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St. Louis

$249+ Cheap flights from South Dakota to St. Louis (STL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — STL
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
1 adult, Economy
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Cheap flight deals from South Dakota to St. Louis

Cheapest flights from South Dakota to St. Louis
Explore the most affordable flight options available from South Dakota to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 20, 2026.

This American Airlines deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/197:42 pm
FSD
-
STL
1 stop4h 06m
American Airlines
Sat 2/218:00 am
STL
-
FSD
1 stop5h 33m
American Airlines
Deal found 1/18$249
This Kiwi.com deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/152:16 pm
FSD
-
STL
1 stop22h 53m
Frontier
Wed 2/184:51 pm
STL
-
FSD
1 stop20h 30m
Frontier
Deal found 1/19$265
This American Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/115:38 pm
FSD
-
STL
1 stop5h 21m
American Airlines
Sun 2/226:38 pm
STL
-
FSD
1 stop4h 25m
American Airlines
Deal found 1/20$274
This American Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/35:35 pm
FSD
-
STL
1 stop5h 24m
American Airlines
Sat 2/711:55 am
STL
-
FSD
1 stop4h 58m
American Airlines
Deal found 1/19$279
This Delta deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/34:10 pm
RAP
-
STL
1 stop6h 15m
Delta
Sat 2/76:10 am
STL
-
RAP
1 stop5h 01m
Delta
Deal found 1/19$279
This United Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/35:10 am
RAP
-
STL
2 stops8h 20m
United Airlines
Sat 2/79:57 am
STL
-
RAP
2 stops8h 15m
United Airlines
Deal found 1/19$290
This Delta deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/34:01 pm
RAP
-
STL
1 stop6h 24m
Delta
Sun 4/59:45 am
STL
-
RAP
1 stop6h 33m
Delta
Deal found 1/20$354
This Kiwi.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/152:16 pm
FSD
-
STL
1 stop22h 53m
Multiple Airlines
Fri 2/209:50 am
STL
-
FSD
2 stops8h 22m
Multiple Airlines
Deal found 1/20$359
This Delta deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/64:00 pm
RAP
-
STL
1 stop6h 12m
Delta
Sat 5/165:30 pm
STL
-
RAP
1 stop5h 28m
Delta
Deal found 1/18$359
This United Airlines deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/239:00 am
FSD
-
STL
1 stop7h 55m
United Airlines
Sat 1/246:30 am
STL
-
FSD
1 stop4h 17m
United Airlines
Deal found 1/17$369
This United Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/2312:35 pm
RAP
-
STL
1 stop7h 23m
United Airlines
Sun 1/258:45 am
STL
-
RAP
1 stop5h 27m
United Airlines
Deal found 1/19$369
This United Airlines deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2812:35 pm
RAP
-
STL
1 stop7h 23m
United Airlines
Sat 1/314:15 pm
STL
-
RAP
1 stop7h 14m
United Airlines
Deal found 1/17$379

Find flight deals from South Dakota to St. Louis

Keep the following information in mind while searching for South Dakota to St. Louis flight deals. Data was last updated January 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$249
(American Airlines)

Popular in

July

Cheapest in

August

Average price

$349
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Lambert-St Louis flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Lambert-St Louis flights.
Search Deals
From South Dakota to Lambert-St Louis
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from South Dakota to St. Louis 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, Cheapflights users made 2,558,603 searches. Data last updated January 20, 2026.
Use the filters below to find and compare flights from South Dakota to St. Louis that are best for you.

Fly from

South Dakota

Fly to

St. Louis

Route

Depart

Return

Price

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Thu 2/19

7:42 pm-11:48 pm

1 stop4h 06m

Lambert-St Louis

Sat 2/21

8:00 am-1:33 pm

1 stop5h 33m

$249

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Sat 3/14

9:50 am-2:24 pm

1 stop4h 34m

Lambert-St Louis

Fri 3/20

5:25 pm-11:04 pm

1 stop5h 39m

$249

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Thu 3/5

7:42 pm-11:48 pm

1 stop4h 06m

Lambert-St Louis

Sat 3/7

5:12 am-12:42 pm

1 stop7h 30m

$249

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Thu 2/26

7:42 pm-11:48 pm

1 stop4h 06m

Lambert-St Louis

Sat 2/28

8:00 am-1:33 pm

1 stop5h 33m

$249

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Tue 2/17

5:31 pm-11:22 pm

1 stop5h 51m

Lambert-St Louis

Tue 2/24

4:13 pm-9:40 pm

1 stop5h 27m

$249

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Sun 2/15

2:16 pm-1:09 pm

1 stop22h 53m

Lambert-St Louis

Wed 2/18

4:51 pm-1:21 pm

1 stop20h 30m

$265

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Wed 2/11

5:38 pm-10:59 pm

1 stop5h 21m

Lambert-St Louis

Sun 2/22

6:38 pm-11:03 pm

1 stop4h 25m

$274

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Thu 2/19

7:42 pm-11:48 pm

1 stop4h 06m

Lambert-St Louis

Sun 2/22

6:00 am-11:42 am

1 stop5h 42m

$274

Rapid CitySt. Louis

RAP - STL

RAPSTL

Rapid City

Tue 2/3

4:10 pm-11:25 pm

1 stop6h 15m

Lambert-St Louis

Sat 2/7

6:10 am-10:11 am

1 stop5h 01m

$279

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Tue 2/3

5:35 pm-10:59 pm

1 stop5h 24m

Lambert-St Louis

Sat 2/7

11:55 am-4:53 pm

1 stop4h 58m

$279

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 20 results
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Best time to book a flight from South Dakota to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from South Dakota with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from South Dakota to St. Louis

What is the cheapest month to book a flight from South Dakota to St. Louis?

Currently, May is the cheapest month in which you can book a flight from South Dakota to St. Louis (average of $188). Flying from South Dakota to St. Louis in November is currently the most expensive (average of $378). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from South Dakota to St. Louis?

Related info for your journey

Find useful and relevant information for your journey from South Dakota to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to St. Louis from South Dakota?

    If you book a flight to St. Louis from South Dakota, you will be flying to Lambert-St Louis, which is the city’s only airport. Lambert-St Louis (STL) is located 12.7 mi from the center of St. Louis.

  • How long is the flight from South Dakota to St. Louis?

    Departing from South Dakota to St. Louis will take you 4h 06m. Airlines will cover a distance of 470 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from South Dakota to St. Louis that include hotel bookings?

    Yes. In addition to deals on South Dakota to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from South Dakota to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from South Dakota to St. Louis.

  • Can I find deals for business class flights from South Dakota to St. Louis?

    Yes. Cheapflights offers flight deals from South Dakota to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from South Dakota to St. Louis?

    Currently, May is the cheapest month in which you can book a flight from South Dakota to St. Louis (average of $188). Flying from South Dakota to St. Louis in November is currently the most expensive (average of $378). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
Chesterfield
Alton
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for South Dakota to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from South Dakota to St. Louis

Discover the top 3 airlines that operate flights from South Dakota to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$174Average$296FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$243Average$289FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$264Average$366FlexibilityNo cancel feeOn-time69%

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