$274+ Cheap flights from St. Louis (STL) to South Dakota
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
STL — FSD
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to South Dakota with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Best
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One-way
Cheapest flights from St. Louis to South DakotaExplore the most affordable flight options available from St. Louis to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
Explore the most affordable flight options available from St. Louis to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
This American Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:32 am -
1 stop5h 41m
Fri 10/235:54 pm -
1 stop5h 48m
Deal found 9/8![American Airlines logo]()
$290
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/31:49 pm -
1 stop4h 22m
Mon 10/55:54 pm -
1 stop5h 48m
Deal found 9/9![American Airlines logo]()
$299
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:36 pm -
1 stop6h 44m
Tue 10/67:50 am -
1 stop4h 23m
Deal found 9/8![United Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/225:18 pm -
1 stop7h 11m
Sat 9/265:59 pm -
1 stop5h 44m
Deal found 9/7![American Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/25:00 am -
1 stop6h 36m
Tue 10/67:39 pm -
1 stop4h 40m
Deal found 9/5![American Airlines logo]()
$333
This American Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/205:43 am -
1 stop5h 04m
Wed 9/304:56 pm -
1 stop5h 47m
Deal found 9/5![American Airlines logo]()
$334
This American Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:40 am -
1 stop5h 14m
Wed 10/145:04 pm -
1 stop5h 38m
Deal found 9/7![American Airlines logo]()
$345
This American Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/275:43 am -
1 stop5h 04m
Sun 10/46:07 pm -
1 stop5h 20m
Deal found 9/8![American Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:50 am -
1 stop7h 35m
Mon 11/29:32 am -
1 stop7h 25m
Deal found 9/8![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/161:36 pm -
1 stop5h 16m
Fri 10/21:37 pm -
1 stop6h 44m
Deal found 9/9![United Airlines logo]()
$383
This American Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:40 am -
1 stop5h 14m
Sun 10/185:04 pm -
1 stop5h 38m
Deal found 9/6![American Airlines logo]()
$386
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:00 am -
1 stop5h 15m
Sat 10/248:45 am -
1 stop6h 45m
Deal found 9/9![United Airlines logo]()
$399
Best flights from St. Louis to South DakotaDiscover carefully curated flight deals from St. Louis to South Dakota that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from St. Louis to South Dakota that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:36 pm -
1 stop6h 44m
Tue 10/67:50 am -
1 stop4h 23m
Deal found 9/8![United Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:34 pm -
1 stop6h 14m
Mon 9/285:59 pm -
1 stop5h 44m
Deal found 9/9![American Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/306:30 am -
1 stop3h 47m
Sat 1/25:10 pm -
1 stop4h 37m
Deal found 9/6![Delta logo]()
$456
This American Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/205:43 am -
1 stop5h 04m
Wed 9/304:56 pm -
1 stop5h 47m
Deal found 9/5![American Airlines logo]()
$334
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:50 am -
1 stop7h 35m
Mon 11/29:32 am -
1 stop7h 25m
Deal found 9/8![United Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:32 am -
1 stop5h 41m
Sat 10/2412:53 pm -
1 stop6h 55m
Deal found 9/7![American Airlines logo]()
$395
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:00 am -
1 stop5h 15m
Sat 10/248:45 am -
1 stop6h 45m
Deal found 9/8![United Airlines logo]()
$399
This American Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:21 am -
2 stops9h 59m
Tue 10/65:54 pm -
1 stop5h 48m
Deal found 9/5![American Airlines logo]()
$400
This American Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/308:22 pm -
1 stop4h 24m
Sat 1/27:35 pm -
1 stop4h 24m
Deal found 9/5![American Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/264:39 pm -
1 stop5h 04m
Fri 10/305:50 pm -
1 stop26h 09m
Deal found 9/8![United Airlines logo]()
$507
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/712:20 pm -
2 stops11h 10m
Wed 10/145:00 am -
2 stops9h 21m
Deal found 9/7![United Airlines logo]()
$544
