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

According to our current data, Delta ($199), American Airlines ($229), and United Airlines ($234) offers the cheapest pricing from St. Louis to Sioux Falls. Delta is 36% cheaper than the average price of flights available within the next 90 days to this destination.

What is the cheapest day to fly from St. Louis to Sioux Falls?

Travelers seeking maximum savings on their St. Louis to Sioux Falls flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from St. Louis to Sioux Falls?

When booking a flight from St. Louis to Sioux Falls, you may want to consider flying on American Airlines, Delta or United Airlines as they are the most popular for this route.

What is the cheapest day to fly round-trip from St. Louis to Sioux Falls?

Leaving on a Friday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 120% on the overall cost on flights from St. Louis to Sioux Falls.

What is the cheapest month to fly from St. Louis to Sioux Falls?

February is one of the best times of the year to fly to Sioux Falls from St. Louis. Prices for February average $314 per person but you can even find prices for as low as $213. The most expensive prices can be found in the month of October. Opting for a February flight can save you 37% on your journey compared to booking in October

Most accurate provider : When it comes to deals on St. Louis-Sioux Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Sioux Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Sioux Falls flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on St. Louis-Sioux Falls flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Sioux Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

$100+ Flights from St. Louis to Sioux Falls

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1. Tell us where you want to go

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Cheap flight deals from St. Louis to Sioux Falls

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$199 (Delta)
One-way from	$100 (American Airlines)
Popular in	October
Cheapest in	February
Average price	$327

Provider with most accurate pricing for Lambert-St Louis-Sioux Falls Joe Foss Field flight deals.

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Provider most trusted by Cheapflights users for Lambert-St Louis-Sioux Falls Joe Foss Field flights.

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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

Search Deals

Highest demand for flights based on searches. 13% potential increase in price ($48 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).

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Average for round-trip flights in April 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 April 30, 2025.

Thu 5/296:00 amSTL - FSD

1 stop6h 04mDelta

Thu 5/297:59 pmFSD - STL

1 stop3h 27mDelta

Deal found 4/29

$199

Wed 9/104:17 pmSTL - FSD

1 stop4h 48mAmerican Airlines

Sat 9/137:21 amFSD - STL

1 stop5h 27mAmerican Airlines

Deal found 4/27

$229

Wed 5/141:41 pmSTL - FSD

1 stop7h 08mUnited Airlines

Tue 5/204:53 pmFSD - STL

1 stop7h 05mUnited Airlines

Deal found 4/29

$234

Sun 5/48:00 amSTL - FSD

2 stops25h 10mMultiple Airlines

Wed 5/71:39 pmFSD - STL

2 stops19h 36mMultiple Airlines

Deal found 4/28

$467

Best flights from St. Louis to Sioux Falls
Discover carefully curated flight deals from St. Louis to Sioux Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2025.

Thu 5/296:00 amSTL - FSD

1 stop6h 04mDelta

Thu 5/297:59 pmFSD - STL

1 stop3h 27mDelta

Deal found 4/29

$199

Wed 9/104:17 pmSTL - FSD

1 stop4h 48mAmerican Airlines

Sat 9/137:21 amFSD - STL

1 stop5h 27mAmerican Airlines

Deal found 4/27

$229

Wed 5/141:41 pmSTL - FSD

1 stop7h 08mUnited Airlines

Tue 5/204:53 pmFSD - STL

1 stop7h 05mUnited Airlines

Deal found 4/29

$234

Sun 6/151:00 pmSTL - FSD

3 stops22h 09mMultiple Airlines

Mon 6/168:03 pmFSD - STL

2 stops22h 38mMultiple Airlines

Deal found 4/28

$532

Last-minute flights from St. Louis to Sioux Falls
Discover last-minute flight deals from St. Louis to Sioux Falls. Data last updated April 30, 2025 and is based on user searches.

