Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

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 2/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from St. Louis to Sioux Falls

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
9:37 am - 1:36 pm
STL
-
FSD
3h 59m
1 stop
American Airlines Logo
2:07 pm - 9:12 pm
FSD
-
STL
7h 05m
1 stop
$249American Airlines
Thu, Feb 19 - Sat, Feb 21
Delta Logo
11:23 am - 3:34 pm
STL
-
FSD
4h 11m
1 stop
Delta Logo
10:50 am - 2:54 pm
FSD
-
STL
4h 04m
1 stop
$259Delta
Tue, Feb 10 - Sat, Feb 14
American Airlines Logo
6:36 pm - 11:03 pm
STL
-
FSD
4h 27m
1 stop
American Airlines Logo
5:19 pm - 11:22 pm
FSD
-
STL
6h 03m
1 stop
$274American Airlines
Mon, Feb 23 - Sat, Feb 28
Delta Logo
5:48 pm - 11:04 pm
STL
-
FSD
5h 16m
1 stop
Delta Logo
6:25 am - 10:43 am
FSD
-
STL
4h 18m
1 stop
$279Delta
Sun, Feb 1 - Sun, Feb 8
American Airlines Logo
11:55 am - 4:59 pm
STL
-
FSD
5h 04m
1 stop
American Airlines Logo
5:35 pm - 10:59 pm
FSD
-
STL
5h 24m
1 stop
$309American Airlines
Sat, Jan 31 - Mon, Feb 2
United Airlines Logo
2:45 pm - 8:39 pm
STL
-
FSD
5h 54m
1 stop
United Airlines Logo
3:15 pm - 9:05 pm
FSD
-
STL
5h 50m
1 stop
$314United Airlines
Wed, Feb 18 - Sat, Feb 21
United Airlines Logo
6:00 pm - 11:44 pm
STL
-
FSD
5h 44m
1 stop
United Airlines Logo
3:11 pm - 9:13 pm
FSD
-
STL
6h 02m
1 stop
$319United Airlines
Fri, Jan 30 - Sat, Jan 31
Multiple Airlines Logo
9:50 am - 6:12 pm
STL
-
FSD
8h 22m
2 stops
Multiple Airlines Logo
2:16 pm - 1:09 pm
FSD
-
STL
22h 53m
1 stop
$327Multiple Airlines
Mon, Feb 23 - Sun, Mar 1
United Airlines Logo
2:45 pm - 8:39 pm
STL
-
FSD
5h 54m
1 stop
United Airlines Logo
3:15 pm - 9:05 pm
FSD
-
STL
5h 50m
1 stop
$344United Airlines
Wed, Feb 18 - Sat, Feb 21
Delta Logo
6:29 am - 12:53 pm
STL
-
FSD
6h 24m
1 stop
Delta Logo
8:00 am - 11:48 am
FSD
-
STL
3h 48m
1 stop
$359Delta
Thu, Mar 19 - Sun, Mar 22

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 18
STL2:45 pmLambert-St Louis
5h 54m
1 stop
FSD8:39 pmSioux Falls Joe Foss Field
Feb 21
FSD3:15 pmSioux Falls Joe Foss Field
5h 50m
1 stop
STL9:05 pmLambert-St Louis
$314
United Airlines
Feb 18
STL2:45 pmLambert-St Louis
5h 54m
1 stop
FSD8:39 pmSioux Falls Joe Foss Field
Feb 21
FSD3:15 pmSioux Falls Joe Foss Field
5h 50m
1 stop
STL9:05 pmLambert-St Louis
$344
United Airlines
Feb 18
STL2:45 pmLambert-St Louis
5h 54m
1 stop
FSD8:39 pmSioux Falls Joe Foss Field
Feb 21
FSD3:15 pmSioux Falls Joe Foss Field
5h 50m
1 stop
STL9:05 pmLambert-St Louis
$384

Delta flights from St. Louis to Sioux Falls

Our best Delta deals on St. Louis to Sioux Falls flight tickets
Delta
Feb 10
STL11:23 amLambert-St Louis
4h 11m
1 stop
FSD3:34 pmSioux Falls Joe Foss Field
Feb 14
FSD10:50 amSioux Falls Joe Foss Field
4h 04m
1 stop
STL2:54 pmLambert-St Louis
$259
Delta
Feb 7
STL11:23 amLambert-St Louis
4h 11m
1 stop
FSD3:34 pmSioux Falls Joe Foss Field
Feb 8
FSD6:25 amSioux Falls Joe Foss Field
4h 18m
1 stop
STL10:43 amLambert-St Louis
$279
Delta
Jan 30
STL6:10 amLambert-St Louis
6h 12m
1 stop
FSD12:22 pmSioux Falls Joe Foss Field
Jan 31
FSD6:25 amSioux Falls Joe Foss Field
4h 18m
1 stop
STL10:43 amLambert-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 January 27, 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 2/19

9:37 am-1:36 pm

1 stop3h 59m

Sioux Falls Joe Foss Field

Sat 2/21

2:07 pm-9:12 pm

1 stop7h 05m

$249

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Tue 2/10

11:23 am-3:34 pm

1 stop4h 11m

Sioux Falls Joe Foss Field

Sat 2/14

10:50 am-2:54 pm

1 stop4h 04m

$259

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Mon 2/23

6:36 pm-11:03 pm

1 stop4h 27m

Sioux Falls Joe Foss Field

Sat 2/28

5:19 pm-11:22 pm

1 stop6h 03m

$274

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Sun 2/1

5:48 pm-11:04 pm

1 stop5h 16m

Sioux Falls Joe Foss Field

Sun 2/8

6:25 am-10:43 am

1 stop4h 18m

$279

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Sat 1/31

11:55 am-4:59 pm

1 stop5h 04m

Sioux Falls Joe Foss Field

Mon 2/2

5:35 pm-10:59 pm

1 stop5h 24m

$309

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Wed 2/18

2:45 pm-8:39 pm

1 stop5h 54m

Sioux Falls Joe Foss Field

Sat 2/21

3:15 pm-9:05 pm

1 stop5h 50m

$314

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 1/30

6:00 pm-11:44 pm

1 stop5h 44m

Sioux Falls Joe Foss Field

Sat 1/31

3:11 pm-9:13 pm

1 stop6h 02m

$319

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Mon 2/23

9:50 am-6:12 pm

2 stops8h 22m

Sioux Falls Joe Foss Field

Sun 3/1

2:16 pm-1:09 pm

1 stop22h 53m

$327

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Wed 2/18

2:45 pm-8:39 pm

1 stop5h 54m

Sioux Falls Joe Foss Field

Sat 2/21

3:15 pm-9:05 pm

1 stop5h 50m

$344

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Thu 3/19

6:29 am-12:53 pm

1 stop6h 24m

Sioux Falls Joe Foss Field

Sun 3/22

8:00 am-11:48 am

1 stop3h 48m

$359

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 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 $241, 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 May is your next best option. Flight prices from St. Louis to Sioux Falls during May average around $293.

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 37m

Direct flights

None
The fastest flight from St. Louis to Sioux Falls takes 3h 37m
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 37m.

  • 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
11,197 reviews
Search American Airlines flights
DeltaPriceFrom $218Free CancellationRating
7.9
8,118 reviews
Search Delta flights
United AirlinesPriceFrom $253Free CancellationRating
7.4
9,205 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.

An easier way to manage your Sioux Falls trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 2/26
Thu 3/5
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States