HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sioux Falls

$174+ 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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FSD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St. Louis to Sioux Falls with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 June 12, 2025.

Round-trip from

$229
(Delta)

One-way from

$174
(Booking.com)

Popular in

June

Cheapest in

February

Average price

$437
From Lambert-St Louis to Sioux Falls Joe Foss Field
Search Deals
One-way flight from Lambert-St Louis to Sioux Falls Joe Foss Field
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 12, 2025.

This Delta deal was found by Cheapflights users on 6/11. 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.
Wed 8/136:00 amSTL - FSD
1 stop6h 15mDelta
Tue 8/1912:56 pmFSD - STL
1 stop3h 49mDelta
Deal found 6/11$229
This United Airlines deal was found by Cheapflights users on 6/10. 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 6/121:42 pmSTL - FSD
1 stop7h 26mUnited Airlines
Sat 6/149:25 amFSD - STL
1 stop7h 06mUnited Airlines
Deal found 6/10$289
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Fri 8/297:59 pmSTL - FSD
1 stop4h 29mAmerican Airlines
Sun 8/315:15 pmFSD - STL
1 stop5h 48mAmerican Airlines
Deal found 6/11$294
This Mytrip deal was found by Cheapflights users on 6/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/119:50 amSTL - FSD
2 stops9h 26mMultiple Airlines
Mon 7/148:06 pmFSD - STL
2 stops22h 35mMultiple Airlines
Deal found 6/9$354
This FlightHub deal was found by Cheapflights users on 6/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/108:44 pmSTL - FSD
2 stops21h 53mFrontier
Thu 7/172:57 pmFSD - STL
1 stop18h 14mFrontier
Deal found 6/11$412

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 June 12, 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

Wed 8/13

8:46 am-12:15 pm

1 stop3h 29m

Sioux Falls Joe Foss Field

Tue 8/19

5:00 am-10:37 am

1 stop5h 37m

$229

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 8/29

7:59 pm-12:28 am

1 stop4h 29m

Sioux Falls Joe Foss Field

Sun 8/31

5:15 pm-11:03 pm

1 stop5h 48m

$294

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 7/11

9:50 am-7:16 pm

2 stops9h 26m

Sioux Falls Joe Foss Field

Mon 7/14

8:06 pm-6:41 pm

2 stops22h 35m

$354

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Thu 7/10

8:44 pm-6:37 pm

2 stops21h 53m

Sioux Falls Joe Foss Field

Thu 7/17

2:57 pm-9:11 am

1 stop18h 14m

$412

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Fri 7/4

1:42 pm-8:20 pm

1 stop6h 38m

Sioux Falls Joe Foss Field

Mon 7/7

8:00 am-12:27 pm

1 stop4h 27m

$423

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Sun 9/7

7:52 pm-1:22 pm

1 stop17h 30m

$174

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Sun 9/7

8:44 am-4:12 pm

2 stops31h 28m

$210

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Sat 7/26

9:25 am-3:59 pm

1 stop6h 34m

$228

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Tue 6/24

11:48 am-5:27 pm

1 stop5h 39m

$269

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Sat 7/26

5:00 am-11:37 pm

2 stops18h 37m

$310

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

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 June 12, 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.

Rainfall in Sioux Falls by month

Plan your trip to Sioux Falls by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sioux Falls ranges from 0.6 - 3.9 inches per month. June is typically the wettest month, when rainfall can reach 3.9 in. January is typically the driest time to visit Sioux Falls when rainfall is around 0.6 in.

Temperature in Sioux Falls by month

Plan your trip to Sioux Falls by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sioux Falls, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

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 June 12, 2025.
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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!
Frontier
6.0
Okay
3,295 reviews
Delta
8.0
Very good
7,946 reviews

Overall

8.0

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Crew

8.5

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.

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

    According to our current data, Delta ($229), American Airlines ($294), and United Airlines ($370) offers the cheapest pricing from St. Louis to Sioux Falls. Delta is 28% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from St. Louis to Sioux Falls one-way?

    The cheapest airlines for a one-way flight from St. Louis to Sioux Falls are Frontier ($174), American Airlines ($228), and Delta ($269).

  • 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Sioux Falls

See prices for flight routes from nearby airports that may be better suited for you.
St. Louis to Rapid City flights
Kansas City to Rapid City flights
Springfield to Rapid City flights
Kansas City to Sioux Falls flights
Springfield to Sioux Falls flights

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$198Average$281FlexibilityNo cancel feeOn-time71%
DeltaCheapest$228Average$278FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$242Average$342FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.