$425+ Cheap flights from Sioux Falls (FSD) to Saint Thomas Island (STT)
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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — STT
May 17 — May 241
Round-trip
1 adult, Economy
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Find cheap flights from Sioux Falls to Saint Thomas Island with Cheapflights
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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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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Sioux Falls to Saint Thomas Island
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Best
Last-minute
One-way
Cheapest flights from Sioux Falls to Saint Thomas IslandExplore the most affordable flight options available from Sioux Falls to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2026.
Explore the most affordable flight options available from Sioux Falls to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2026.
This American Airlines deal was found by Cheapflights users on 4/14. 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 4/291:41 pm
FSD
- STT
2 stops20h 54m
American Airlines
Wed 5/65:05 pm
STT
- FSD
2 stops20h 51m
American Airlines
Deal found 4/14![American Airlines logo]()
$425
This Kiwi.com deal was found by Cheapflights users on 4/15. 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.
Sun 4/269:35 am
FSD
- STT
1 stop23h 19m
Multiple Airlines
Sat 5/212:25 pm
STT
- FSD
2 stops23h 20m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$498
This United Airlines deal was found by Cheapflights users on 4/14. 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 4/296:10 am
FSD
- STT
1 stop8h 21m
United Airlines
Wed 5/62:10 pm
STT
- FSD
2 stops11h 39m
United Airlines
Deal found 4/14![United Airlines logo]()
$575
This American Airlines deal was found by Cheapflights users on 4/15. 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 4/257:39 pm
FSD
- STT
2 stops19h 36m
American Airlines
Sat 5/25:05 pm
STT
- FSD
2 stops20h 52m
American Airlines
Deal found 4/15![American Airlines logo]()
$625
This United Airlines deal was found by Cheapflights users on 4/13. 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 5/106:00 am
FSD
- STT
2 stops29h 20m
United Airlines
Wed 5/131:22 pm
STT
- FSD
2 stops11h 21m
United Airlines
Deal found 4/13![United Airlines logo]()
$682
This American Airlines deal was found by Cheapflights users on 4/14. 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 5/304:46 pm
FSD
- STT
2 stops22h 12m
American Airlines
Sat 6/61:34 pm
STT
- FSD
2 stops23h 00m
American Airlines
Deal found 4/14![American Airlines logo]()
$730
This American Airlines deal was found by Cheapflights users on 4/16. 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 5/295:35 pm
FSD
- STT
2 stops16h 28m
American Airlines
Sat 6/61:34 pm
STT
- FSD
2 stops23h 00m
American Airlines
Deal found 4/16![American Airlines logo]()
$764
Best flights from Sioux Falls to Saint Thomas IslandDiscover carefully curated flight deals from Sioux Falls to Saint Thomas Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2026.
Discover carefully curated flight deals from Sioux Falls to Saint Thomas Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2026.
This United Airlines deal was found by Cheapflights users on 4/14. 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 5/107:30 am
FSD
- STT
2 stops28h 38m
United Airlines
Wed 5/131:22 pm
STT
- FSD
2 stops11h 21m
United Airlines
Deal found 4/14![United Airlines logo]()
$726
This American Airlines deal was found by Cheapflights users on 4/12. 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 5/304:46 pm
FSD
- STT
2 stops22h 12m
American Airlines
Sat 6/61:34 pm
STT
- FSD
2 stops23h 00m
American Airlines
Deal found 4/12![American Airlines logo]()
$730
This United Airlines deal was found by Cheapflights users on 4/15. 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 4/296:10 am
FSD
- STT
1 stop8h 21m
United Airlines
Sun 5/32:10 pm
STT
- FSD
2 stops21h 34m
United Airlines
Deal found 4/15![United Airlines logo]()
$850
Last-minute flights from Sioux Falls to Saint Thomas IslandDiscover last-minute flight deals from Sioux Falls to Saint Thomas Island. Data last updated April 17, 2026 and is based on user searches.
Discover last-minute flight deals from Sioux Falls to Saint Thomas Island. Data last updated April 17, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 4/15. 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 4/257:39 pm
FSD
- STT
2 stops19h 36m
American Airlines
Sat 5/25:05 pm
STT
- FSD
2 stops20h 52m
American Airlines
Deal found 4/15![American Airlines logo]()
$625
This Kiwi.com deal was found by Cheapflights users on 4/15. 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.
