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Flights from Sioux Falls to St. Louis

Top Airlines Flying from Sioux Falls to St. Louis

Choose from 0 carriers that fly from Sioux Falls to St. Louis, including , Enjoy the cheapest tickets on this route with American Airlines.

Find flight deals from Sioux Falls to St. Louis for the next 3 months. Book one way flights from IDR 1,997,284 or round trip flights from IDR 3,658,554.

      • FSD 5:28 PM
        5h 19m
        1 stop
        STL 10:47 PM
        Sioux Falls - St. Louis | Sat, Dec 6 | American Airlines
        STL 7:43 PM
        17h 48m
        1 stop
        FSD 1:31 PM
        St. Louis - Sioux Falls | Wed, Dec 10 | Frontier Airlines
        IDR 3,658,554 IDR 5,348,830
        32% OFF
        32% OFF
        IDR 5,348,830 IDR 3,658,554
      • FSD 1:09 PM
        6h 18m
        1 stop
        STL 7:27 PM
        Sioux Falls - St. Louis | Thu, Dec 4 | American Airlines
        STL 5:40 PM
        4h 49m
        1 stop
        FSD 10:29 PM
        St. Louis - Sioux Falls | Wed, Dec 10 | American Airlines
        IDR 3,813,637 IDR 5,348,830
        28% OFF
        28% OFF
        IDR 5,348,830 IDR 3,813,637
      • FSD 1:30 PM
        3h 19m
        1 stop
        STL 4:49 PM
        Sioux Falls - St. Louis | Tue, Dec 2 | Delta Air Lines
        STL 6:00 AM
        4h 20m
        1 stop
        FSD 10:20 AM
        St. Louis - Sioux Falls | Sat, Dec 6 | Delta Air Lines
        IDR 3,973,420 IDR 5,348,830
        26% OFF
        26% OFF
        IDR 5,348,830 IDR 3,973,420
      • FSD 5:31 PM
        5h 28m
        1 stop
        STL 10:59 PM
        Sioux Falls - St. Louis | Tue, Dec 2 | American Airlines
        STL 10:44 PM
        13h 36m
        1 stop
        FSD 12:20 PM
        St. Louis - Sioux Falls | Fri, Dec 5 | Frontier Airlines
        IDR 4,267,138
        20% OFF
        IDR 5,348,830 IDR 4,267,138
      • FSD 6:08 PM
        4h 37m
        1 stop
        STL 10:45 PM
        Sioux Falls - St. Louis | Thu, Dec 4 | United Airlines
        STL 1:35 PM
        6h 46m
        1 stop
        FSD 8:21 PM
        St. Louis - Sioux Falls | Wed, Dec 10 | United Airlines
        IDR 4,504,463
        16% OFF
        IDR 5,348,830 IDR 4,504,463
      • FSD 9:00 AM
        7h 28m
        1 stop
        STL 4:28 PM
        Sioux Falls - St. Louis | Wed, Dec 3 | United Airlines
        STL 6:30 AM
        4h 15m
        1 stop
        FSD 10:45 AM
        St. Louis - Sioux Falls | Sun, Dec 7 | United Airlines
        IDR 4,567,906
        15% OFF
        IDR 5,348,830 IDR 4,567,906
      • FSD 5:18 AM
        3h 37m
        1 stop
        STL 8:55 AM
        Sioux Falls - St. Louis | Sat, Nov 29 | Delta Air Lines
        STL 5:34 PM
        5h 38m
        1 stop
        FSD 11:12 PM
        St. Louis - Sioux Falls | Wed, Dec 3 | Delta Air Lines
        IDR 4,626,649
        14% OFF
        IDR 5,348,830 IDR 4,626,649
      • FSD 7:29 PM
        13h 19m
        1 stop
        STL 8:48 AM
        Sioux Falls - St. Louis | Tue, Dec 30 | American Airlines
        STL 8:01 PM
        3h 58m
        1 stop
        FSD 11:59 PM
        St. Louis - Sioux Falls | Sat, Jan 3 | American Airlines
        IDR 4,833,427
        10% OFF
        IDR 5,348,830 IDR 4,833,427
      • FSD 9:00 AM
        7h 28m
        1 stop
        STL 4:28 PM
        Sioux Falls - St. Louis | Tue, Dec 2 | United Airlines
        STL 5:27 PM
        4h 24m
        1 stop
        FSD 9:51 PM
        St. Louis - Sioux Falls | Sat, Dec 6 | United Airlines
        IDR 4,962,663
        7% OFF
        IDR 5,348,830 IDR 4,962,663
      • FSD 4:25 PM
        5h 51m
        1 stop
        STL 10:16 PM
        Sioux Falls - St. Louis | Tue, Dec 30 | Delta Air Lines
        STL 6:05 AM
        4h 21m
        1 stop
        FSD 10:26 AM
        St. Louis - Sioux Falls | Sat, Jan 3 | Delta Air Lines
        IDR 4,974,412
        7% OFF
        IDR 5,348,830 IDR 4,974,412
      • FSD 1:00 PM
        17h 25m
        1 stop
        STL Invalid Date
        Sioux Falls - St. Louis | Thu, Nov 27 | Normal Airline
        STL 3:00 PM
        6h
        Nonstop
        FSD 4:00 PM
        St. Louis - Sioux Falls | Sat, Nov 29 | Normal Airline
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        Find More Flights

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

Flying from 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 July. The off-season for travel is December.

Cheapest one-way flight priceIDR 1,997,284
Cheapest round-trip ticket priceIDR 3,658,554
Off-season for travelDecember
Peak season for travelJuly
Flight distance778.52 km

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

The cheapest time for Sioux Falls to St. Louis flights: Feb 8 to Feb 15 — one way flight prices from IDR 1,994,934.

Cheapest flights
From price
Search
  • 2330

  • Dec

    307
  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
  • 18
  • 815
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • What are the cheapest flights from Sioux Falls to St. Louis (FSD-STL)?

    Based on Trip.com data, Delta Air Lines offers one-way fares as low as IDR 1,997,284 on Cheapest nonstop routes (e.g. FSD to STL on Tue, Dec 16), while American Airlines offers Cheapest nonstop round-trips from IDR 3,658,554 departing on Sat, Dec 6 and returning on Wed, Dec 10.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Sioux Falls to St. Louis is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Sioux Falls to St. Louis, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Dec 16, with one-way flights priced at just IDR 1,997,284.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Delta Air Lines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for St. Louis travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Sioux Falls to St. Louis is December, when demand for travel is lower.
  • After crunching the numbers on our November flight calendar, it's currently cheapest to fly from Sioux Falls to St. Louis on November 29, 2025 with Delta Air Lines, with prices starting at IDR 4,626,648.
  • The time difference between St. Louis and Sioux Falls is 0h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

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