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Cheap flights from St. Louis to Sioux Falls from $135

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 8/20. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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
6:30 am - 12:11 pm
STL
-
FSD
5h 41m
1 stop
Delta Logo
5:15 am - 8:48 am
FSD
-
STL
3h 33m
1 stop
$280Delta
Wed, Nov 25 - Sun, Nov 29
American Airlines Logo
8:07 pm - 12:30 am
STL
-
FSD
4h 23m
1 stop
American Airlines Logo
12:57 pm - 11:58 pm
FSD
-
STL
11h 01m
2 stops
$285American Airlines
Thu, Aug 20 - Sat, Aug 22
American Airlines Logo
5:43 am - 12:16 pm
STL
-
FSD
6h 33m
1 stop
American Airlines Logo
5:59 pm - 11:43 pm
FSD
-
STL
5h 44m
1 stop
$289American Airlines
Thu, Sep 17 - Mon, Sep 21
American Airlines Logo
8:07 pm - 12:30 am
STL
-
FSD
4h 23m
1 stop
American Airlines Logo
12:57 pm - 6:05 pm
FSD
-
STL
5h 08m
1 stop
$299American Airlines
Fri, Aug 21 - Fri, Aug 28
United Airlines Logo
5:59 pm - 11:31 pm
STL
-
FSD
5h 32m
1 stop
United Airlines Logo
7:35 am - 12:11 pm
FSD
-
STL
4h 36m
1 stop
$304United Airlines
Sat, Aug 8 - Sun, Aug 9
Delta Logo
5:34 pm - 10:51 pm
STL
-
FSD
5h 17m
1 stop
Delta Logo
5:00 am - 8:37 am
FSD
-
STL
3h 37m
1 stop
$314Delta
Sun, Aug 16 - Sun, Aug 23
United Airlines Logo
5:59 pm - 11:31 pm
STL
-
FSD
5h 32m
1 stop
United Airlines Logo
7:35 am - 12:11 pm
FSD
-
STL
4h 36m
1 stop
$319United Airlines
Thu, Aug 6 - Sat, Aug 8
Frontier Logo
8:10 pm - 6:36 pm
STL
-
FSD
22h 26m
1 stop
Frontier Logo
7:31 pm - 9:40 am
FSD
-
STL
14h 09m
2 stops
$322Frontier
Thu, Sep 17 - Mon, Sep 21
United Airlines Logo
5:10 am - 10:50 am
STL
-
FSD
5h 40m
1 stop
United Airlines Logo
7:50 am - 12:15 pm
FSD
-
STL
4h 25m
1 stop
$338United Airlines
Sun, Oct 11 - Sun, Oct 18
United Airlines Logo
4:40 pm - 11:44 pm
STL
-
FSD
7h 04m
1 stop
United Airlines Logo
7:47 am - 12:03 pm
FSD
-
STL
4h 16m
1 stop
$341United Airlines
Wed, Aug 26 - Sat, Aug 29

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United Airlines flights from St. Louis to Sioux Falls

Our best United Airlines deals on St. Louis to Sioux Falls flight tickets
United Airlines
Aug 8
STL5:59 pmLambert-St Louis
5h 32m
1 stop
FSD11:31 pmSioux Falls Joe Foss Field
Aug 9
FSD7:35 amSioux Falls Joe Foss Field
4h 36m
1 stop
STL12:11 pmLambert-St Louis
$304
United Airlines
Aug 6
STL5:59 pmLambert-St Louis
5h 32m
1 stop
FSD11:31 pmSioux Falls Joe Foss Field
Aug 8
FSD7:35 amSioux Falls Joe Foss Field
4h 36m
1 stop
STL12:11 pmLambert-St Louis
$319
United Airlines
Oct 11
STL5:10 amLambert-St Louis
5h 40m
1 stop
FSD10:50 amSioux Falls Joe Foss Field
Oct 18
FSD7:50 amSioux Falls Joe Foss Field
4h 25m
1 stop
STL12:15 pmLambert-St Louis
$338

