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Cheap flights from Sioux Falls to St. Louis (FSD - STL) from $181

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 5/31. 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.
FSD — STL
May 21 — May 281
From?
To?
Tue 5/21
Tue 5/28
1 adult, Economy
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The best prices from Sioux Falls Joe Foss Field to Lambert-St Louis are usually found in April or January, booked 7 days in advance, depart on a Saturday or Wednesday and return on a Saturday

Cheap flight deals from Sioux Falls to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Sioux Falls (FSD) to St. Louis (STL). 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

July

Cheapest in

April

Average price

$328

Round-trip from

$320
High demand for flights, 37% potential price rise
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Best time to find cheap flights, 38% potential price drop
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Average for round-trip flights in May 2024
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From Sioux Falls Joe Foss Field to Lambert-St Louis
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What is the cheapest day to fly round-trip from Sioux Falls to St. Louis?

Users have found that leaving on a Friday can be a cost-effective option. It’s possible to save up to 82% on your flight compared to booking on days when demand is much higher.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 8 days in advance, which can save you up to 284% on flights from Sioux Falls to St. Louis compared to booking the week you need them. Waiting 8 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $118. For sooner than that we have options available in the next 3 days from $614.

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

The best pricing can be found in the month of April. Prices to St. Louis from Sioux Falls average $372. You can even find prices in April for less than $372, as users have found deals to St. Louis from as low as $195. The month of July appears to be one of the more expensive times to travel to St. Louis from Sioux Falls. Flying in the targeted month can save you up to 58%.

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

It’s typically best to fly out from Sioux Falls to St. Louis at noon. Doing so could potentially save you 42% on the flight price compared to flying in the morning, which is usually more expensive.

Cheap Frontier flights from Sioux Falls to St. Louis

Explore cheap flight options specifically provided by Frontier for the route between Sioux Falls and St. Louis. 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 peek at the cheapest Frontier flights we've detected traveling from Sioux Falls to St. Louis. Make sure to check back often as deals are often changing.
Fri 5/312:38 pmFSD - STL
1 stop18h 47mFrontier
Sun 6/211:22 pmSTL - FSD
1 stop13h 14mFrontier
Deal found 5/15$181
Mon 7/82:44 pmFSD - STL
1 stop24h 03mFrontier
Thu 7/118:57 pmSTL - FSD
1 stop15h 38mFrontier
Deal found 5/16$202
Fri 5/312:38 pmFSD - STL
1 stop18h 47mFrontier
Sun 6/211:22 pmSTL - FSD
1 stop13h 14mFrontier
Deal found 5/16$257
Mon 6/172:40 pmFSD - STL
1 stop24h 07mFrontier
Thu 6/203:32 pmSTL - FSD
1 stop21h 02mFrontier
Deal found 5/15$272
Fri 6/71:25 pmFSD - STL
1 stop20h 04mFrontier
Sun 6/93:37 pmSTL - FSD
1 stop22h 13mFrontier
Deal found 5/15$278

Cheap Delta flights from Sioux Falls to St. Louis

Explore cheap flight options specifically provided by Delta for the route between Sioux Falls and St. Louis. 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 gander at the lowest prices we've found on Delta flights from Sioux Falls to St. Louis. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Sat 8/245:20 pmFSD - STL
1 stop4h 09mDelta
Tue 8/276:30 amSTL - FSD
1 stop3h 34mDelta
Deal found 5/15$198
Sat 8/245:20 pmFSD - STL
1 stop4h 09mDelta
Tue 8/279:00 amSTL - FSD
2 stops13h 44mDelta
Deal found 5/15$331

