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Flights from Sioux Falls to St. Louis

Cheap flight deals from Sioux Falls to St. Louis

Find the cheapest flights from Sioux Falls to St. Louis within the next 3 months. Book one way flights from KWD 29 or round trip flights from KWD 66.

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flight Info | Sioux Falls to St. Louis

The distance between Sioux Falls and St. Louis is about 778.52 km. The most popular month to St. Louis is March. The off-season for travel is March.

Cheapest one-way flight price KWD 29
Cheapest return ticket price KWD 66
Off-season for travel March
Peak season for travel March
Flight distance 778.52 km

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

The cheapest time for Sioux Falls to St. Louis flights: Aug 24 to Aug 31 — one way flight prices from KWD 29.

Cheapest flights
From price
Search
  • 13 20
  • 20 27

  • Aug

    27 3
  • 3 10
  • 10 17
  • 17 24
  • 24 31

  • Sep

    31 7
  • 7 14
  • 14 21
  • 21 28

  • Oct

    28 5
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • When are flight tickets from Sioux Falls (FSD) to St. Louis (STL) the cheapest?

    Airlines adjust prices for flights from Sioux Falls to St. Louis based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.

  • How much do flights from Sioux Falls (FSD) to St. Louis (STL) cost?

    According to Trip.com's data, the lowest price is around KWD 115.

  • How many airports are there in St. Louis (STL)?

    There are 2 airport(s) near St. Louis (STL): St. Louis Downtown Airport and St. Louis Lambert International Airport.

How to find a cheap flight from Sioux Falls to St. Louis

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Sioux Falls to St. Louis. Book your flights at the right time and save more.
1
Being flexible with your dates to get the cheapest Sioux Falls to St. Louis ticket.
Tap "Date" on flight search bar to scan through the calender for Sioux Falls to St. Louis airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Sun, Aug 31 at KWD 29 for one-way flights.
2
Compare cheap Sioux Falls to St. Louis flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from Sioux Falls to St. Louis. The cheapest airline operating is Delta Air Lines.
3
Set up a Price Alert
By setting up a Price Alert for your Sioux Falls to St. Louis route, you can easily track the price of your airline tickets from without manually checking every day.
4
Don't miss cheap Sioux Falls to St. Louis flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights. If registering a free membership, you can receive more deals for your flights.
5
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
6
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com and search for cheap flight tickets from Sioux Falls to St. Louis to get exclusive deals for you.

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