HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news

Cheap flights from St. Louis to Sioux Falls (STL - FSD) from $84

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 6/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — FSD
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

The best prices from Lambert-St Louis to Sioux Falls Joe Foss Field are usually found in June or December, booked 77 days in advance, depart on a Saturday or Wednesday and return on a Saturday

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 May 16, 2024.

Popular in

October

Cheapest in

June

Round-trip from

$344

One-way from

$84
High demand for flights, 41% potential price rise
Search Deals
Best time to find cheap flights, 28% potential price drop
Search Deals
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

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 129% on the overall cost on flights from St. Louis to Sioux Falls.

How far in advance should I book a flight from St. Louis to Sioux Falls?

To save on the cost of your flight from St. Louis to Sioux Falls, book at least 39 days before your planned departure. Booking around this time can save you about 48% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $305 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $305.

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

June is one of the best times of the year to fly to Sioux Falls from St. Louis. Prices for June average $362 per person but you can even find prices for as low as $222. The most expensive prices can be found in the month of October. Opting for a June flight can save you 69% on your journey compared to booking in October

When is the cheapest time to fly from St. Louis to Sioux Falls (STL - FSD)?

It’s optimal to fly from St. Louis to Sioux Falls in the morning. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight at noon.

Cheap Frontier flights from St. Louis to Sioux Falls

Explore cheap flight options specifically provided by Frontier for the route between St. Louis and Sioux Falls. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Take a look at some of the lowest-priced Frontier flights heading from St. Louis to Sioux Falls. Make sure to double check the flight details before booking.
Fri 6/145:36 pmSTL - FSD
1 stop23h 38mFrontier
Wed 6/191:25 pmFSD - STL
1 stop25h 07mFrontier
Deal found 5/15$156
Wed 6/128:02 pmSTL - FSD
1 stop19h 41mFrontier
Wed 6/191:25 pmFSD - STL
1 stop25h 07mFrontier
Deal found 5/15$163
Wed 6/128:02 pmSTL - FSD
1 stop19h 41mFrontier
Sat 6/156:05 pmFSD - STL
1 stop20h 32mFrontier
Deal found 5/15$173
Thu 7/253:53 pmSTL - FSD
1 stop20h 40mFrontier
Mon 7/291:28 pmFSD - STL
1 stop22h 22mFrontier
Deal found 5/14$228
Fri 6/215:36 pmSTL - FSD
1 stop23h 38mFrontier
Mon 6/242:40 pmFSD - STL
1 stop24h 07mFrontier
Deal found 5/15$291

Cheap American Airlines flights from St. Louis to Sioux Falls

Explore cheap flight options specifically provided by American Airlines for the route between St. Louis and Sioux Falls. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Have a look at some of the cheapest available American Airlines flights departing from St. Louis and landing in Sioux Falls. Deals are refreshing constantly so come back soon for more options.
Tue 5/285:55 amSTL - FSD
1 stop6h 04mAmerican Airlines
Tue 6/41:36 pmFSD - STL
1 stop5h 52mAmerican Airlines
Deal found 5/14$223
Mon 6/35:08 pmSTL - FSD
1 stop4h 58mAmerican Airlines
Mon 6/1710:44 amFSD - STL
1 stop11h 18mAmerican Airlines
Deal found 5/14$387
Tue 5/285:55 amSTL - FSD
1 stop6h 04mAmerican Airlines
Tue 6/412:32 pmFSD - STL
2 stops10h 50mAmerican Airlines
Deal found 5/14$411
Tue 6/46:16 amSTL - FSD
2 stops10h 36mAmerican Airlines
Tue 6/115:06 pmFSD - STL
1 stop5h 51mAmerican Airlines
Deal found 5/16$549
Wed 6/126:00 amSTL - FSD
2 stops10h 36mAmerican Airlines
Wed 6/195:06 pmFSD - STL
1 stop5h 51mAmerican Airlines
Deal found 5/15$563

