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Cheap flights from South Dakota to St. Louis from $191

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from South Dakota to St. Louis departing on 4/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from South Dakota to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:45 pm - 10:59 pm
FSD
-
STL
4h 14m
1 stop
United Airlines Logo
4:49 pm - 9:57 pm
STL
-
FSD
5h 08m
1 stop
$259United Airlines
Fri, Feb 20 - Mon, Feb 23
American Airlines Logo
1:08 pm - 7:30 pm
RAP
-
STL
5h 22m
1 stop
American Airlines Logo
5:46 am - 11:23 am
STL
-
RAP
6h 37m
1 stop
$269American Airlines
Wed, Apr 8 - Mon, Apr 13
United Airlines Logo
3:15 pm - 9:05 pm
FSD
-
STL
5h 50m
1 stop
United Airlines Logo
6:25 am - 10:46 am
STL
-
FSD
4h 21m
1 stop
$274United Airlines
Tue, Feb 24 - Sat, Feb 28
Frontier Logo
2:16 pm - 1:09 pm
FSD
-
STL
22h 53m
1 stop
Frontier Logo
5:18 pm - 1:21 pm
STL
-
FSD
20h 03m
1 stop
$293Frontier
Sun, Mar 1 - Wed, Mar 4
American Airlines Logo
5:44 am - 11:01 am
FSD
-
STL
5h 17m
1 stop
American Airlines Logo
8:00 am - 1:33 pm
STL
-
FSD
5h 33m
1 stop
$299American Airlines
Thu, Feb 19 - Sat, Feb 21
Frontier Logo
2:16 pm - 1:09 pm
FSD
-
STL
22h 53m
1 stop
Frontier Logo
8:17 pm - 1:21 pm
STL
-
FSD
17h 04m
2 stops
$304Frontier
Sun, Mar 1 - Wed, Mar 4
Delta Logo
6:00 am - 11:32 am
RAP
-
STL
4h 32m
1 stop
Delta Logo
5:47 pm - 10:24 pm
STL
-
RAP
5h 37m
1 stop
$314Delta
Wed, May 6 - Sat, May 16
Delta Logo
5:00 am - 10:43 am
FSD
-
STL
5h 43m
1 stop
Delta Logo
11:30 am - 11:53 am
STL
-
FSD
24h 23m
1 stop
$334Delta
Wed, Mar 4 - Sat, Mar 7
American Airlines Logo
5:34 pm - 12:11 am
FSD
-
STL
6h 37m
1 stop
American Airlines Logo
6:00 am - 11:32 am
STL
-
FSD
5h 32m
1 stop
$344American Airlines
Thu, May 28 - Sun, May 31
United Airlines Logo
12:25 pm - 8:26 pm
RAP
-
STL
7h 01m
1 stop
United Airlines Logo
4:30 pm - 10:16 pm
STL
-
RAP
6h 46m
1 stop
$344United Airlines
Wed, Feb 25 - Sat, Feb 28

Frontier flights from South Dakota to St. Louis

Our best Frontier deals on South Dakota to St. Louis flight tickets
Frontier
Mar 1
FSD2:16 pmSioux Falls Joe Foss Field
22h 53m
1 stop
STL1:09 pmLambert-St Louis
Mar 4
STL5:18 pmLambert-St Louis
20h 03m
1 stop
FSD1:21 pmSioux Falls Joe Foss Field
$293
Frontier
Mar 1
FSD2:16 pmSioux Falls Joe Foss Field
22h 53m
1 stop
STL1:09 pmLambert-St Louis
Mar 4
STL8:17 pmLambert-St Louis
17h 04m
2 stops
FSD1:21 pmSioux Falls Joe Foss Field
$304
Frontier
Feb 13
FSD1:41 pmSioux Falls Joe Foss Field
24h 15m
1 stop
STL1:56 pmLambert-St Louis
Feb 15
STL3:49 pmLambert-St Louis
22h 08m
2 stops
FSD1:57 pmSioux Falls Joe Foss Field
$568

American Airlines flights from South Dakota to St. Louis

Our best American Airlines deals on South Dakota to St. Louis flight tickets
American Airlines
Apr 8
RAP1:08 pmRapid City
5h 22m
1 stop
STL7:30 pmLambert-St Louis
Apr 13
STL5:46 amLambert-St Louis
6h 37m
1 stop
RAP11:23 amRapid City
$269
American Airlines
Feb 19
FSD7:42 pmSioux Falls Joe Foss Field
4h 06m
1 stop
STL11:48 pmLambert-St Louis
Feb 21
STL8:00 amLambert-St Louis
5h 33m
1 stop
FSD1:33 pmSioux Falls Joe Foss Field
$299
American Airlines
Feb 13
FSD7:42 pmSioux Falls Joe Foss Field
3h 53m
1 stop
STL11:35 pmLambert-St Louis
Feb 15
STL5:12 amLambert-St Louis
7h 29m
1 stop
FSD12:41 pmSioux Falls Joe Foss Field
$369

momondo 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, momondo users made 832,500 searches. Data last updated February 10, 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

