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Cheap flights from St. Louis to Sioux Falls from $238

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 1/26. 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.
United Airlines Logo
6:00 pm - 11:44 pm
STL
-
FSD
5h 44m1 stop
United Airlines Logo
6:45 pm - 10:59 pm
FSD
-
STL
4h 14m1 stop
$249United Airlines
Fri, Feb 20 - Sun, Feb 22
Multiple Airlines Logo
9:50 am - 6:12 pm
STL
-
FSD
8h 22m2 stops
Multiple Airlines Logo
2:16 pm - 1:09 pm
FSD
-
STL
22h 53m1 stop
$270Multiple Airlines
Fri, Feb 20 - Sun, Feb 22
United Airlines Logo
2:45 pm - 8:24 pm
STL
-
FSD
5h 39m1 stop
United Airlines Logo
1:40 pm - 8:58 pm
FSD
-
STL
7h 18m1 stop
$339United Airlines
Wed, Jan 7 - Sat, Jan 10
Multiple Airlines Logo
3:43 pm - 6:11 pm
STL
-
FSD
26h 28m2 stops
Multiple Airlines Logo
3:56 pm - 6:32 pm
FSD
-
STL
26h 36m1 stop
$355Multiple Airlines
Sun, Jan 11 - Thu, Jan 15
United Airlines Logo
2:45 pm - 8:24 pm
STL
-
FSD
5h 39m1 stop
United Airlines Logo
1:40 pm - 8:58 pm
FSD
-
STL
7h 18m1 stop
$369United Airlines
Wed, Jan 7 - Sat, Jan 10
Multiple Airlines Logo
9:46 pm - 8:41 pm
STL
-
FSD
22h 55m1 stop
Multiple Airlines Logo
3:56 pm - 6:32 pm
FSD
-
STL
26h 36m1 stop
$429Multiple Airlines
Sun, Jan 11 - Thu, Jan 15
United Airlines Logo
4:35 pm - 9:50 pm
STL
-
FSD
29h 15m3 stops
United Airlines Logo
1:40 pm - 8:58 pm
FSD
-
STL
7h 18m1 stop
$544United Airlines
Wed, Jan 7 - Sat, Jan 10
American Airlines Logo
7:00 am - 7:06 pm
STL
-
FSD
12h 06m2 stops
American Airlines Logo
7:00 am - 7:30 pm
FSD
-
STL
12h 30m2 stops
$586American Airlines
Fri, Feb 20 - Sun, Feb 22
United Airlines Logo
2:45 pm - 8:24 pm
STL
-
FSD
5h 39m1 stop
United Airlines Logo
9:00 am - 5:43 pm
FSD
-
STL
8h 43m2 stops
$632United Airlines
Wed, Jan 7 - Sat, Jan 10
United Airlines Logo
6:00 pm - 11:44 pm
STL
-
FSD
5h 44m1 stop
United Airlines Logo
6:00 am - 4:03 pm
FSD
-
STL
10h 03m2 stops
$672United Airlines
Wed, Jan 7 - Sat, Jan 10

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 20
STL6:00 pmLambert-St Louis
5h 44m
1 stop
FSD11:44 pmSioux Falls Joe Foss Field
Feb 22
FSD6:45 pmSioux Falls Joe Foss Field
4h 14m
1 stop
STL10:59 pmLambert-St Louis
$249
Find similar
United Airlines
Jan 5
STL6:30 amLambert-St Louis
4h 22m
1 stop
FSD10:52 amSioux Falls Joe Foss Field
Jan 12
FSD6:00 amSioux Falls Joe Foss Field
7h 16m
1 stop
STL1:16 pmLambert-St Louis
$339
Find similar
United Airlines
Jan 7
STL2:45 pmLambert-St Louis
5h 39m
1 stop
FSD8:24 pmSioux Falls Joe Foss Field
Jan 10
FSD1:40 pmSioux Falls Joe Foss Field
7h 18m
1 stop
STL8:58 pmLambert-St Louis
$369
Find similar