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

Find cheap flight options from Sioux Falls to St. Louis 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.
Listed are some of the best fares we've found on flights departing from Sioux Falls to St. Louis in 2024. Check back regularly for other flight deals.
Fri 5/312:38 pmFSD - STL
1 stop18h 47mFrontier
Sun 6/211:22 pmSTL - FSD
1 stop13h 14mFrontier
Deal found 5/15$181
Fri 5/312:38 pmFSD - STL
1 stop18h 47mFrontier
Sun 6/211:22 pmSTL - FSD
1 stop13h 14mFrontier
Deal found 5/16$257
Mon 6/172:40 pmFSD - STL
1 stop24h 07mFrontier
Thu 6/203:32 pmSTL - FSD
1 stop21h 02mFrontier
Deal found 5/15$272
Fri 6/71:25 pmFSD - STL
1 stop20h 04mFrontier
Sun 6/93:37 pmSTL - FSD
1 stop22h 13mFrontier
Deal found 5/15$278
Mon 6/35:36 pmFSD - STL
1 stop4h 11mAmerican Airlines
Thu 6/137:00 amSTL - FSD
1 stop5h 50mAmerican Airlines
Deal found 5/14$298
Mon 6/173:45 pmFSD - STL
3 stops22h 38mMultiple Airlines
Thu 6/206:22 pmSTL - FSD
3 stops20h 33mMultiple Airlines
Deal found 5/15$344
Thu 6/65:44 amFSD - STL
1 stop11h 34mAmerican Airlines
Mon 6/105:27 amSTL - FSD
1 stop7h 23mAmerican Airlines
Deal found 5/16$357
Mon 6/173:45 pmFSD - STL
3 stops22h 38mMultiple Airlines
Thu 6/205:15 pmSTL - FSD
2 stops21h 40mMultiple Airlines
Deal found 5/15$364
Fri 5/313:49 pmFSD - STL
2 stops18h 39mMultiple Airlines
Sun 6/27:30 pmSTL - FSD
2 stops19h 29mMultiple Airlines
Deal found 5/16$365

Sioux Falls to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Sioux Falls and St. Louis 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.
Listed are some of the best fares we've found on flights departing from Sioux Falls to St. Louis in 2024. Check back regularly for other flight deals.
Fri 5/312:38 pmFSD - STL
1 stop18h 47mFrontier
Sun 6/211:22 pmSTL - FSD
1 stop13h 14mFrontier
Deal found 5/15$181
Sat 8/245:20 pmFSD - STL
1 stop4h 09mDelta
Tue 8/276:30 amSTL - FSD
1 stop3h 34mDelta
Deal found 5/14$198
Mon 7/82:44 pmFSD - STL
1 stop24h 03mFrontier
Thu 7/118:57 pmSTL - FSD
1 stop15h 38mFrontier
Deal found 5/16$202
Thu 10/315:28 pmFSD - STL
1 stop5h 08mAmerican Airlines
Sat 11/95:36 amSTL - FSD
1 stop6h 51mAmerican Airlines
Deal found 5/15$228
Fri 5/312:38 pmFSD - STL
1 stop18h 47mFrontier
Sun 6/211:22 pmSTL - FSD
1 stop13h 14mFrontier
Deal found 5/16$257
Mon 6/172:40 pmFSD - STL
1 stop24h 07mFrontier
Thu 6/203:32 pmSTL - FSD
1 stop21h 02mFrontier
Deal found 5/15$272
Fri 6/71:25 pmFSD - STL
1 stop20h 04mFrontier
Sun 6/93:37 pmSTL - FSD
1 stop22h 13mFrontier
Deal found 5/15$278
Mon 6/35:36 pmFSD - STL
1 stop4h 11mAmerican Airlines
Thu 6/137:00 amSTL - FSD
1 stop5h 50mAmerican Airlines
Deal found 5/14$298
Sat 8/245:20 pmFSD - STL
1 stop4h 09mDelta
Tue 8/279:00 amSTL - FSD
2 stops13h 44mDelta
Deal found 5/15$331

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

Customize your flight search to find flights from Sioux Falls 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 2,637,452 searches. Data last updated May 16, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$181 - $552

Route

Depart

Return

Price

Sioux Falls Joe Foss FieldLambert-St Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Fri 5/31

1 stop18h 47m

Lambert-St Louis

Sun 6/2

1 stop13h 14m

$181

Sioux Falls Joe Foss FieldLambert-St Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Sat 8/24

1 stop4h 09m

Lambert-St Louis

Tue 8/27

1 stop3h 34m

$198

Sioux Falls Joe Foss FieldLambert-St Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Mon 7/8

1 stop24h 03m

Lambert-St Louis

Thu 7/11

1 stop15h 38m

$202

Sioux Falls Joe Foss FieldLambert-St Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Thu 10/31

1 stop5h 08m

Lambert-St Louis

Sat 11/9

1 stop6h 51m

$228

Sioux Falls Joe Foss FieldLambert-St Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Fri 5/31

1 stop18h 47m

Lambert-St Louis

Sun 6/2

1 stop13h 14m

$257

Sioux Falls Joe Foss FieldLambert-St Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Mon 6/17

