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Cheap Flights from Sioux Falls to St. Louis $222.11

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Cheapest Flights from Sioux Falls to St. Louis (FSD to STL)

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Interesting Facts About Flights from Sioux Falls to St. Louis (FSD to STL)

Question : In the next four weeks, what day should you book your trip?
Answer : As of January 23rd, the best day for deals to Saint Louis (STL) from Sioux Falls (FSD) is February 10th. Bookings have been made roughly 15% below the average price for this route.

Question : Do travelers from Sioux Falls typically stay in Saint Louis for very long?
Answer : Over the next two months, passengers from FSD to STL are planning on staying for four days on average.

Question : Will you do what it takes to get the absolute cheapest flight?
Answer : Friday is your lowest-cost day to fly in February. Flexibility is paramount when booking travel plans in order to keep costs down.

Question : How often are prices changing for this route?
Answer : Flight prices for FSD to STL change much more than most routes. Prices tend to be lower the further out you book.