Sun 5/48:00 amSTL - FSD

2 stops25h 10mMultiple Airlines

Wed 5/71:39 pmFSD - STL

2 stops19h 36mMultiple Airlines

Deal found 4/28

$467

Sun 5/46:00 amSTL - FSD

1 stop5h 44mDelta

Wed 5/710:56 amFSD - STL

1 stop6h 04mDelta

Deal found 4/28

$599

Sun 5/45:20 amSTL - FSD

1 stop7h 18mUnited Airlines

Wed 5/76:00 amFSD - STL

2 stops8h 47mUnited Airlines

Deal found 4/28

$899

Mon 5/125:00 amSTL - FSD

1 stop6h 56mAmerican Airlines

Thu 5/155:45 pmFSD - STL

1 stop5h 00mAmerican Airlines

Deal found 4/29

$537

Wed 5/141:41 pmSTL - FSD

1 stop7h 08mUnited Airlines

Tue 5/204:53 pmFSD - STL

1 stop7h 05mUnited Airlines

Deal found 4/29

$234

Thu 5/296:00 amSTL - FSD

1 stop6h 04mDelta

Thu 5/297:59 pmFSD - STL

1 stop3h 27mDelta

Deal found 4/29

$199

One-way flights from St. Louis to Sioux Falls
Search for one-way flight options from St. Louis to Sioux Falls. Find affordable one-way fares based on user searches. Data last updated April 30, 2025.

Thu 5/299:29 amSTL - FSD

1 stop7h 36mAmerican Airlines

Deal found 4/29

$100

Thu 5/296:30 amSTL - FSD

2 stops17h 14mUnited Airlines

Deal found 4/29

$287

Cheapflights Fare Finder

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 5/29

6:00 am-12:04 pm

1 stop6h 04m

Sioux Falls Joe Foss Field

Thu 5/29

7:59 pm-11:26 pm

1 stop3h 27m

$199

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Wed 9/10

4:17 pm-9:05 pm

1 stop4h 48m

Sioux Falls Joe Foss Field

Sat 9/13

7:21 am-12:48 pm

1 stop5h 27m

$229

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Wed 5/14

1:41 pm-8:49 pm

1 stop7h 08m

Sioux Falls Joe Foss Field

Tue 5/20

4:53 pm-11:58 pm

1 stop7h 05m

$234

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Sun 6/15

1:00 pm-11:09 am

3 stops22h 09m

Sioux Falls Joe Foss Field

Mon 6/16

8:03 pm-6:41 pm

2 stops22h 38m

$532

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Thu 5/29

9:29 am-5:05 pm

1 stop7h 36m

$100

St. LouisSioux Falls

STL - FSD

STLFSD

Lambert-St Louis

Thu 5/29

6:30 am-11:44 pm

2 stops17h 14m

$287

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Compare providers for flights from St. Louis to Sioux Falls

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Sioux Falls in April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on St. Louis-Sioux Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Sioux Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Sioux Falls flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on St. Louis-Sioux Falls flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Sioux Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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?

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

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

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

Read reviews from past customers who have flown Delta, United Airlines and American Airlines from St. Louis to Sioux Falls. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

7,929 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines

7.4

Good

8,696 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What are the cheapest airlines flying from St. Louis to Sioux Falls round-trip?
According to our current data, Delta ($199), American Airlines ($229), and United Airlines ($234) offers the cheapest pricing from St. Louis to Sioux Falls. Delta 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.

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Top 3 airlines flying from St. Louis to Sioux Falls

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$198	Average$321	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$222	Average$258	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$245	Average$348	FlexibilityNo cancel fee	On-time69%

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$100+ 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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.

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

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from St. Louis to Sioux Falls

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to Sioux Falls

Cheapest flights from St. Louis to Sioux FallsExplore 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 April 30, 2025.

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 April 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Sioux Falls that are best for you.

Compare providers for flights from St. Louis to Sioux Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Sioux Falls in April.

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.

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?

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 April 30, 2025.

Rainfall in Sioux Falls by month

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

Temperature in Sioux Falls by month

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

Reviews of airlines servicing Sioux Falls

Read reviews from past customers who have flown Delta, United Airlines and American Airlines from St. Louis to Sioux Falls. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

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Alternative routes for St. Louis to Sioux Falls

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Top 3 airlines flying from St. Louis to Sioux Falls

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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 April 30, 2025.