1 stop24h 07m

Lambert-St Louis

Thu 6/20

1 stop21h 02m

$272

Sioux Falls Joe Foss FieldLambert-St Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Mon 6/3

1 stop4h 11m

Lambert-St Louis

Thu 6/13

1 stop5h 50m

$298

Sioux Falls Joe Foss FieldLambert-St Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Mon 6/17

3 stops22h 38m

Lambert-St Louis

Thu 6/20

3 stops20h 33m

$344

Sioux Falls Joe Foss FieldLambert-St Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Fri 6/7

1 stop6h 14m

Lambert-St Louis

Sun 6/9

2 stops14h 21m

$552

Flights are sorted by cheapest first

Deals found on 5/15

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

Use this chart to determine the optimal time to book a round-trip flight from Sioux Falls to St. Louis. Price data was last updated on May 10, 2024.
Booking 7 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sioux Falls to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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When is the cheapest time to fly from Sioux Falls to St. Louis?

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

Average price of flights to St. Louis by month

Plan your trip from Sioux Falls to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Sioux Falls to St. Louis is currently $0 while a round-trip flight costs $281. Price data was last updated on May 12, 2024.

Currently, September is the cheapest month in which you can book a flight from Sioux Falls to St. Louis (average of $320). Flying from Sioux Falls to St. Louis in July is currently the most expensive (average of $369). 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

$326

February

$331

March

$357

April

$337

May

$342

June

$366

July

$369

August

$336

September

$320

October

$324

November

$336

December

$326

Temperature and rainfall in St. Louis by month

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

STL

Temperature

32 - 80.6 °F

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated May 16, 2024.
Read reviews from past customers who have flown Frontier, Delta and American Airlines from Sioux Falls to St. Louis. 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

Entertainment

8.0

Boarding

8.2

Food

7.4

Crew

8.6

Comfort

7.9

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

Entertainment

8.0

Boarding

8.2

Food

7.4

Crew

8.6

Comfort

7.9

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

Entertainment

8.0

Boarding

8.2

Food

7.4

Crew

8.6

Comfort

7.9

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

Entertainment

8.0

Boarding

8.2

Food

7.4

Crew

8.6

Comfort

7.9

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

Entertainment

8.0

Boarding

8.2

Food

7.4

Crew

8.6

Comfort

7.9

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 Sioux Falls to St. Louis. 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 Sioux Falls to St. Louis for under $200 on Cheapflights?

    Yes, there are multiple flights from Sioux Falls to St. Louis for under $200. The cheapest flight booked recently is on Frontier for just $181, but on average you can expect to pay $328.

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

    Our cheapest airline available from Sioux Falls to St. Louis is Frontier. Our recent data shows that you can find tickets from as low as $181 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $198 and $228 round-trip. Frontier is currently priced 51% below the average price you’ll pay for this route.

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

    American Airlines, Delta and United Airlines are the most popular airlines when flying from Sioux Falls to St. Louis.

  • What does FSD to STL mean?

    Great question - FSD to STL just means Sioux Falls Joe Foss Field Airport to Lambert-St Louis Airport. Now you’ll know what these unique codes when you look for flights!

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

    The amount of baggage you can bring on your Sioux Falls to St. Louis 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 Sioux Falls to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Sioux Falls to St. Louis 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 Sioux Falls to St. Louis that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Sioux Falls 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.

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

    Many airlines flying from Sioux Falls to St. Louis 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 Sioux Falls to St. Louis?

    Yes, you can often find last-minute deals on Sioux Falls to St. Louis 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 Sioux Falls to St. Louis flight deals updated?

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

See more FAQs

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Alternative routes for Sioux Falls 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 Sioux Falls to St. Louis

Discover the top 3 airlines that operate flights from Sioux Falls 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 2,637,452 searches. Data last updated May 16, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$211Average$339FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$216Average$375FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$279Average$461FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
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Search flights from Sioux Falls to St. Louis by cabin class

Find flights from Sioux Falls to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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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 Sioux Falls to St. Louis?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Sioux Falls to St. Louis. 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 Sioux Falls to St. Louis?

Cheapflights helps you find that perfect flight to St. Louis from Sioux Falls by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Need flexible booking options for your flight to St. Louis from Sioux Falls? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to St. Louis from Sioux Falls today and book when prices fit your budget.

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