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Cheap flights from St. Louis to Sioux Falls from $146

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 Sioux Falls departing on 4/15. 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 St. Louis to Sioux Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:06 pm - 7:21 pm
STL
-
FSD
23h 15m
1 stop
Frontier Logo
8:06 pm - 7:32 pm
FSD
-
STL
23h 26m
1 stop
$235Frontier
Thu, Apr 16 - Fri, Apr 24
American Airlines Logo
7:00 am - 12:41 pm
STL
-
FSD
5h 41m
1 stop
American Airlines Logo
7:39 pm - 11:46 pm
FSD
-
STL
4h 07m
1 stop
$269American Airlines
Wed, Apr 1 - Thu, Apr 30
American Airlines Logo
7:00 am - 12:37 pm
STL
-
FSD
5h 37m
1 stop
American Airlines Logo
6:50 am - 1:50 pm
FSD
-
STL
7h 00m
1 stop
$279American Airlines
Tue, Mar 24 - Sat, Mar 28
Delta Logo
5:35 pm - 11:02 pm
STL
-
FSD
5h 27m
1 stop
Delta Logo
8:05 am - 2:29 pm
FSD
-
STL
6h 24m
1 stop
$289Delta
Wed, Apr 15 - Sun, Apr 19
American Airlines Logo
7:00 am - 11:37 am
STL
-
FSD
4h 37m
1 stop
American Airlines Logo
5:34 pm - 11:56 pm
FSD
-
STL
6h 22m
1 stop
$294American Airlines
Tue, Jun 23 - Fri, Jul 3
American Airlines Logo
4:13 pm - 9:40 pm
STL
-
FSD
5h 27m
1 stop
American Airlines Logo
6:50 am - 1:50 pm
FSD
-
STL
7h 00m
1 stop
$299American Airlines
Tue, Mar 24 - Sat, Mar 28
United Airlines Logo
6:25 am - 10:46 am
STL
-
FSD
4h 21m
1 stop
United Airlines Logo
3:10 pm - 7:14 pm
FSD
-
STL
4h 04m
1 stop
$319United Airlines
Tue, Mar 24 - Sat, Mar 28
United Airlines Logo
6:30 am - 10:42 am
STL
-
FSD
4h 12m
1 stop
United Airlines Logo
7:39 am - 12:22 pm
FSD
-
STL
4h 43m
1 stop
$329United Airlines
Wed, Apr 1 - Sun, Apr 5
Multiple Airlines Logo
11:25 am - 5:21 pm
STL
-
FSD
29h 56m
2 stops
Multiple Airlines Logo
8:06 pm - 7:32 pm
FSD
-
STL
23h 26m
1 stop
$344Multiple Airlines
Thu, Apr 16 - Fri, Apr 24
United Airlines Logo
9:10 am - 2:34 pm
STL
-
FSD
5h 24m
1 stop
United Airlines Logo
6:00 am - 1:08 pm
FSD
-
STL
7h 08m
1 stop
$349United Airlines
Wed, Apr 1 - Sun, Apr 5

American Airlines flights from St. Louis to Sioux Falls

Our best American Airlines deals on St. Louis to Sioux Falls flight tickets
American Airlines
Apr 1
STL7:00 amLambert-St Louis
5h 41m
1 stop
FSD12:41 pmSioux Falls Joe Foss Field
Apr 30
FSD7:39 pmSioux Falls Joe Foss Field
4h 07m
1 stop
STL11:46 pmLambert-St Louis
$269
American Airlines
Mar 24
STL7:00 amLambert-St Louis
5h 37m
1 stop
FSD12:37 pmSioux Falls Joe Foss Field
Mar 28
FSD6:50 amSioux Falls Joe Foss Field
7h 00m
1 stop
STL1:50 pmLambert-St Louis
$279
American Airlines
Jun 23
STL7:00 amLambert-St Louis
4h 37m
1 stop
FSD11:37 amSioux Falls Joe Foss Field
Jul 3
FSD5:34 pmSioux Falls Joe Foss Field
6h 22m
1 stop
STL11:56 pmLambert-St Louis
$294

