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Sioux Falls

$111+ Cheap flights from St. Louis to Sioux Falls (STL - FSD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FSD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from St. Louis to Sioux Falls

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Sioux Falls (FSD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$186
(Booking.com)

One-way from

$111
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$308
From Lambert-St Louis to Sioux Falls Joe Foss Field
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One-way flight from Lambert-St Louis to Sioux Falls Joe Foss Field
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Highest demand for flights based on searches. 13% potential increase in price ($53 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from St. Louis to Sioux Falls

Cheapest flights from St. Louis to Sioux Falls
Explore the most affordable flight options available from St. Louis to Sioux Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Booking.com deal was found by Cheapflights users on 9/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:55 pmSTL - FSD
1 stop18h 14mFrontier
Sun 10/52:54 pmFSD - STL
1 stop18h 12mFrontier
Deal found 9/11$186
This United Airlines deal was found by Cheapflights users on 9/11. 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 9/265:15 amSTL - FSD
1 stop5h 25mUnited Airlines
Tue 9/309:30 amFSD - STL
1 stop7h 02mUnited Airlines
Deal found 9/11$239
This American Airlines deal was found by Cheapflights users on 9/11. 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 11/67:58 pmSTL - FSD
1 stop4h 01mAmerican Airlines
Sat 11/87:16 pmFSD - STL
1 stop4h 40mAmerican Airlines
Deal found 9/11$249
This Delta deal was found by Cheapflights users on 9/11. 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.
Sat 9/205:05 pmSTL - FSD
1 stop5h 39mDelta
Wed 9/245:00 amFSD - STL
1 stop6h 30mDelta
Deal found 9/11$269
This United Airlines deal was found by Cheapflights users on 9/9. 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 9/124:40 pmSTL - FSD
1 stop7h 00mUnited Airlines
Fri 9/192:08 pmFSD - STL
1 stop6h 38mUnited Airlines
Deal found 9/9$279
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Fri 11/1412:09 pmSTL - FSD
1 stop23h 31mMultiple Airlines
Sun 11/162:23 pmFSD - STL
1 stop18h 44mMultiple Airlines
Deal found 9/9$287
This American Airlines deal was found by Cheapflights users on 9/10. 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 9/256:05 amSTL - FSD
1 stop5h 43mAmerican Airlines
Mon 9/296:00 pmFSD - STL
1 stop5h 48mAmerican Airlines
Deal found 9/10$289
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 10/248:05 pmSTL - FSD
1 stop15h 56mAmerican Airlines
Fri 10/311:32 pmFSD - STL
1 stop4h 50mAmerican Airlines
Deal found 9/9$293
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Fri 10/2410:59 pmSTL - FSD
2 stops35h 52mMultiple Airlines
Fri 10/312:32 pmFSD - STL
1 stop18h 35mMultiple Airlines
Deal found 9/9$295
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Thu 9/2510:35 amSTL - FSD
2 stops32h 12mMultiple Airlines
Mon 9/292:54 pmFSD - STL
1 stop18h 12mMultiple Airlines
Deal found 9/10$297
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 9/258:00 amSTL - FSD
1 stop6h 37mUnited Airlines
Mon 9/293:12 pmFSD - STL
1 stop4h 30mUnited Airlines
Deal found 9/10$299

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from St. Louis to Sioux Falls that are best for you.

Fly from

St. Louis

Fly to

Sioux Falls

Route

Depart

Return

Price

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 9/26

5:15 am-10:40 am

1 stop5h 25m

Sioux Falls Joe Foss Field

Tue 9/30

9:30 am-4:32 pm

1 stop7h 02m

$239

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Thu 11/6

7:58 pm-11:59 pm

1 stop4h 01m

Sioux Falls Joe Foss Field

Sat 11/8

7:16 pm-11:56 pm

1 stop4h 40m

$249

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Sat 9/20

5:05 pm-10:44 pm

1 stop5h 39m

Sioux Falls Joe Foss Field

Wed 9/24

5:00 am-11:30 am

1 stop6h 30m

$269

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Sat 9/20

6:00 am-10:07 am

1 stop4h 07m

Sioux Falls Joe Foss Field

Tue 9/23

5:00 am-8:37 am

1 stop3h 37m

$269

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Sat 9/20

5:05 pm-10:44 pm

1 stop5h 39m

Sioux Falls Joe Foss Field

Thu 9/25

5:46 pm-11:09 pm

1 stop5h 23m

$269

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Thu 9/25

6:05 am-11:48 am

1 stop5h 43m

Sioux Falls Joe Foss Field

Mon 9/29

6:00 pm-11:48 pm

1 stop5h 48m

$289

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 10/24

8:05 pm-12:01 pm

1 stop15h 56m

Sioux Falls Joe Foss Field

Fri 10/31

1:32 pm-6:22 pm

1 stop4h 50m

$293

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 10/24

10:59 pm-10:51 am

2 stops35h 52m

Sioux Falls Joe Foss Field

Fri 10/31

2:32 pm-9:07 am

1 stop18h 35m

$295

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Thu 9/25

10:35 am-6:47 pm

2 stops32h 12m

Sioux Falls Joe Foss Field

Mon 9/29

2:54 pm-9:06 am

1 stop18h 12m

$297

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Thu 9/25

8:00 am-2:37 pm

1 stop6h 37m

Sioux Falls Joe Foss Field

Mon 9/29

3:12 pm-7:42 pm

1 stop4h 30m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 21 results
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Best time to book a flight from St. Louis to Sioux Falls

Have a flexible travel schedule? Discover the best time to fly to Sioux Falls from St. Louis 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 St. Louis to Sioux Falls

What is the cheapest month to book a flight from St. Louis to Sioux Falls?

Currently, September is the cheapest month in which you can book a flight from St. Louis to Sioux Falls (average of $334). Flying from St. Louis to Sioux Falls in December is currently the most expensive (average of $446). 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.

What is the cheapest time of day to fly from STL to FSD?

Find hourly flight availability from St. Louis to Sioux Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

It’s optimal to fly from St. Louis to Sioux Falls in the afternoon. By choosing this option you can save up to 52% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Sioux Falls

Get insights into the airlines that provide service to Sioux Falls. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sioux Falls. Reviews last updated September 11, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from St. Louis to Sioux Falls to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

  • How long is the flight from St. Louis to Sioux Falls?

    A quick flight from St. Louis to Sioux Falls can take about 4h 01m. United Airlines provides one of the quickest options available for as low as $249. The distance between St. Louis and Sioux Falls is about 470 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from St. Louis to Sioux Falls round-trip?

    According to our current data, American Airlines ($213), Delta ($218), and United Airlines ($245) offers the cheapest pricing from St. Louis to Sioux Falls. American Airlines is 36% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

  • How can I find direct flights from St. Louis to Sioux Falls?

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

  • Can I find deals for business class flights from St. Louis to Sioux Falls?

    Yes. Cheapflights offers flight deals from St. Louis to Sioux Falls 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 St. Louis to Sioux Falls?

    Currently, September is the cheapest month in which you can book a flight from St. Louis to Sioux Falls (average of $334). Flying from St. Louis to Sioux Falls in December is currently the most expensive (average of $446). 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 Sioux Falls?

Book flights to Sioux Falls if you plan to visit one of these locations
Marshall

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Alternative routes for St. Louis to Sioux Falls

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

Discover the top 3 airlines that operate flights from St. Louis to Sioux Falls. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$213Average$353FlexibilityNo cancel feeOn-time71%
DeltaCheapest$218Average$290FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$245Average$344FlexibilityNo cancel feeOn-time69%

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