This American Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:00 am -
2 stops12h 25m
Sun 10/185:04 pm -
1 stop5h 38m
Deal found 9/6![American Airlines logo]()
$578
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:00 am -
1 stop27h 15m
Fri 10/161:37 pm -
1 stop6h 44m
Deal found 9/9![United Airlines logo]()
$604
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/206:55 pm -
1 stop4h 38m
Wed 9/3011:17 am -
3 stops27h 26m
Deal found 9/8![United Airlines logo]()
$612
Last-minute flights from St. Louis to South DakotaDiscover last-minute flight deals from St. Louis to South Dakota. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to South Dakota. Data last updated September 10, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/161:36 pm -
1 stop5h 16m
Fri 10/21:37 pm -
1 stop6h 44m
Deal found 9/9![United Airlines logo]()
$383
This American Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/205:43 am -
1 stop5h 04m
Wed 9/304:56 pm -
1 stop5h 47m
Deal found 9/5![American Airlines logo]()
$334
This American Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/225:18 pm -
1 stop7h 11m
Sat 9/265:59 pm -
1 stop5h 44m
Deal found 9/7![American Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/275:43 am -
1 stop5h 04m
Sun 10/46:07 pm -
1 stop5h 20m
Deal found 9/8![American Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:36 pm -
1 stop6h 44m
Tue 10/67:50 am -
1 stop4h 23m
Deal found 9/8![United Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/25:00 am -
1 stop6h 36m
Tue 10/67:39 pm -
1 stop4h 40m
Deal found 9/5![American Airlines logo]()
$333
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/31:49 pm -
1 stop4h 22m
Mon 10/55:54 pm -
1 stop5h 48m
Deal found 9/9![American Airlines logo]()
$299
This American Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:40 am -
1 stop5h 14m
Wed 10/145:04 pm -
1 stop5h 38m
Deal found 9/7![American Airlines logo]()
$345
This American Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:40 am -
1 stop5h 14m
Sun 10/185:04 pm -
1 stop5h 38m
Deal found 9/6![American Airlines logo]()
$386
This American Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:32 am -
1 stop5h 41m
Fri 10/235:54 pm -
1 stop5h 48m
Deal found 9/8![American Airlines logo]()
$290
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:00 am -
1 stop5h 15m
Sat 10/248:45 am -
1 stop6h 45m
Deal found 9/9![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/304:39 pm -
1 stop7h 05m
Mon 11/26:40 pm -
1 stop4h 44m
Deal found 9/9![United Airlines logo]()
$369
One-way flights from St. Louis to South DakotaSearch for one-way flight options from St. Louis to South Dakota. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from St. Louis to South Dakota. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This American Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:40 am -
1 stop5h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![American Airlines logo]()
$274
This Kiwi.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/72:29 pm -
3 stops24h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$284
This United Airlines deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/131:29 pm -
2 stops8h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![United Airlines logo]()
$289
This American Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/215:18 pm -
1 stop7h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![American Airlines logo]()
$323
This American Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2611:01 am -
2 stops9h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![American Airlines logo]()
$328
This United Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:00 am -
2 stops26h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![United Airlines logo]()
$512
Find flight deals from St. Louis to South Dakota
Keep the following information in mind while searching for St. Louis to South Dakota flight deals. Data was last updated September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $290 (American Airlines) |
One-way from | $274 (American Airlines) |
Popular in | July |
Cheapest in | September |
Average price | $297 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to South Dakota that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 10, 2026.
