59 pm
FSD
-
STL
6h 24m
1 stop
$272American Airlines
Sat, May 16 - Sat, May 23
American Airlines Logo
5:40 am - 11:46 am
STL
-
FSD
6h 06m
1 stop
American Airlines Logo
5:54 pm - 11:41 pm
FSD
-
STL
5h 47m
1 stop
$290American Airlines
Sat, Sep 19 - Mon, Sep 21
Multiple Airlines Logo
9:50 am - 5:48 pm
STL
-
FSD
7h 58m
2 stops
Multiple Airlines Logo
8:06 pm - 7:32 pm
FSD
-
STL
23h 26m
1 stop
$297Multiple Airlines
Fri, Apr 24 - Fri, May 1
American Airlines Logo
5:20 am - 12:56 pm
STL
-
FSD
7h 36m
1 stop
American Airlines Logo
3:17 pm - 10:17 pm
FSD
-
STL
7h 00m
1 stop
$309American Airlines
Fri, Apr 24 - Fri, May 1
American Airlines Logo
5:40 am - 11:46 am
STL
-
FSD
6h 06m
1 stop
American Airlines Logo
5:54 pm - 11:41 pm
FSD
-
STL
5h 47m
1 stop
$310American Airlines
Wed, Sep 23 - Mon, Sep 28
Delta Logo
6:19 am - 10:17 am
STL
-
RAP
4h 58m
1 stop
Delta Logo
6:00 am - 11:43 am
RAP
-
STL
4h 43m
1 stop
$319Delta
Wed, Apr 15 - Sun, Apr 19
American Airlines Logo
5:51 am - 11:59 am
STL
-
FSD
6h 08m
1 stop
American Airlines Logo
12:29 pm - 4:41 pm
FSD
-
STL
4h 12m
1 stop
$319American Airlines
Fri, Apr 17 - Sun, Apr 19
Delta Logo
6:48 am - 3:15 pm
STL
-
RAP
9h 27m
2 stops
Delta Logo
6:00 am - 11:43 am
RAP
-
STL
4h 43m
1 stop
$324Delta
Wed, Apr 15 - Sun, Apr 19
United Airlines Logo
8:35 pm - 1:08 am
STL
-
FSD
4h 33m
1 stop
United Airlines Logo
7:40 am - 12:11 pm
FSD
-
STL
4h 31m
1 stop
$348United Airlines
Fri, Jul 17 - Tue, Jul 21

American Airlines flights from St. Louis to South Dakota

Our best American Airlines deals on St. Louis to South Dakota flight tickets
American Airlines
May 16
STL7:12 amLambert-St Louis
5h 37m
1 stop
FSD12:49 pmSioux Falls Joe Foss Field
May 23
FSD5:35 pmSioux Falls Joe Foss Field
6h 24m
1 stop
STL11:59 pmLambert-St Louis
$272
American Airlines
Sep 19
STL5:40 amLambert-St Louis
6h 06m
1 stop
FSD11:46 amSioux Falls Joe Foss Field
Sep 21
FSD5:54 pmSioux Falls Joe Foss Field
5h 47m
1 stop
STL11:41 pmLambert-St Louis
$290
American Airlines
Apr 24
STL5:20 amLambert-St Louis
7h 36m
1 stop
FSD12:56 pmSioux Falls Joe Foss Field
May 1
FSD3:17 pmSioux Falls Joe Foss Field
7h 00m
1 stop
STL10:17 pmLambert-St Louis
$309

United Airlines flights from St. Louis to South Dakota

Our best United Airlines deals on St. Louis to South Dakota flight tickets
United Airlines
May 20
STL8:30 pmLambert-St Louis
4h 19m
1 stop
FSD12:49 amSioux Falls Joe Foss Field
May 27
FSD6:51 pmSioux Falls Joe Foss Field
5h 06m
1 stop
STL11:57 pmLambert-St Louis
$271
United Airlines
Jul 17
STL8:35 pmLambert-St Louis
4h 33m
1 stop
FSD1:08 amSioux Falls Joe Foss Field
Jul 21
FSD7:40 amSioux Falls Joe Foss Field
4h 31m
1 stop
STL12:11 pmLambert-St Louis
$348
United Airlines
May 8
STL5:59 pmLambert-St Louis
4h 56m
1 stop
RAP9:55 pmRapid City
May 16
RAP7:00 amRapid City
6h 28m
1 stop
STL2:28 pmLambert-St Louis
$354

momondo 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, momondo users made 832,500 searches. Data last updated April 3, 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