Cheap St. Louis to Sioux Falls flights in May & June 2024

Find cheap flight options from St. Louis to Sioux Falls specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Prices were last updated on May 16, 2024.
Check out some of the best flight deals from St. Louis to Sioux Falls in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Fri 6/145:36 pmSTL - FSD
1 stop23h 38mFrontier
Wed 6/191:25 pmFSD - STL
1 stop25h 07mFrontier
Deal found 5/15$156
Wed 6/128:02 pmSTL - FSD
1 stop19h 41mFrontier
Wed 6/191:25 pmFSD - STL
1 stop25h 07mFrontier
Deal found 5/15$163
Wed 6/128:02 pmSTL - FSD
1 stop19h 41mFrontier
Sat 6/156:05 pmFSD - STL
1 stop20h 32mFrontier
Deal found 5/15$173
Tue 5/285:55 amSTL - FSD
1 stop6h 04mAmerican Airlines
Tue 6/41:36 pmFSD - STL
1 stop5h 52mAmerican Airlines
Deal found 5/14$223
Fri 6/215:36 pmSTL - FSD
1 stop23h 38mFrontier
Mon 6/242:40 pmFSD - STL
1 stop24h 07mFrontier
Deal found 5/15$291
Mon 6/37:45 amSTL - FSD
2 stops7h 14mMultiple Airlines
Mon 6/173:45 pmFSD - STL
3 stops22h 38mMultiple Airlines
Deal found 5/14$371
Fri 6/147:30 amSTL - FSD
2 stops7h 25mMultiple Airlines
Wed 6/1912:59 pmFSD - STL
3 stops28h 29mMultiple Airlines
Deal found 5/15$384
Mon 6/35:08 pmSTL - FSD
1 stop4h 58mAmerican Airlines
Mon 6/1710:44 amFSD - STL
1 stop11h 18mAmerican Airlines
Deal found 5/14$387
Tue 6/46:11 amSTL - FSD
1 stop6h 11mDelta
Tue 6/114:11 pmFSD - STL
1 stop5h 44mDelta
Deal found 5/16$398

St. Louis to Sioux Falls 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Sioux Falls in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Check out some of the best flight deals from St. Louis to Sioux Falls in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Fri 6/145:36 pmSTL - FSD
1 stop23h 38mFrontier
Wed 6/191:25 pmFSD - STL
1 stop25h 07mFrontier
Deal found 5/15$156
Wed 6/128:02 pmSTL - FSD
1 stop19h 41mFrontier
Wed 6/191:25 pmFSD - STL
1 stop25h 07mFrontier
Deal found 5/15$163
Wed 6/128:02 pmSTL - FSD
1 stop19h 41mFrontier
Sat 6/156:05 pmFSD - STL
1 stop20h 32mFrontier
Deal found 5/15$173
Tue 5/285:55 amSTL - FSD
1 stop6h 04mAmerican Airlines
Tue 6/41:36 pmFSD - STL
1 stop5h 52mAmerican Airlines
Deal found 5/14$223
Thu 7/253:53 pmSTL - FSD
1 stop20h 40mFrontier
Mon 7/291:28 pmFSD - STL
1 stop22h 22mFrontier
Deal found 5/14$228
Fri 6/215:36 pmSTL - FSD
1 stop23h 38mFrontier
Mon 6/242:40 pmFSD - STL
1 stop24h 07mFrontier
Deal found 5/15$291
Mon 6/37:45 amSTL - FSD
2 stops7h 14mMultiple Airlines
Mon 6/173:45 pmFSD - STL
3 stops22h 38mMultiple Airlines
Deal found 5/14$371
Fri 6/147:30 amSTL - FSD
2 stops7h 25mMultiple Airlines
Wed 6/1912:59 pmFSD - STL
3 stops28h 29mMultiple Airlines
Deal found 5/15$384
Mon 6/35:08 pmSTL - FSD
1 stop4h 58mAmerican Airlines
Mon 6/1710:44 amFSD - STL
1 stop11h 18mAmerican Airlines
Deal found 5/14$387

