Cheap Flights from Sioux Falls to St Louis

Compare Sioux Falls to St Louis flight deals

Find the cheapest month or even day of the year to fly to St Louis

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Flight deals from Sioux Falls to St Louis

Looking for a cheap last-minute deal or the best return flight from Sioux Falls to St Louis? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Sioux Falls to St Louis

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Sioux Falls to St Louis flights are currently cheapest in September.

Sioux Falls to St Louis: Alternative routes

Compare routes from Sioux Falls to St Louis below. You may find an airport to fly into that's cheaper, faster, or easier than St Louis.

Sioux Falls to St Louis: Flight information

The things to know before you go.
Cheapest flight foundRs28,020
Cheapest month to flySeptember

Finding cheap flights from Sioux Falls to St Louis: Frequently asked questions

The best price we found for a return flight from Sioux Falls to St Louis is Rs67,333. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Sioux Falls to St Louis. But we found flights with one or more stops from Rs67,333.
As of August 2025, there are no flights flying from Sioux Falls to St Louis.
The cheapest month to fly from Sioux Falls to St Louis is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Sioux Falls Airport to St Louis Airport on Wednesday, 3 September 2025.
No airlines currently offer direct flights between Sioux Falls Airport and St Louis Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to St Louis but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to St Louis is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta offers the cheapest flight tickets to St Louis.

Travelling from Joe Foss Field Airport (FSD) to Lambert-St. Louis International Airport (STL): what you need to know

  • St Louis's timezone is UTC-5, which is the same as Sioux Falls.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This way, you'll have plenty of time to board your FSD to STL flight.

  • During popular months like January, you'll want to get to the airport earlier than usual. Arrive two hours before a domestic departure and four hours ahead of an international flight when you fly during peak periods in general.

  • Consider adding a stopover when booking your ticket from Joe Foss Field Airport to Lambert-St. Louis International Airport. Simply uncheck 'Direct flights only' to break up your trip, or maybe even explore a new city along the way. Here are some options between FSD and STL:

    • O'Hare International Airport

    • Minneapolis-St. Paul International Airport

    • Nashville International Airport

How to find the cheapest flights from Joe Foss Field Airport (FSD) to Lambert-St. Louis International Airport (STL)

  • At the moment, Rs28,020 is the lowest price we've seen for a one-way Joe Foss Field Airport to Lambert-St. Louis International Airport flight. The best price for a return ticket is Rs67,333. Keep in mind that fares may change due to availability at the time of booking.

  • It's usually best to book ahead of time if you want to find cheap tickets from FSD to STL. That's because flight prices are based on demand, which tends to increase closer to departure.

  • Finding cheap flights from Joe Foss Field Airport to Lambert-St. Louis International Airport is easy if you can be flexible with your travel plans. Use the 'Whole month' tool to see the lowest prices across the month and score a great deal.

  • Getting your hands on cheap flights from FSD to STL is a cinch with Price Alerts. All you need to do is set up one of these automatic alerts and we'll notify you as soon as a lower fare pops up.

  • Tailor your flights with filters. Pick your preferred arrival and departure times, airlines and total journey duration. You can also sort results by 'Cheapest,' 'Best' or 'Fastest' flights from Joe Foss Field Airport to Lambert-St. Louis International Airport.

Handy information about Joe Foss Field Airport (FSD)

  • The address for FSD is 2801 Jaycee Lane.

  • 75.18% of flights that take off from Joe Foss Field Airport arrive at their destination on time.

  • Joe Foss Field Airport is about 5 kilometres from central Sioux Falls. If you're catching a cab, ride-sharing or driving from the centre, it'll take 10 minutes or so to arrive, depending on the traffic.

  • Expect a trip time of roughly 1 hour 35 minutes when using public transport.

  • Get your break off to a leisurely start by staying near FSD. Whether you're taking an early flight from Joe Foss Field Airport to Lambert-St. Louis International Airport or just don't want to be rushed, these stays are perfect:

Arriving at Lambert-St. Louis International Airport (STL)

Getting from Lambert-St. Louis International Airport (STL) to central St Louis

  • The street address for STL is 10701 Lambert International Blvd..

  • From Lambert-St. Louis International Airport, St Louis is approximately 26 kilometres away. It takes around 20 minutes to get to the centre driving.

  • Getting there by public transport takes around 35 minutes.

When to fly to Lambert-St. Louis International Airport (STL)

  • The quietest month for a flight from Joe Foss Field Airport to Lambert-St. Louis International Airport is April, while July is the busiest. Choose the ideal time to visit St Louis based on whether you prefer a more fast-paced or easygoing experience.

  • Book your flight from Joe Foss Field Airport to Lambert-St. Louis International Airport for July if you want to go to St Louis during its warmest month. You can expect temperatures of between 17ºC and 33ºC.

  • Search for cheap tickets from FSD to STL in January if you want to travel in cooler conditions. Temperatures are at their lowest around then, ranging between -8ºC and 7ºC on average.

Explore more of United States

  • St Louis is easy to fall in love with, but there are so many other parts of United States just waiting to be explored. Around 418 kilometres north-east of St Louis, a visit to Chicago will keep your itinerary packed. Start with leading sights like Millennium Park, Art Institute of Chicago and LandShark Beer Garden at Navy Pier.

  • Indianapolis is another essential stop in United States and is around 370 kilometres east of St Louis. No journey is complete without experiencing The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.