Wed 5/20

8:30 pm-12:49 am

1 stop4h 19m

Sioux Falls Joe Foss Field

Wed 5/27

6:51 pm-11:57 pm

1 stop5h 06m

$271

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Sat 5/16

7:12 am-12:49 pm

1 stop5h 37m

Sioux Falls Joe Foss Field

Sat 5/23

5:35 pm-11:59 pm

1 stop6h 24m

$272

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Sat 9/19

5:40 am-11:46 am

1 stop6h 06m

Sioux Falls Joe Foss Field

Mon 9/21

5:54 pm-11:41 pm

1 stop5h 47m

$290

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 4/24

9:50 am-5:48 pm

2 stops7h 58m

Sioux Falls Joe Foss Field

Fri 5/1

8:06 pm-7:32 pm

1 stop23h 26m

$297

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 4/24

5:20 am-12:56 pm

1 stop7h 36m

Sioux Falls Joe Foss Field

Fri 5/1

3:17 pm-10:17 pm

1 stop7h 00m

$309

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Wed 9/23

5:40 am-11:46 am

1 stop6h 06m

Sioux Falls Joe Foss Field

Mon 9/28

5:54 pm-11:41 pm

1 stop5h 47m

$310

St. LouisRapid City

STL - RAP

STLRAP

Lambert-St Louis

Wed 4/15

6:19 am-10:17 am

1 stop4h 58m

Rapid City

Sun 4/19

6:00 am-11:43 am

1 stop4h 43m

$319

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 4/17

5:51 am-11:59 am

1 stop6h 08m

Sioux Falls Joe Foss Field

Sun 4/19

12:29 pm-4:41 pm

1 stop4h 12m

$319

St. LouisRapid City

STL - RAP

STLRAP

Lambert-St Louis

Wed 4/15

6:48 am-3:15 pm

2 stops9h 27m

Rapid City

Sun 4/19

6:00 am-11:43 am

1 stop4h 43m

$324
Quickest round-trip

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 7/17

8:35 pm-1:08 am

1 stop4h 33m

Sioux Falls Joe Foss Field

Tue 7/21

7:40 am-12:11 pm

1 stop4h 31m

$348

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to South Dakota from

How to get the cheapest flight ticket from St. Louis to South Dakota

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to South Dakota?

The month of May is, on average, the cheapest month to fly to South Dakota from St. Louis, with most prices found around $293. If you aren’t able to travel to South Dakota during the month of May, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $297.

Cheap St. Louis to South Dakota flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to South Dakota

Fastest flight time

4h 19m

Direct flights

None
The fastest flight from St. Louis to South Dakota takes 4h 19m
There are no direct flights from St. Louis to South Dakota. There are no popular flight routes from St. Louis to South Dakota.

Frequently asked questions about flying from St. Louis to South Dakota

  • When did momondo last update prices for flights from Lambert-St Louis Airport to South Dakota?

    Prices for flights from Lambert-St Louis Airport to South Dakota refresh daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to South Dakota?

  • How old do you have to be to fly from Lambert-St Louis Airport to South Dakota?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to South Dakota.

  • What documentation or ID do you need to fly to South Dakota?

    The travel and health documents you'll need for your trip to South Dakota may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at South Dakota. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from St. Louis to South Dakota

Compare and see reviews for airlines that fly from St. Louis to South Dakota with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $216Free CancellationRating
7.9
8,374 reviews
Search Delta flights
American AirlinesPriceFrom $228Free CancellationRating
7.1
11,551 reviews
Search American Airlines flights
United AirlinesPriceFrom $253Free CancellationRating
7.4
9,538 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to South Dakota?

It is quick and easy to find St. Louis to South Dakota flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to South Dakota that suits you.

Can I find flights from St. Louis to South Dakota with flexible booking policies on momondo?

Flights from St. Louis to South Dakota with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from St. Louis to South Dakota?

momondo provides multiple filters to help you find the best flight to South Dakota from St. Louis. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from St. Louis to South Dakota right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of St. Louis to South Dakota flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
Sun 5/3
Sun 5/10

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