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FSD - STL

Find cheap flights from Sioux Falls to St. Louis from $208

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sioux Falls to St. Louis departing on 8/24. 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.
1 adult
0 bags
Sun 6/2
Sun 6/9

Search hundreds of travel sites at once for deals on flights to St. Louis

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sioux Falls to St. Louis, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sioux Falls to St. Louis, as well as popular online travel agencies
In the last 7 days travelers have searched 43,693,958 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Sioux Falls to St. Louis (FSD-STL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sioux Falls to St. Louis that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:20 pm - 9:29 pmFSD-STL
4h 09m1 stop
6:30 am - 10:04 amSTL-FSD
3h 34m1 stop
$208Delta
Find Deal
Sat, Aug 24 - Tue, Aug 27
5:22 pm - 10:08 pmFSD-STL
4h 46m1 stop
4:18 pm - 9:29 pmSTL-FSD
5h 11m1 stop
$228American Airlines
Find Deal
Thu, Aug 22 - Mon, Aug 26
5:06 pm - 10:57 pmFSD-STL
5h 51m1 stop
6:00 am - 10:07 amSTL-FSD
4h 07m1 stop
$308American Airlines
Find Deal
Fri, Jun 7 - Sun, Jun 9
5:00 am - 11:10 amFSD-STL
6h 10m1 stop
6:06 am - 10:17 amSTL-FSD
4h 11m1 stop
$328Delta
Find Deal
Sun, Jun 2 - Sun, Jun 9
5:20 pm - 9:29 pmFSD-STL
4h 09m1 stop
9:00 am - 10:44 pmSTL-FSD
13h 44m2 stops
$336Delta
Find Deal
Sat, Aug 24 - Tue, Aug 27
4:09 pm - 9:36 pmFSD-STL
5h 27m1 stop
10:18 am - 3:28 pmSTL-FSD
5h 10m1 stop
$358Delta
Find Deal
Wed, Jul 24 - Sat, Jul 27
10:42 am - 9:16 pmFSD-STL
10h 34m2 stops
4:22 pm - 10:16 amSTL-FSD
17h 54m1 stop
$425American Airlines
Find Deal
Thu, Aug 22 - Mon, Aug 26
10:20 am - 6:40 pmFSD-STL
8h 20m1 stop
6:55 pm - 2:55 pmSTL-FSD
20h 00m2 stops
Sun, Jun 2 - Sun, Jun 9
10:20 am - 6:40 pmFSD-STL
8h 20m1 stop
5:22 pm - 2:55 pmSTL-FSD
21h 33m3 stops
Sun, Jun 2 - Sun, Jun 9
9:07 am - 10:14 pmFSD-STL
13h 07m2 stops
5:30 pm - 9:58 pmSTL-FSD
4h 28m1 stop
$506United Airlines
Find Deal
Wed, Jul 24 - Sat, Jul 27

Flights from Sioux Falls to St. Louis - Travel Insights & Trends

Get data-powered insights and trends into flights from Sioux Falls to St. Louis to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Sioux Falls to St. Louis?

The average price of all flights from Sioux Falls to St. Louis clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Sioux Falls to St. Louis, look for departures on Sundays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from St. Louis, Saturday is the cheapest day to fly and Sunday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Sioux Falls to St. Louis, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Sioux Falls to St. Louis is August, where tickets cost $318 on average. On the other hand, the most expensive months are October and January, where the average cost of tickets is $630 and $615 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Sioux Falls to St. Louis, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Sioux Falls to St. Louis, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 26 days before departure.

Good to know

Low season

May

High season

June

Cheapest flight

$208
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Sioux Falls to St. Louis

When to book flights from Sioux Falls to St. Louis

Are your dates flexible? Find out the best times to travel from Sioux Falls to St. Louis based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Sioux Falls to St. Louis

  • What is the cheapest flight from Sioux Falls to St. Louis?

    In the last 3 days, the lowest price for a flight from Sioux Falls to St. Louis was $208 for a round-trip ticket.

  • Do I need a passport to fly between Sioux Falls and St. Louis?

    A passport is not required to fly from Sioux Falls to St. Louis.

  • Which airports will I be using when flying from Sioux Falls to St. Louis?

    On your way to St. Louis, you’ll fly out from Sioux Falls Joe Foss Field. You’ll be landing at Lambert-St Louis.

  • Which aircraft models fly most regularly from Sioux Falls to St. Louis?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Sioux Falls to St. Louis?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Sioux Falls and St. Louis, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Sioux Falls to St. Louis, Delta or American Airlines?

    The two airlines most popular with KAYAK users for flights from Sioux Falls to St. Louis are Delta and American Airlines. With an average price for the route of $398 and an overall rating of 8.0, Delta is the most popular choice. American Airlines is also a great choice for the route, with an average price of $339 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Sioux Falls to St. Louis?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sioux Falls to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sioux Falls to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Sioux Falls is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sioux Falls to St. Louis?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to St. Louis with an airline and back to Sioux Falls with another airline. Booking your flights between Sioux Falls and STL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sioux Falls to St. Louis?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to St. Louis from Sioux Falls up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 3 airlines serving from Sioux Falls to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Sioux Falls to St. Louis. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sioux Falls to St. Louis? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10848 reviews
8.0Entertainment
8.6Crew
7.4Food
8.2Boarding
7.9Comfort
Airline reviews

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

8.0 ExcellentAnonymous, May 2024ATL - ATW
Read more about Delta reviews

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

I had a wonderful experience flying with delta. The gentleman taking care of us on our flight was so nice, accommodating, and attentive. He always was smiling and giving pins to the kids which made me smile. The flight was quick too and without turbulence. Thank you for the great flying experience.

Delta is one of the best airlines I have flown

Made the Atlanta to Pittsburgh trip many times, with Delta no issues

I always fly with Delta. My friends tell me their horror stories of flying with other airlines. I just smile and say, “You should fly Delta”

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

All flights were on time and boarding was issue free

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

Crew were fine, drinks and snacks were as well but we were delayed for around 2 hrs which made our entry into Mexico delayed as well with the influx of arrivals at the same time. Sort of wasted our first day of vacation. We left Pittsburgh at 630am and did not arrive in Mexico until late dinner time.

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

Not being able to purchase my check in baggage online was a negative.

LATE LATE LATE!!! Plagued by late AA flights on this trip. Such a drag. This one was by far the worst.

WiFi connected but only let you go to the AA website, not even text messaging worked.

Too bad that first class seats do not recline significantly causing discomfort

Flight delayed over an over all day until it cancelled at 1:30am. Would not repeatedly delay that late. Offer hotel rooms and rebook early. Very difficult for families with small children

this is starting to seem like an american airlines standard. delayed flights and fake apologies… getting tired of it

Last minute flights from Sioux Falls to St. Louis

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Sioux Falls to St. Louis that are departing in the next 10 days.
5/4Sat
multi-stopDelta
5h 59mFSD-STL
5/7Tue
multi-stopDelta
5h 16mSTL-FSD
$264
5/4Sat
multi-stopUnited Airlines
9h 46mFSD-STL
5/7Tue
multi-stopUnited Airlines
4h 20mSTL-FSD
$831

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Sioux Falls - St. Louis Flights

Departure:

Sioux Falls (FSD)United States

Destination:

St. Louis (STL)United States

Return flight deals:

St. Louis - Sioux Falls

Cabin classes: