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 Delta. Our recent data shows that you can find tickets from as low as $214 on this airline. Additional options worth looking into are United Airlines and American Airlines, starting at $309 and $314 round-trip. Delta is currently priced 38% below the average price you’ll pay for this route.

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

Travelers seeking maximum savings on their Sioux Falls to St. Louis flight should consider departing on Thursday evenings when fares are most often at their lowest. Monday mornings 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 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 is the cheapest day to fly round-trip from Sioux Falls to St. Louis?

Users have found that leaving on a Wednesday can be a cost-effective option. It’s possible to save up to 74% on your flight compared to booking on days when demand is much higher.

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 $348. You can even find prices in April for less than $348, as users have found deals to St. Louis from as low as $197. The month of February 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 35%.

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

Most trusted provider : When it comes to deals on Sioux Falls-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub 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 Sioux Falls-St. Louis 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 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.

$214+ Flights from Sioux Falls to St. Louis

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1. Tell us where you want to go

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Cheap flight deals from Sioux Falls to St. Louis

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$214 (Delta)
Popular in	February
Cheapest in	April
Average price	$252

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

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

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From Sioux Falls Joe Foss Field to Lambert-St Louis

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High demand for flights, 2% potential price rise

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Best time to find cheap flights, 3% potential price drop

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Average for round-trip flights in January 2025

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Find flight deals from Sioux Falls to St. Louis

Cheapest flights from Sioux Falls to St. Louis
Explore the most affordable flight options available from Sioux Falls to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 2025.

Sat 2/14:27 pmFSD - STL

1 stop6h 47mDelta

Fri 2/75:30 pmSTL - FSD

1 stop5h 37mDelta

Deal found 1/16

$214

Sun 1/194:46 pmFSD - STL

1 stop5h 23mAmerican Airlines

Sun 1/266:00 pmSTL - FSD

1 stop4h 51mAmerican Airlines

Deal found 1/15

$279

Tue 4/89:05 amFSD - STL

1 stop7h 31mUnited Airlines

Fri 4/115:35 pmSTL - FSD

1 stop4h 37mUnited Airlines

Deal found 1/15

$309

Sun 1/199:46 pmFSD - STL

3 stops20h 55mMultiple Airlines

Sun 1/264:28 pmSTL - FSD

2 stops20h 14mMultiple Airlines

Deal found 1/15

$826

Best flights from Sioux Falls to St. Louis
Discover carefully curated flight deals from Sioux Falls to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 16, 2025.

Sat 2/14:27 pmFSD - STL

1 stop6h 47mDelta

Fri 2/75:30 pmSTL - FSD

1 stop5h 37mDelta

Deal found 1/16

$214

Tue 4/89:05 amFSD - STL

1 stop7h 31mUnited Airlines

Fri 4/115:35 pmSTL - FSD

1 stop4h 37mUnited Airlines

Deal found 1/15

$309

Tue 4/81:23 pmFSD - STL

1 stop6h 06mAmerican Airlines

Thu 4/1010:15 amSTL - FSD

1 stop5h 18mAmerican Airlines

Deal found 1/15

$314

Last-minute flights from Sioux Falls to St. Louis
Discover last-minute flight deals from Sioux Falls to St. Louis. Data last updated January 16, 2025 and is based on user searches.

