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Cheap flights from St. Louis to Sioux Falls from $249

This is the cheapest round-trip 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 3/19. 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 Sioux Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:29 am - 10:21 am
STL
-
FSD
3h 52m
1 stop
Delta Logo
5:00 am - 9:01 am
FSD
-
STL
4h 01m
1 stop
$249Delta
Thu, Mar 19 - Sun, Mar 22
United Airlines Logo
2:45 pm - 8:39 pm
STL
-
FSD
5h 54m
1 stop
United Airlines Logo
6:45 pm - 10:59 pm
FSD
-
STL
4h 14m
1 stop
$254United Airlines
Fri, Feb 27 - Sun, Mar 1
Delta Logo
5:29 pm - 10:55 pm
STL
-
FSD
5h 26m
1 stop
Delta Logo
10:50 am - 2:54 pm
FSD
-
STL
4h 04m
1 stop
$259Delta
Tue, Feb 24 - Sat, Feb 28
Delta Logo
6:10 am - 10:08 am
STL
-
FSD
3h 58m
1 stop
Delta Logo
10:50 am - 2:54 pm
FSD
-
STL
4h 04m
1 stop
$269Delta
Thu, Feb 26 - Sat, Feb 28
Multiple Airlines Logo
9:50 am - 6:06 pm
STL
-
FSD
8h 16m
2 stops
Multiple Airlines Logo
2:16 pm - 1:09 pm
FSD
-
STL
22h 53m
1 stop
$299Multiple Airlines
Fri, Feb 27 - Sun, Mar 1
United Airlines Logo
2:45 pm - 8:39 pm
STL
-
FSD
5h 54m
1 stop
United Airlines Logo
6:45 pm - 10:59 pm
FSD
-
STL
4h 14m
1 stop
$319United Airlines
Wed, Feb 25 - Sun, Mar 1
United Airlines Logo
6:05 pm - 11:44 pm
STL
-
FSD
5h 39m
1 stop
United Airlines Logo
6:35 pm - 9:08 pm
FSD
-
STL
26h 33m
1 stop
$352United Airlines
Fri, Apr 10 - Mon, Apr 13
United Airlines Logo
6:05 pm - 11:44 pm
STL
-
FSD
5h 39m
1 stop
United Airlines Logo
6:35 pm - 8:35 am
FSD
-
STL
14h 00m
1 stop
$389United Airlines
Fri, Apr 10 - Mon, Apr 13
United Airlines Logo
6:05 pm - 11:44 pm
STL
-
FSD
5h 39m
1 stop
United Airlines Logo
4:57 pm - 9:08 pm
FSD
-
STL
28h 11m
2 stops
$403United Airlines
Fri, Apr 10 - Mon, Apr 13
Multiple Airlines Logo
3:49 pm - 11:13 am
STL
-
FSD
19h 24m
1 stop
Multiple Airlines Logo
1:59 pm - 1:56 pm
FSD
-
STL
23h 57m
1 stop
$439Multiple Airlines
Mon, Feb 23 - Fri, Feb 27

Delta flights from St. Louis to Sioux Falls

Our best Delta deals on St. Louis to Sioux Falls flight tickets
Delta
Mar 19
STL6:29 amLambert-St Louis
3h 52m
1 stop
FSD10:21 amSioux Falls Joe Foss Field
Mar 22
FSD5:00 amSioux Falls Joe Foss Field
4h 01m
1 stop
STL9:01 amLambert-St Louis
$249
Delta
Feb 24
STL5:29 pmLambert-St Louis
5h 26m
1 stop
FSD10:55 pmSioux Falls Joe Foss Field
Feb 28
FSD10:50 amSioux Falls Joe Foss Field
4h 04m
1 stop
STL2:54 pmLambert-St Louis
$259
Delta
Feb 26
STL6:10 amLambert-St Louis
3h 58m
1 stop
FSD10:08 amSioux Falls Joe Foss Field
Feb 28
FSD10:50 amSioux Falls Joe Foss Field
4h 04m
1 stop
STL2:54 pmLambert-St Louis
$269

United Airlines flights from St. Louis to Sioux Falls

Our best United Airlines deals on St. Louis to Sioux Falls flight tickets
United Airlines
Feb 27
STL2:45 pmLambert-St Louis
5h 54m
1 stop
FSD8:39 pmSioux Falls Joe Foss Field
Mar 1
FSD6:45 pmSioux Falls Joe Foss Field
4h 14m
1 stop
STL10:59 pmLambert-St Louis
$254
United Airlines
Feb 20
STL7:41 amLambert-St Louis
6h 59m
1 stop
FSD2:40 pmSioux Falls Joe Foss Field
Feb 22
FSD9:00 amSioux Falls Joe Foss Field
7h 58m
1 stop
STL4:58 pmLambert-St Louis
$299
United Airlines
Feb 25
STL2:45 pmLambert-St Louis
5h 54m
1 stop
FSD8:39 pmSioux Falls Joe Foss Field
Mar 1
FSD6:45 pmSioux Falls Joe Foss Field
4h 14m
1 stop
STL10:59 pmLambert-St Louis
$319

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 February 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

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Thu 3/19

6:29 am-10:21 am

1 stop3h 52m

Sioux Falls Joe Foss Field

Sun 3/22

5:00 am-9:01 am

1 stop4h 01m

$249

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 2/27

2:45 pm-8:39 pm

1 stop5h 54m

Sioux Falls Joe Foss Field

Sun 3/1

6:45 pm-10:59 pm

1 stop4h 14m

$254

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Tue 2/24

5:29 pm-10:55 pm

1 stop5h 26m

Sioux Falls Joe Foss Field

Sat 2/28

10:50 am-2:54 pm

1 stop4h 04m

$259

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Thu 2/26

6:10 am-10:08 am

1 stop3h 58m

Sioux Falls Joe Foss Field

Sat 2/28

10:50 am-2:54 pm

1 stop4h 04m

$269

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 2/27

9:50 am-6:06 pm

2 stops8h 16m

Sioux Falls Joe Foss Field

Sun 3/1

2:16 pm-1:09 pm

1 stop22h 53m

$299

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Wed 2/25

2:45 pm-8:39 pm

1 stop5h 54m

Sioux Falls Joe Foss Field

Sun 3/1

6:45 pm-10:59 pm

1 stop4h 14m

$319

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 4/10

6:05 pm-11:44 pm

1 stop5h 39m

Sioux Falls Joe Foss Field

Mon 4/13

6:35 pm-9:08 pm

1 stop26h 33m

$352

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 4/10

6:05 pm-11:44 pm

1 stop5h 39m

Sioux Falls Joe Foss Field

Mon 4/13

6:35 pm-8:35 am

1 stop14h 00m

$389

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 4/10

6:05 pm-11:44 pm

1 stop5h 39m

Sioux Falls Joe Foss Field

Mon 4/13

4:57 pm-9:08 pm

2 stops28h 11m

$403

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Mon 2/23

3:49 pm-11:13 am

1 stop19h 24m

Sioux Falls Joe Foss Field

Fri 2/27

1:59 pm-1:56 pm

1 stop23h 57m

$439

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 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 52m

Direct flights

None
The fastest flight from St. Louis to Sioux Falls takes 3h 52m
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 52m.

  • 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 $218Free CancellationRating
7.9
8,179 reviews
Search Delta flights
American AirlinesPriceFrom $228Free CancellationRating
7.2
11,267 reviews
Search American Airlines flights
United AirlinesPriceFrom $253Free CancellationRating
7.4
9,276 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.

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

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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