One-way flights to Sioux Falls from St. Louis

Search for one-way flight options from St. Louis to Sioux Falls. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,637,452 searches. Data last updated May 16, 2024.
Take a look at some of the best available options we've come across on one-way flights from St. Louis to Sioux Falls. Users can also find round-trip St. Louis to Sioux Falls flights by using the search form above.
Thu 6/63:32 pmSTL - FSD
1 stop21h 02mFrontier
Deal found 5/16$84
Fri 6/145:36 pmSTL - FSD
1 stop23h 38mFrontier
Deal found 5/16$109
Thu 6/68:12 pmSTL - FSD
2 stops18h 43mMultiple Airlines
Deal found 5/16$200
Fri 6/147:45 amSTL - FSD
2 stops7h 10mMultiple Airlines
Deal found 5/16$206
Thu 6/66:22 pmSTL - FSD
3 stops20h 33mMultiple Airlines
Deal found 5/16$245

Find flights from St. Louis to Sioux Falls within your budget

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 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$156 - $408

Route

Depart

Return

Price

Lambert-St LouisSioux Falls Joe Foss Field

STL - FSD

STLFSD

Lambert-St Louis

Fri 6/14

1 stop23h 38m

Sioux Falls Joe Foss Field

Wed 6/19

1 stop25h 07m

$156

Lambert-St LouisSioux Falls Joe Foss Field

STL - FSD

STLFSD

Lambert-St Louis

Wed 6/12

1 stop19h 41m

Sioux Falls Joe Foss Field

Wed 6/19

1 stop25h 07m

$163

Lambert-St LouisSioux Falls Joe Foss Field

STL - FSD

STLFSD

Lambert-St Louis

Wed 6/12

1 stop19h 41m

Sioux Falls Joe Foss Field

Sat 6/15

1 stop20h 32m

$173

Lambert-St LouisSioux Falls Joe Foss Field

STL - FSD

STLFSD

Lambert-St Louis

Tue 5/28

1 stop6h 04m

Sioux Falls Joe Foss Field

Tue 6/4

1 stop5h 52m

$223

Lambert-St LouisSioux Falls Joe Foss Field

STL - FSD

STLFSD

Lambert-St Louis

Thu 7/25

1 stop20h 40m

Sioux Falls Joe Foss Field

Mon 7/29

1 stop22h 22m

$228

Lambert-St LouisSioux Falls Joe Foss Field

STL - FSD

STLFSD

Lambert-St Louis

Mon 6/3

2 stops7h 14m

Sioux Falls Joe Foss Field

Mon 6/17

3 stops22h 38m

$371

Lambert-St LouisSioux Falls Joe Foss Field

STL - FSD

STLFSD

Lambert-St Louis

Fri 6/14

2 stops7h 25m

Sioux Falls Joe Foss Field

Wed 6/19

3 stops28h 29m

$384

Lambert-St LouisSioux Falls Joe Foss Field

STL - FSD

STLFSD

Lambert-St Louis

Tue 6/4

1 stop6h 11m

Sioux Falls Joe Foss Field

Tue 6/11

1 stop5h 44m

$398

Lambert-St LouisSioux Falls Joe Foss Field

STL - FSD

STLFSD

Lambert-St Louis

Fri 5/31

1 stop4h 22m

Sioux Falls Joe Foss Field

Sun 6/2

1 stop6h 16m

$408

Flights are sorted by cheapest first

Deals found on 5/15

When is the best time to book a flight from St. Louis to Sioux Falls?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Sioux Falls. Price data was last updated on May 10, 2024.
To ensure you get the cheapest price possible for a flight from St. Louis to Sioux Falls, you should look to book at least 70 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

When is the cheapest time to fly from St. Louis to Sioux Falls?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Sioux Falls. Price data was last updated on May 12, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Sioux Falls flight should consider departing on Saturday mornings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Sioux Falls by month

Plan your trip from St. Louis to Sioux Falls by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Sioux Falls is currently $169 while a round-trip flight costs $278. Price data was last updated on May 12, 2024.

Currently, September is the cheapest month in which you can book a flight from St. Louis to Sioux Falls (average of $344). Flying from St. Louis to Sioux Falls in July is currently the most expensive (average of $478). 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.

