FSD - STL

$181 Find Cheap Flights from Sioux Falls to St. Louis

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 6/1. 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
1 adult, Economy, 0 bags

KAYAK searches 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

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

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

Everything you should know

Cheapest round-trip
$181
Typical prices: $467-$290
Frontier
Mon 6/1Tue 6/9
FSD - STL • 1 stop
Cheapest one-way
$191
Multiple Airlines
Wed 5/13
FSD - STL • 2 stops
Top airlines
Cheapest • from $181 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Sioux Falls and St. Louis. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $270 (round-trip)
Shortest trip • 4h 11m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 22% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to St. Louis!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sioux Falls to St. Louis

Mon, Jun 1 - Tue, Jun 9
Frontier Logo
4:25 pm - 7:23 pm
FSD
-
STL
26h 58m
1 stop
Frontier Logo
8:08 pm - 7:19 pm
STL
-
FSD
23h 11m
1 stop
$181Frontier
Sat, Sep 26 - Tue, Sep 29
American Airlines Logo
5:54 pm - 11:41 pm
FSD
-
STL
5h 47m
1 stop
American Airlines Logo
5:40 am - 11:46 am
STL
-
FSD
6h 06m
1 stop
$271American Airlines
Fri, Jun 26 - Tue, Jun 30
United Airlines Logo
6:51 pm - 11:57 pm
FSD
-
STL
5h 06m
1 stop
United Airlines Logo
5:33 pm - 10:07 pm
STL
-
FSD
4h 34m
1 stop
$290United Airlines
Tue, Sep 22 - Sun, Sep 27
Delta Logo
5:15 am - 11:30 am
FSD
-
STL
6h 15m
1 stop
Delta Logo
6:30 am - 12:28 pm
STL
-
FSD
5h 58m
1 stop
$292Delta
Thu, May 21 - Mon, May 25
Delta Logo
5:00 am - 10:32 am
FSD
-
STL
5h 32m
1 stop
Delta Logo
6:21 am - 10:15 am
STL
-
FSD
3h 54m
1 stop
$303Delta
Mon, Jun 1 - Tue, Jun 9
Multiple Airlines Logo
8:53 pm - 2:48 pm
FSD
-
STL
17h 55m
2 stops
Multiple Airlines Logo
8:08 pm - 7:19 pm
STL
-
FSD
23h 11m
1 stop
$306Multiple Airlines
Thu, May 14 - Mon, May 18
American Airlines Logo
7:39 pm - 11:56 pm
FSD
-
STL
4h 17m
1 stop
American Airlines Logo
5:21 pm - 11:06 pm
STL
-
FSD
5h 45m
1 stop
$319American Airlines
Fri, May 22 - Mon, May 25
American Airlines Logo
5:35 pm - 11:59 pm
FSD
-
STL
6h 24m
1 stop
American Airlines Logo
6:00 am - 11:37 am
STL
-
FSD
5h 37m
1 stop
$324American Airlines
Sat, Jul 25 - Thu, Jul 30
United Airlines Logo
7:40 am - 12:07 pm
FSD
-
STL
4h 27m
1 stop
United Airlines Logo
8:35 pm - 1:06 am
STL
-
FSD
4h 31m
1 stop
$329United Airlines
Sat, Jun 13 - Sun, Jun 14
Delta Logo
10:53 am - 4:46 pm
FSD
-
STL
5h 53m
1 stop
Delta Logo
6:21 am - 10:16 am
STL
-
FSD
3h 55m
1 stop
$355Delta
Booking Insights

KAYAK's insights & trends for Sioux Falls to St. Louis flights

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.

How much is a round-trip flight from Sioux Falls to St. Louis?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Sioux Falls to St. Louis departing in June.

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 round-trip 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 September, where tickets cost $278 (return) on average. On the other hand, the most expensive months are July and November, where the average cost of round-trip tickets is $456 and $418 respectively.

Good to know

Low seasonSeptember
Cheapest flight$181
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly and prices are also 2% lower on average.
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 $191 for a one-way ticket and $181 for a round-trip.

  • 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?

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

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

    The two airlines most popular with KAYAK users for flights from Sioux Falls to St. Louis are Delta and United Airlines. With an average price for the route of $362 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $314 and an overall rating of 7.4.

  • 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.

Reviews of the 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.
7.9
DeltaOverall score based on 8463 reviews
7.9Comfort
8.1Boarding
7.8Entertainment
8.5Crew
7.2Food
Airline reviews

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

4.0 OkayBradley, Apr 2026
RDU - ATL
Read more Delta reviews

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

This wasn't my experience with Delta. It was just the Pegasus flight. Seats were very hard. Staff was kinda rough. Not very nice. Charged me for snacks. For a 4 hour flight I would've expected more.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

I would like a refund for the extra cost the seat I paid for. An oversized person sat next to me and I couldn’t fit on my seat and had to move to another seat.

Boarding gate at LAX was too crowded—two gates next to one another

The flight was delayed about an hour for a maintenance specialist to approve the maintenance repair

This flight was delayed but it worked in my favor because my Atlanta to Dallas flight was delayed.

This was a hard flight. 3 delays out of OKC (1 on the Tarmac). Delay in Atlanta coming to Dallas. total travel time was the equivalent of driving from OKC to Atlanta.

Like: flights are on time, good boarding process Can improve: planes are old, improve entertainment and make space more comfortable

Had to wait for a gate for a long time, then waited on the run way for a long time before leaving. The actual flights part was good.

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

Flying in the United States with the major airlines has become so underwhelming. A 2-3hr flight in most other parts of the world with the major carriers of the area comes with newer, CLEANER aircraft and significantly better in flight service in terms of both staff attitude and a actual meal service.

Everything you need to know for your flight from Sioux Falls to St. Louis

Information on your arrival and departure airports