United Airlines flights from St. Louis to Sioux Falls

Our best United Airlines deals on St. Louis to Sioux Falls flight tickets
United Airlines
Mar 24
STL6:25 amLambert-St Louis
4h 21m
1 stop
FSD10:46 amSioux Falls Joe Foss Field
Mar 28
FSD3:10 pmSioux Falls Joe Foss Field
4h 04m
1 stop
STL7:14 pmLambert-St Louis
$319
United Airlines
Apr 1
STL6:30 amLambert-St Louis
4h 12m
1 stop
FSD10:42 amSioux Falls Joe Foss Field
Apr 5
FSD7:39 amSioux Falls Joe Foss Field
4h 43m
1 stop
STL12:22 pmLambert-St Louis
$329
United Airlines
Mar 20
STL3:24 pmLambert-St Louis
6h 38m
1 stop
FSD10:02 pmSioux Falls Joe Foss Field
Mar 23
FSD5:10 pmSioux Falls Joe Foss Field
6h 24m
1 stop
STL11:34 pmLambert-St Louis
$339

momondo 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, momondo users made 832,500 searches. Data last updated March 13, 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

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

5:35 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

Tue 6/23

7:00 am-11:37 am

1 stop4h 37m

Sioux Falls Joe Foss Field

Fri 7/3

5:34 pm-11:56 pm

1 stop6h 22m

$294

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Tue 3/24

4:13 pm-9:40 pm

1 stop5h 27m

Sioux Falls Joe Foss Field

Sat 3/28

6:50 am-1:50 pm

1 stop7h 00m

$299
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. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Wed 4/1

6:30 am-10:42 am

1 stop4h 12m

Sioux Falls Joe Foss Field

Sun 4/5

7:39 am-12:22 pm

1 stop4h 43m

$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

Wed 4/1

9:10 am-2:34 pm

1 stop5h 24m

Sioux Falls Joe Foss Field

Sun 4/5

6:00 am-1:08 pm

1 stop7h 08m

$349

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 Sioux Falls from

How to get the cheapest flight ticket from St. Louis to Sioux Falls

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 typical price of a round-trip flight between St. Louis and Sioux Falls?

What is the cheapest month to fly to Sioux Falls?

The cheapest month to fly to Sioux Falls from St. Louis is in May. Flight prices, which tend to average around $293, are often lower during this time because this is during the off-season. If you’re not able to fly to Sioux Falls in May, then September is your next best option. Flight prices from St. Louis to Sioux Falls during September average around $297.

When to book flights from St. Louis to Sioux Falls

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Sioux Falls according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Sioux Falls (STL to FSD) flight deals and tips

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

Fastest flight time

3h 16m

Direct flights

None
The fastest flight from St. Louis to Sioux Falls takes 3h 16m
There are no direct flights from St. Louis to Sioux Falls. There are no popular flight routes from St. Louis to Sioux Falls.
Search flight deals

  • How far is Lambert-St Louis to Sioux Falls Joe Foss Field by plane?

    A flight from Lambert-St Louis to Sioux Falls Joe Foss Field will travel around 480.2 mi. By plane, this route typically takes 3h 16m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Sioux Falls Joe Foss Field Airport?

    Prices for flights from Lambert-St Louis Airport to Sioux Falls Joe Foss Field Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Sioux Falls Joe Foss Field Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Sioux Falls Joe Foss Field 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 Lambert-St Louis Airport to Sioux Falls Joe Foss Field Airport.

  • What documentation or ID do you need to fly to Sioux Falls Joe Foss Field Airport?

    The travel and health documents you'll need for your trip to Sioux Falls Joe Foss Field 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 Sioux Falls Joe Foss Field Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Sioux Falls?

Best airlines flying from St. Louis to Sioux Falls

Compare and see reviews for airlines that fly from St. Louis to Sioux Falls with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $216Free CancellationRating
7.9
8,287 reviews
Search Delta flights
American AirlinesPriceFrom $228Free CancellationRating
7.1
11,449 reviews
Search American Airlines flights
United AirlinesPriceFrom $253Free CancellationRating
7.4
9,418 reviews
Search United Airlines flights

Traveling to a place near Sioux Falls?

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

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Sioux Falls?

Finding the right flight to Sioux Falls from St. Louis 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 Sioux Falls quick and easy, saving you time and money.

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

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

How can momondo help me find flights from St. Louis to Sioux Falls?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Sioux Falls.

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Of course. momondo tracks the price of St. Louis to Sioux Falls 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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