American Airlines flights from St. Louis to Sioux Falls

Our best American Airlines deals on St. Louis to Sioux Falls flight tickets
American Airlines
Aug 20
STL8:07 pmLambert-St Louis
4h 23m
1 stop
FSD12:30 amSioux Falls Joe Foss Field
Aug 22
FSD12:57 pmSioux Falls Joe Foss Field
7h 29m
1 stop
STL8:26 pmLambert-St Louis
$280
American Airlines
Aug 20
STL8:07 pmLambert-St Louis
4h 23m
1 stop
FSD12:30 amSioux Falls Joe Foss Field
Aug 22
FSD12:57 pmSioux Falls Joe Foss Field
11h 01m
2 stops
STL11:58 pmLambert-St Louis
$285
American Airlines
Sep 17
STL5:43 amLambert-St Louis
6h 33m
1 stop
FSD12:16 pmSioux Falls Joe Foss Field
Sep 21
FSD5:59 pmSioux Falls Joe Foss Field
5h 44m
1 stop
STL11:43 pmLambert-St Louis
$289

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 July 23, 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

Wed 11/25

6:30 am-12:11 pm

1 stop5h 41m

Sioux Falls Joe Foss Field

Sun 11/29

5:15 am-8:48 am

1 stop3h 33m

$280

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Thu 8/20

8:07 pm-12:30 am

1 stop4h 23m

Sioux Falls Joe Foss Field

Sat 8/22

12:57 pm-11:58 pm

2 stops11h 01m

$285

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Thu 9/17

5:43 am-12:16 pm

1 stop6h 33m

Sioux Falls Joe Foss Field

Mon 9/21

5:59 pm-11:43 pm

1 stop5h 44m

$289

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 8/21

8:07 pm-12:30 am

1 stop4h 23m

Sioux Falls Joe Foss Field

Fri 8/28

12:57 pm-6:05 pm

1 stop5h 08m

$299

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Sat 8/8

5:59 pm-11:31 pm

1 stop5h 32m

Sioux Falls Joe Foss Field

Sun 8/9

7:35 am-12:11 pm

1 stop4h 36m

$304
Quickest round-trip

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Sun 8/16

5:34 pm-10:51 pm

1 stop5h 17m

Sioux Falls Joe Foss Field

Sun 8/23

5:00 am-8:37 am

1 stop3h 37m

$314

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Thu 8/6

5:59 pm-11:31 pm

1 stop5h 32m

Sioux Falls Joe Foss Field

Sat 8/8

7:35 am-12:11 pm

1 stop4h 36m

$319

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Thu 9/17

8:10 pm-6:36 pm

1 stop22h 26m

Sioux Falls Joe Foss Field

Mon 9/21

7:31 pm-9:40 am

2 stops14h 09m

$322

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Sun 10/11

5:10 am-10:50 am

1 stop5h 40m

Sioux Falls Joe Foss Field

Sun 10/18

7:50 am-12:15 pm

1 stop4h 25m

$338

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Wed 8/26

4:40 pm-11:44 pm

1 stop7h 04m

Sioux Falls Joe Foss Field

Sat 8/29

7:47 am-12:03 pm

1 stop4h 16m

$341

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 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?

Prices are currently low for flights on this route.

Typical prices usually range from $430 to $486.
The lowest price recently found on this route was $280.

What is the cheapest month to fly to Sioux Falls?

The cheapest month to fly to Sioux Falls from St. Louis is in September. Flight prices, which tend to average around $297, are often lower during this time because this is during the off-season. If you’re not able to fly to Sioux Falls in September, then August is your next best option. Flight prices from St. Louis to Sioux Falls during August average around $344.

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

5h 32m

Direct flights

None
The fastest flight from St. Louis to Sioux Falls takes 5h 32m
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

Frequently asked questions about flying from St. Louis to Sioux Falls

  • 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 5h 32m.

  • 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 $198Free CancellationRating
7.8
8,479 reviews
Search Delta flights
American AirlinesPriceFrom $297Free CancellationRating
7.1
11,832 reviews
Search American Airlines flights
United AirlinesPriceFrom $298Free CancellationRating
7.4
10,024 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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