Price

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Fri 2/20

6:45 pm-10:59 pm

1 stop4h 14m

Lambert-St Louis

Mon 2/23

4:49 pm-9:57 pm

1 stop5h 08m

$259

Rapid CitySt. Louis

RAP - STL

RAPSTL

Rapid City

Wed 4/8

1:08 pm-7:30 pm

1 stop5h 22m

Lambert-St Louis

Mon 4/13

5:46 am-11:23 am

1 stop6h 37m

$269

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Tue 2/24

3:15 pm-9:05 pm

1 stop5h 50m

Lambert-St Louis

Sat 2/28

6:25 am-10:46 am

1 stop4h 21m

$274

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Sun 3/1

2:16 pm-1:09 pm

1 stop22h 53m

Lambert-St Louis

Wed 3/4

5:18 pm-1:21 pm

1 stop20h 03m

$293

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Thu 2/19

5:44 am-11:01 am

1 stop5h 17m

Lambert-St Louis

Sat 2/21

8:00 am-1:33 pm

1 stop5h 33m

$299

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Sun 3/1

2:16 pm-1:09 pm

1 stop22h 53m

Lambert-St Louis

Wed 3/4

8:17 pm-1:21 pm

2 stops17h 04m

$304

Rapid CitySt. Louis

RAP - STL

RAPSTL

Rapid City

Wed 5/6

6:00 am-11:32 am

1 stop4h 32m

Lambert-St Louis

Sat 5/16

5:47 pm-10:24 pm

1 stop5h 37m

$314

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Wed 3/4

5:00 am-10:43 am

1 stop5h 43m

Lambert-St Louis

Sat 3/7

11:30 am-11:53 am

1 stop24h 23m

$334

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Thu 5/28

5:34 pm-12:11 am

1 stop6h 37m

Lambert-St Louis

Sun 5/31

6:00 am-11:32 am

1 stop5h 32m

$344

Rapid CitySt. Louis

RAP - STL

RAPSTL

Rapid City

Wed 2/25

12:25 pm-8:26 pm

1 stop7h 01m

Lambert-St Louis

Sat 2/28

4:30 pm-10:16 pm

1 stop6h 46m

$344

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to St. Louis from

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

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 St. Louis?

In general, September is the cheapest month to fly from South Dakota to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $278. The month of August is another great option to travel to St. Louis, with average flight prices from South Dakota averaging around $288.

Can stopping save me money on South Dakota to St. Louis flights?

You could potentially save up to 87% on your flight if you consider stops on a South Dakota to St. Louis flight.

Cheap South Dakota to St. Louis flight deals and tips

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

Fastest flight time

4h 21m

Direct flights

None
The fastest flight from South Dakota to St. Louis takes 4h 21m
There are no direct flights from South Dakota to St. Louis. There are no popular flight routes from South Dakota to St. Louis.
Search flight deals

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from South Dakota to Lambert-St Louis Airport.

  • What documentation or ID do you need to fly to Lambert-St Louis Airport?

    The travel and health documents you'll need for your trip to Lambert-St Louis Airport 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 Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from South Dakota to St. Louis

Compare and see reviews for airlines that fly from South Dakota to St. Louis with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $174Free CancellationRating
7.9
8,176 reviews
Search Delta flights
American AirlinesPriceFrom $243Free CancellationRating
7.2
11,258 reviews
Search American Airlines flights
United AirlinesPriceFrom $264Free CancellationRating
7.4
9,262 reviews
Search United Airlines flights

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
St. Charles
Chesterfield
Hermann
Fairview Heights
Maryland Heights
Florissant
O'Fallon
Collinsville
St. Peters
Fenton
Wentzville
Alton
Farmington
Clayton
Edwardsville
Eureka
Festus
Litchfield
Glencoe
Shrewsbury

Why use momondo?

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

Finding the right flight to St. Louis from South Dakota is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to St. Louis quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to St. Louis from South Dakota which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for South Dakota to St. Louis flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to St. Louis from South Dakota are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your St. Louis trip

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