American Airlines flights from St. Louis to Sioux Falls

Our best American Airlines deals on St. Louis to Sioux Falls flight tickets
American Airlines
Dec 29
STL4:53 pmLambert-St Louis
7h 06m
1 stop
FSD11:59 pmSioux Falls Joe Foss Field
Jan 1
FSD7:11 amSioux Falls Joe Foss Field
6h 25m
1 stop
STL1:36 pmLambert-St Louis
$319
Find similar
American Airlines
Jan 5
STL4:53 pmLambert-St Louis
7h 08m
1 stop
FSD12:01 amSioux Falls Joe Foss Field
Jan 12
FSD6:00 amSioux Falls Joe Foss Field
12h 34m
2 stops
STL6:34 pmLambert-St Louis
$468
Find similar
American Airlines
Jan 5
STL4:53 pmLambert-St Louis
7h 08m
1 stop
FSD12:01 amSioux Falls Joe Foss Field
Jan 12
FSD6:00 amSioux Falls Joe Foss Field
12h 34m
2 stops
STL6:34 pmLambert-St Louis
$553
Find similar

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 December 28, 2025.
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

Fri 2/20

6:00 pm-11:44 pm

1 stop5h 44m

Sioux Falls Joe Foss Field

Sun 2/22

6:45 pm-10:59 pm

1 stop4h 14m

$249

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 2/20

9:50 am-6:12 pm

2 stops8h 22m

Sioux Falls Joe Foss Field

Sun 2/22

2:16 pm-1:09 pm

1 stop22h 53m

$270

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Wed 1/7

2:45 pm-8:24 pm

1 stop5h 39m

Sioux Falls Joe Foss Field

Sat 1/10

1:40 pm-8:58 pm

1 stop7h 18m

$339

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Sun 1/11

3:43 pm-6:11 pm

2 stops26h 28m

Sioux Falls Joe Foss Field

Thu 1/15

3:56 pm-6:32 pm

1 stop26h 36m

$355

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Wed 1/7

2:45 pm-8:24 pm

1 stop5h 39m

Sioux Falls Joe Foss Field

Sat 1/10

1:40 pm-8:58 pm

1 stop7h 18m

$369

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Sun 1/11

9:46 pm-8:41 pm

1 stop22h 55m

Sioux Falls Joe Foss Field

Thu 1/15

3:56 pm-6:32 pm

1 stop26h 36m

$429

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Wed 1/7

4:35 pm-9:50 pm

3 stops29h 15m

Sioux Falls Joe Foss Field

Sat 1/10

1:40 pm-8:58 pm

1 stop7h 18m

$544

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 2/20

7:00 am-7:06 pm

2 stops12h 06m

Sioux Falls Joe Foss Field

Sun 2/22

7:00 am-7:30 pm

2 stops12h 30m

$586

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Wed 1/7

2:45 pm-8:24 pm

1 stop5h 39m

Sioux Falls Joe Foss Field

Sat 1/10

9:00 am-5:43 pm

2 stops8h 43m

$632

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Wed 1/7

6:00 pm-11:44 pm

1 stop5h 44m

Sioux Falls Joe Foss Field

Sat 1/10

6:00 am-4:03 pm

2 stops10h 03m

$672

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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 February. Flight prices, which tend to average around $228, are often lower during this time because this is during the off-season. If you’re not able to fly to Sioux Falls in February, then January is your next best option. Flight prices from St. Louis to Sioux Falls during January average around $268.

What is the cheapest time of day to depart on your flight to Sioux Falls?

Our most recent data shows that the best time of day to fly to Sioux Falls is in the afternoon. Flights from St. Louis to Sioux Falls during this time can be as low as $298. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $614 on average. Flights to Sioux Falls from St. Louis at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

4h 22m

Direct flights

None
The fastest flight from St. Louis to Sioux Falls takes 4h 22m
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 4h 22m.

  • 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
American AirlinesPriceFrom $213Free CancellationRating
7.2
11,072 reviews
Search American Airlines flights
DeltaPriceFrom $216Free CancellationRating
7.9
8,019 reviews
Search Delta flights
United AirlinesPriceFrom $253Free CancellationRating
7.4
9,113 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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