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 4/16. 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.
Delta Logo
6:10 am - 10:08 am
STL
-
FSD
3h 58m
1 stop
Delta Logo
8:05 am - 11:39 am
FSD
-
STL
3h 34m
1 stop
$249Delta
Thu, Apr 16 - Sun, Apr 19
Delta Logo
9:25 am - 12:58 pm
STL
-
FSD
3h 33m
1 stop
Delta Logo
8:05 am - 11:39 am
FSD
-
STL
3h 34m
1 stop
$269Delta
Fri, Apr 24 - Tue, Apr 28
American Airlines Logo
8:00 am - 1:36 pm
STL
-
FSD
5h 36m
1 stop
American Airlines Logo
2:06 pm - 9:11 pm
FSD
-
STL
7h 05m
1 stop
$274American Airlines
Thu, Mar 19 - Wed, Mar 25
Delta Logo
3:05 pm - 7:20 pm
STL
-
FSD
4h 15m
1 stop
Delta Logo
8:00 am - 11:48 am
FSD
-
STL
3h 48m
1 stop
$288Delta
Fri, Mar 20 - Sun, Mar 22
United Airlines Logo
11:25 am - 5:21 pm
STL
-
FSD
5h 56m
1 stop
United Airlines Logo
1:40 pm - 8:26 pm
FSD
-
STL
6h 46m
1 stop
$309United Airlines
Wed, Feb 18 - Sat, Feb 21
United Airlines Logo
6:30 am - 10:47 am
STL
-
FSD
4h 17m
1 stop
United Airlines Logo
3:11 pm - 7:27 pm
FSD
-
STL
4h 16m
1 stop
$319United Airlines
Tue, Jan 27 - Sat, Jan 31
American Airlines Logo
6:00 am - 11:42 am
STL
-
FSD
5h 42m
1 stop
American Airlines Logo
7:44 pm - 11:48 pm
FSD
-
STL
4h 04m
1 stop
$344American Airlines
Fri, May 8 - Mon, May 11
American Airlines Logo
8:13 am - 9:35 pm
STL
-
FSD
13h 22m
2 stops
American Airlines Logo
6:00 am - 10:20 am
FSD
-
STL
4h 20m
1 stop
$447American Airlines
Tue, Jan 27 - Sat, Jan 31
American Airlines Logo
5:45 am - 11:46 am
STL
-
FSD
6h 01m
1 stop
American Airlines Logo
5:34 pm - 11:44 pm
FSD
-
STL
6h 10m
1 stop
$475American Airlines
Tue, Jun 9 - Fri, Jun 12
United Airlines Logo
6:00 pm - 2:40 pm
STL
-
FSD
20h 40m
2 stops
United Airlines Logo
1:40 pm - 8:26 pm
FSD
-
STL
6h 46m
1 stop
$492United Airlines
Wed, Feb 18 - Sat, Feb 21

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 23
STL5:20 amLambert-St Louis
7h 41m
1 stop
FSD1:01 pmSioux Falls Joe Foss Field
Apr 29
FSD7:00 amSioux Falls Joe Foss Field
4h 19m
1 stop
STL11:19 amLambert-St Louis
$249
American Airlines
Mar 19
STL8:00 amLambert-St Louis
5h 36m
1 stop
FSD1:36 pmSioux Falls Joe Foss Field
Mar 25
FSD2:06 pmSioux Falls Joe Foss Field
7h 05m
1 stop
STL9:11 pmLambert-St Louis
$274
American Airlines
Jan 17
STL5:04 pmLambert-St Louis
5h 00m
1 stop
FSD10:04 pmSioux Falls Joe Foss Field
Jan 19
FSD5:35 pmSioux Falls Joe Foss Field
5h 24m
1 stop
STL10:59 pmLambert-St Louis
$339

United Airlines flights from St. Louis to Sioux Falls

Our best United Airlines deals on St. Louis to Sioux Falls flight tickets
United Airlines
Jan 27
STL11:20 amLambert-St Louis
5h 58m
1 stop
FSD5:18 pmSioux Falls Joe Foss Field
Jan 31
FSD7:30 amSioux Falls Joe Foss Field
6h 58m
1 stop
STL2:28 pmLambert-St Louis
$259
United Airlines
Feb 18
STL11:25 amLambert-St Louis
5h 56m
1 stop
FSD5:21 pmSioux Falls Joe Foss Field
Feb 21
FSD1:40 pmSioux Falls Joe Foss Field
6h 46m
1 stop
STL8:26 pmLambert-St Louis
$309
United Airlines
Jan 27
STL6:30 amLambert-St Louis
4h 17m
1 stop
FSD10:47 amSioux Falls Joe Foss Field
Jan 31
FSD3:11 pmSioux Falls Joe Foss Field
4h 16m
1 stop
STL7:27 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 January 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

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Thu 4/16

6:10 am-10:08 am

1 stop3h 58m

Sioux Falls Joe Foss Field

Sun 4/19

8:05 am-11:39 am

1 stop3h 34m

$249

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 4/24

9:25 am-12:58 pm

1 stop3h 33m

Sioux Falls Joe Foss Field

Tue 4/28

8:05 am-11:39 am

1 stop3h 34m

$269

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Thu 3/19

8:00 am-1:36 pm

1 stop5h 36m

Sioux Falls Joe Foss Field

Wed 3/25

2:06 pm-9:11 pm

1 stop7h 05m

$274

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 3/20

3:05 pm-7:20 pm

1 stop4h 15m

Sioux Falls Joe Foss Field

Sun 3/22

8:00 am-11:48 am

1 stop3h 48m

$288

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Wed 2/18

11:25 am-5:21 pm

1 stop5h 56m

Sioux Falls Joe Foss Field

Sat 2/21

1:40 pm-8:26 pm

1 stop6h 46m

$309

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Tue 1/27

6:30 am-10:47 am

1 stop4h 17m

Sioux Falls Joe Foss Field

Sat 1/31

3:11 pm-7:27 pm

1 stop4h 16m

$319

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 5/8

6:00 am-11:42 am

1 stop5h 42m

Sioux Falls Joe Foss Field

Mon 5/11

7:44 pm-11:48 pm

1 stop4h 04m

$344

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Tue 1/27

8:13 am-9:35 pm

2 stops13h 22m

Sioux Falls Joe Foss Field

Sat 1/31

6:00 am-10:20 am

1 stop4h 20m

$447

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Tue 6/9

5:45 am-11:46 am

1 stop6h 01m

Sioux Falls Joe Foss Field

Fri 6/12

5:34 pm-11:44 pm

1 stop6h 10m

$475

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Wed 2/18

6:00 pm-2:40 pm

2 stops20h 40m

Sioux Falls Joe Foss Field

Sat 2/21

1:40 pm-8:26 pm

1 stop6h 46m

$492

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 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 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 58m

Direct flights

None
The fastest flight from St. Louis to Sioux Falls takes 3h 58m
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 58m.

  • 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
11,119 reviews
Search American Airlines flights
DeltaPriceFrom $218Free CancellationRating
7.9
8,040 reviews
Search Delta flights
United AirlinesPriceFrom $253Free CancellationRating
7.4
9,156 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 2/12
Thu 2/19
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States