Skip to main content
Beginning of main content

FSD (Sioux Falls) to STL (St. Louis) Flights $286.02

Search over 321,000 hotels worldwide and 400 airlines worldwide.
Secure incredible value with Expedia's Price Guarantee.
No Expedia cancellation fee to change or cancel almost any hotel reservation.

Cheap FSD to STL Flights

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 : If your plans are flexible, have you considered changing your departure day?
Answer : The lowest-cost day to fly in August is Friday. Having flexibility in your travel plans means you can save more, so be sure to plan ahead when possible.

Question : What day in the next four weeks has the best fares?
Answer : As of Jul 17th, the cheapest day to fly from Sioux Falls to Saint Louis is Jul 27th. Tickets are currently being sold for $257, which is 29% below the average price for this route.

Question : How many days should you spend in Saint Louis?
Answer : Travelers from FSD to STL stay four days on average.

Question : Are you paying the cheapest or highest price for your ticket to Saint Louis?
Answer : Flight prices change much more than most routes in the United States for FSD to STL. They range anywhere from $257 to $1,368. Prices tend to be lower the further out you book.

Question : Over the coming months, which airline is getting their passengers to Lambert-St. Louis International Airport (STL) round-trip the cheapest?
Answer : American Airlines is your best bet for finding that coveted low fare. They're offering fares as low as $257, while prices for other flights are as high as $1,368.