January

$367

February

$360

March

$405

April

$357

May

$427

June

$426

July

$478

August

$396

September

$344

October

$430

November

$408

December

$374

Temperature and rainfall in Sioux Falls by month

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

FSD

Temperature

15.8 - 73.4 °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 May 16, 2024.
Read reviews from past customers who have flown Frontier, American Airlines and United 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
10,673 reviews
Check prices

Boarding

8.2

Food

7.4

Crew

8.6

Comfort

7.9

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Delta
8.0
Very good
10,673 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Boarding

8.2

Food

7.4

Crew

8.6

Comfort

7.9

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

United Airlines
7.4
Good
10,924 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Boarding

8.2

Food

7.4

Crew

8.6

Comfort

7.9

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

American Airlines
7.3
Good
14,514 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Boarding

8.2

Food

7.4

Crew

8.6

Comfort

7.9

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Frontier
6.3
Okay
4,060 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Boarding

8.2

Food

7.4

Crew

8.6

Comfort

7.9

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

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.

  • Can I find flights from St. Louis to Sioux Falls for under $200 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Sioux Falls for under $200. The cheapest flight booked recently is on Frontier for just $156, but on average you can expect to pay $388.

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

    According to our current data, Frontier ($156), American Airlines ($223), and Delta ($398) offers the cheapest pricing from St. Louis to Sioux Falls. Frontier is 56% cheaper than the average price of flights available within the next 90 days to this destination.

  • 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 Frontier as they are the most popular for this route.

  • What does STL to FSD mean?

    This is defined as Lambert-St Louis Airport (STL) and Sioux Falls Joe Foss Field Airport (FSD). Codes like Sioux Falls Joe Foss Field Airport are often used to just call airports uniquely.

  • Can I find deals for flights from St. Louis to Sioux Falls that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to Sioux Falls flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to Sioux Falls with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Sioux Falls flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from St. Louis to Sioux Falls that allow pets onboard?

    Many airlines flying from St. Louis to Sioux Falls offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to Sioux Falls?

    Yes, you can often find last-minute deals on St. Louis to Sioux Falls flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to Sioux Falls flight deals updated?

    The St. Louis to Sioux Falls flight deals you see on this page were last updated on 5/16.

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.

Kansas City to Rapid City flights
St. Louis to Rapid City flights
Springfield to Rapid City flights
Kansas City to Sioux Falls flights
Springfield to Sioux Falls flights

Top 4 airlines flying from St. Louis to Sioux Falls

Discover the top 4 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 2,637,452 searches. Data last updated May 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$181Average$254FlexibilityNo cancel feeOn-time62%
Search Frontier flights
American AirlinesCheapest$213Average$387FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$226Average$353FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$246Average$468FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Newark Airport to Aruba flights
Boston to Hawaii flights
Los Angeles to Reno flights
Charlotte to Atlanta flights
Houston to Paris flights
New York to Iceland flights
Orlando to Las Vegas flights
USA to Bali flights
Los Angeles to Chicago flights
Miami to Medellín flights
Chicago to Guadalajara flights
St. Louis to Fort Smith flights

Search flights from St. Louis to Sioux Falls by cabin class

Find flights from St. Louis to Sioux Falls, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Book a flight to one of these trending destinations

User searches for flights to these destinations increased 20% or more in the past 90 days compared to other destinations
Flights to Montes Claros
Flights to Girona Costa Brava
Flights to Naxos
Flights to Bourgas
Flights to Hyannis Barnstable
Flights to Samos
Flights to Reggio Calabria Tito Menniti
Flights to Devils Lake
Flights to Ningbo Lishe Intl
Flights to Pellston Emmet County
Flights to Provincetown
Flights to Cortez Montezuma County
Flights to Ohrid
Flights to Oran Es Senia
Flights to Menorca/Mahon
Flights to Hakodate
Flights to Ordu/Giresun
Flights to Laayoune Hassan I
Flights to Cornwall Newquay
Flights to Melilla
Flights to Rennes St Jacques
Flights to Parikia Paros
Flights to Constanţa Mihail Kogalniceanu
Flights to Miyakojima Hirara

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Sioux Falls?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from St. Louis to Sioux Falls. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Sioux Falls?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from St. Louis to Sioux Falls for you. Better yet — we are completely free to use.

Can Cheapflights find flights from St. Louis to Sioux Falls with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from St. Louis to Sioux Falls flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from St. Louis to Sioux Falls become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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.
View all available airlines