Use the filters below to find and compare flights from St. Louis to South Dakota that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
St. LouisRapid City
STL Lambert-St Louis - RAP Rapid City
STLRAP
Lambert-St Louis
Thu 10/8
5:40 am-9:54 am
1 stop5h 14m
Rapid City
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$274
St. LouisRapid City
STL Lambert-St Louis - RAP Rapid City
STLRAP
Lambert-St Louis
Wed 10/7
2:29 pm-1:45 pm
3 stops24h 16m
Rapid City
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$284
St. LouisSioux Falls
STL Lambert-St Louis - FSD Sioux Falls Joe Foss Field
STLFSD
Lambert-St Louis
Fri 10/2
1:36 pm-8:20 pm
1 stop6h 44m
Sioux Falls Joe Foss Field
Tue 10/6
7:50 am-12:13 pm
1 stop4h 23m
$319
St. LouisSioux Falls
STL Lambert-St Louis - FSD Sioux Falls Joe Foss Field
STLFSD
Lambert-St Louis
Sat 9/26
12:46 pm-8:45 pm
1 stop7h 59m
Sioux Falls Joe Foss Field
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$323
St. LouisSioux Falls
STL Lambert-St Louis - FSD Sioux Falls Joe Foss Field
STLFSD
Lambert-St Louis
Mon 9/21
5:18 pm-12:29 am
1 stop7h 11m
Sioux Falls Joe Foss Field
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$323
St. LouisSioux Falls
STL Lambert-St Louis - FSD Sioux Falls Joe Foss Field
STLFSD
Lambert-St Louis
Thu 9/24
3:34 pm-9:48 pm
1 stop6h 14m
Sioux Falls Joe Foss Field
Mon 9/28
5:59 pm-11:43 pm
1 stop5h 44m
$329
St. LouisRapid City
STL Lambert-St Louis - RAP Rapid City
STLRAP
Lambert-St Louis
Sun 9/20
5:43 am-9:47 am
1 stop5h 04m
Rapid City
Wed 9/30
4:56 pm-11:43 pm
1 stop5h 47m
$334
St. LouisSioux Falls
STL Lambert-St Louis - FSD Sioux Falls Joe Foss Field
STLFSD
Lambert-St Louis
Fri 10/30
8:50 am-4:25 pm
1 stop7h 35m
Sioux Falls Joe Foss Field
Mon 11/2
9:32 am-4:57 pm
1 stop7h 25m
$369
St. LouisSioux Falls
STL Lambert-St Louis - FSD Sioux Falls Joe Foss Field
STLFSD
Lambert-St Louis
Thu 10/15
6:32 am-12:13 pm
1 stop5h 41m
Sioux Falls Joe Foss Field
Sat 10/24
12:53 pm-7:48 pm
1 stop6h 55m
$395
St. LouisRapid City
STL Lambert-St Louis - RAP Rapid City
STLRAP
Lambert-St Louis
Wed 10/21
6:00 am-10:15 am
1 stop5h 15m
Rapid City
Sat 10/24
8:45 am-4:30 pm
1 stop6h 45m
$399
Showing 1-10 of 20 resultsSorted by cheapest first
Best time to book a flight from St. Louis to South Dakota
Have a flexible travel schedule? Discover the best time to fly to South Dakota from St. Louis with our price prediction graph.
STL-FSD
STL-RAP
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to South Dakota
STL-USSD
STL-FSD
STL-RAP
What is the cheapest month to book a flight from St. Louis to South Dakota?
Currently, January is the cheapest month in which you can book a flight from St. Louis to South Dakota (average of $319). Flying from St. Louis to South Dakota in August is currently the most expensive (average of $442). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from St. Louis to South Dakota?
Airfare is below average for this route at the moment.
St. Louis to South Dakota flights typically cost between $297 and $417 in October.The cheapest round-trip price found within the last 5 days was $290 on American Airlines (Oct 14-Oct 23).
Reviews of airlines servicing South Dakota
Get insights into the airlines that provide service to South Dakota. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to South Dakota. Reviews last updated September 10, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican Airlines from St. Louis to South Dakota to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.5
Food
7.2
Comfort
7.8
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Boarding
8.1
Crew
8.5
Food
7.2
Comfort
7.8
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Boarding
8.1
Crew
8.5
Food
7.2
Comfort
7.8
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Boarding
8.1
Crew
8.5
Food
7.2
Comfort
7.8
Entertainment
7.8
Overall
7.8
Reviews
1 / 20
8.0
ExcellentJorge,Aug 2026
TPA - ATL
Related info for your journey
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| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$248 | Average$361 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$268 | Average$392 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$293 | Average$411 | FlexibilityNo cancel fee | On-time71% |