Sun 1/194:46 pmFSD - STL

1 stop5h 23mAmerican Airlines

Sun 1/266:00 pmSTL - FSD

1 stop4h 51mAmerican Airlines

Deal found 1/15

$279

Sun 1/199:46 pmFSD - STL

3 stops20h 55mMultiple Airlines

Sun 1/264:28 pmSTL - FSD

2 stops20h 14mMultiple Airlines

Deal found 1/15

$826

Tue 1/211:18 pmFSD - STL

1 stop3h 35mDelta

Sat 1/256:00 amSTL - FSD

1 stop4h 20mDelta

Deal found 1/15

$289

Tue 1/2111:26 amFSD - STL

1 stop4h 12mUnited Airlines

Sat 1/256:30 amSTL - FSD

2 stops13h 53mUnited Airlines

Deal found 1/15

$502

Tue 1/215:52 pmFSD - STL

1 stop5h 04mAmerican Airlines

Fri 1/246:00 pmSTL - FSD

1 stop17h 45mAmerican Airlines

Deal found 1/15

$609

Sat 2/14:27 pmFSD - STL

1 stop6h 47mDelta

Fri 2/75:30 pmSTL - FSD

1 stop5h 37mDelta

Deal found 1/16

$214

Sat 2/13:13 pmFSD - STL

1 stop6h 32mUnited Airlines

Fri 2/76:30 amSTL - FSD

2 stops13h 53mUnited Airlines

Deal found 1/14

$432

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

Fly from

Fly to

Route

Depart

Return

Price

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Sat 2/1

4:27 pm-11:14 pm

1 stop6h 47m

Lambert-St Louis

Fri 2/7

5:30 pm-11:07 pm

1 stop5h 37m

$214

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Tue 4/8

9:05 am-4:36 pm

1 stop7h 31m

Lambert-St Louis

Fri 4/11

5:35 pm-10:12 pm

1 stop4h 37m

$309

Sioux FallsSt. Louis

FSD - STL

FSDSTL

Sioux Falls Joe Foss Field

Tue 4/8

1:23 pm-7:29 pm

1 stop6h 06m

Lambert-St Louis

Thu 4/10

10:15 am-3:33 pm

1 stop5h 18m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/16

Compare providers for flights from Sioux Falls to St. Louis

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

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 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 Sioux Falls-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sioux Falls-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sioux Falls-St. Louis flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Sioux Falls-St. Louis flights, Cheapflights users trust FlightHub the most. FlightHub 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 Sioux Falls-St. Louis 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 Sioux Falls to St. Louis

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

Travel insights for flights from Sioux Falls to St. Louis

Get recent, data-driven insights about flights from Sioux Falls to St. Louis including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from Sioux Falls to St. Louis (average of $311). Flying from Sioux Falls to St. Louis in March is currently the most expensive (average of $356). 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 FSD to STL?

It’s typically best to fly out from Sioux Falls to St. Louis in the evening. Doing so could potentially save you 43% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in St. Louis by month

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing St. Louis

Read reviews from past customers who have flown Delta, United Airlines 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

8,511 reviews

Reviews

1 / 10

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

Delta

8.0

Very good

8,511 reviews

Delta

8.0

Very good

8,511 reviews

Reviews

1 / 10

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

United Airlines

7.4

Good

8,965 reviews

Delta

8.0

Very good

8,511 reviews

Reviews

1 / 10

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

8,511 reviews

Reviews

1 / 10

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 Sioux Falls to St. Louis round-trip?
Our cheapest airline available from Sioux Falls to St. Louis is Delta. Our recent data shows that you can find tickets from as low as $214 on this airline. Additional options worth looking into are United Airlines and American Airlines, starting at $309 and $314 round-trip. Delta is currently priced 38% below the average price you’ll pay for this route.
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.
What is the cheapest month to book a flight from Sioux Falls to St. Louis?
Currently, August is the cheapest month in which you can book a flight from Sioux Falls to St. Louis (average of $311). Flying from Sioux Falls to St. Louis in March is currently the most expensive (average of $356). 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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Fenton

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Collinsville

Wentzville

Eureka

St. Peters

Festus

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Farmington

Chesterfield

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Top 3 airlines flying from Sioux Falls to St. Louis

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$207	Average$308	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$222	Average$290	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$228	Average$386	FlexibilityNo cancel fee	On-time69%

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$214+ Cheap flights from Sioux Falls to St. Louis (FSD - STL)

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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.

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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Sioux Falls to St. Louis

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from Sioux Falls to St. Louis

Cheapest flights from Sioux Falls to St. LouisExplore the most affordable flight options available from Sioux Falls to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 2025.

Explore the most affordable flight options available from Sioux Falls to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 2025.

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

Compare providers for flights from Sioux Falls to St. Louis

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 Sioux Falls to St. Louis in January.

Best time to book a flight from Sioux Falls to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Sioux Falls with our price prediction graph.

Travel insights for flights from Sioux Falls to St. Louis

Get recent, data-driven insights about flights from Sioux Falls to St. Louis including ideal travel times, pricing trends, and more.

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

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

Find hourly flight availability from Sioux Falls to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 16, 2025.

Rainfall in St. Louis by month

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

Temperature in St. Louis by month

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

Reviews of airlines servicing St. Louis

Read reviews from past customers who have flown Delta, United Airlines 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.

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.

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

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

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

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

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

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Alternative routes for Sioux Falls to St. Louis

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Top 3 airlines flying from Sioux Falls to St. Louis

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Cheapest flights from Sioux Falls to St. Louis
Explore the most affordable flight options available from Sioux Falls to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 2025.