Sun 4/269:35 am
FSD
- STT
1 stop23h 19m
Multiple Airlines
Sat 5/212:25 pm
STT
- FSD
2 stops23h 20m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$498
This American Airlines deal was found by Cheapflights users on 4/14. 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 4/291:41 pm
FSD
- STT
2 stops20h 54m
American Airlines
Wed 5/65:05 pm
STT
- FSD
2 stops20h 51m
American Airlines
Deal found 4/14![American Airlines logo]()
$425
This United Airlines deal was found by Cheapflights users on 4/14. 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 4/296:10 am
FSD
- STT
1 stop8h 21m
United Airlines
Wed 5/62:10 pm
STT
- FSD
2 stops11h 39m
United Airlines
Deal found 4/14![United Airlines logo]()
$575
This United Airlines deal was found by Cheapflights users on 4/13. 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 5/106:00 am
FSD
- STT
2 stops29h 20m
United Airlines
Wed 5/131:22 pm
STT
- FSD
2 stops11h 21m
United Airlines
Deal found 4/13![United Airlines logo]()
$682
This American Airlines deal was found by Cheapflights users on 4/16. 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 5/295:35 pm
FSD
- STT
2 stops16h 28m
American Airlines
Sat 6/61:34 pm
STT
- FSD
2 stops23h 00m
American Airlines
Deal found 4/16![American Airlines logo]()
$764
This American Airlines deal was found by Cheapflights users on 4/14. 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 5/304:46 pm
FSD
- STT
2 stops22h 12m
American Airlines
Sat 6/61:34 pm
STT
- FSD
2 stops23h 00m
American Airlines
Deal found 4/14![American Airlines logo]()
$730
One-way flights from Sioux Falls to Saint Thomas IslandSearch for one-way flight options from Sioux Falls to Saint Thomas Island. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
Search for one-way flight options from Sioux Falls to Saint Thomas Island. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
This Delta deal was found by Cheapflights users on 4/12. 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.
Sun 9/275:25 am
FSD
- STT
1 stop7h 19m
Delta
Deal found 4/12![Delta logo]()
$833
This Delta deal was found by Cheapflights users on 4/12. 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.
Mon 9/285:25 am
FSD
- STT
1 stop7h 19m
Delta
Deal found 4/12![Delta logo]()
$1,064
This United Airlines deal was found by Cheapflights users on 4/12. 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 10/26:20 pm
FSD
- STT
2 stops20h 23m
United Airlines
Deal found 4/12![United Airlines logo]()
$1,182
This Delta deal was found by Cheapflights users on 4/12. 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.
Tue 9/295:25 am
FSD
- STT
1 stop7h 19m
Delta
Deal found 4/12![Delta logo]()
$1,192
This United Airlines deal was found by Cheapflights users on 4/12. 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.
Sat 9/266:00 am
FSD
- STT
2 stops10h 20m
United Airlines
Deal found 4/12![United Airlines logo]()
$1,366
This United Airlines deal was found by Cheapflights users on 4/12. 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 9/296:00 am
FSD
- STT
2 stops10h 20m
United Airlines
Deal found 4/12![United Airlines logo]()
$1,532
This United Airlines deal was found by Cheapflights users on 4/12. 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 9/306:00 am
FSD
- STT
2 stops34h 20m
United Airlines
Deal found 4/12![United Airlines logo]()
$1,538
This United Airlines deal was found by Cheapflights users on 4/12. 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 10/16:00 am
FSD
- STT
2 stops10h 20m
United Airlines
Deal found 4/12![United Airlines logo]()
$1,677
This Delta deal was found by Cheapflights users on 4/12. 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.
Thu 10/15:25 am
FSD
- STT
1 stop7h 19m
Delta
Deal found 4/12![Delta logo]()
$1,883
This United Airlines deal was found by Cheapflights users on 4/12. 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 9/283:16 pm
FSD
- STT
2 stops25h 04m
United Airlines
Deal found 4/12![United Airlines logo]()
$1,921
This Delta deal was found by Cheapflights users on 4/12. 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.
Sat 9/265:25 am
FSD
- STT
1 stop7h 19m
Delta
Deal found 4/12![Delta logo]()
$2,492
This United Airlines deal was found by Cheapflights users on 4/12. 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 9/277:40 am
FSD
- STT
2 stops32h 40m
United Airlines
Deal found 4/12![United Airlines logo]()
$2,744
Find flight deals from Sioux Falls to Saint Thomas Island
Discover tips and strategies to find the most affordable flight options for your journey from Sioux Falls (FSD) to Saint Thomas Island (STT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $425 (American Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Sioux Falls to Saint Thomas Island 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 2,558,603 searches. Data last updated April 17, 2026.
Use the filters below to find and compare flights from Sioux Falls to Saint Thomas Island that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Sioux FallsSaint Thomas Island
FSD - STT
FSDSTT
Sioux Falls Joe Foss Field
Sun 5/10
7:30 am-1:08 pm
2 stops28h 38m
Saint Thomas Island Cyril E King
Wed 5/13
1:22 pm-11:43 pm
2 stops11h 21m
$726
Sioux FallsSaint Thomas Island
FSD - STT
FSDSTT
Sioux Falls Joe Foss Field
Sat 5/30
4:46 pm-3:58 pm
2 stops22h 12m
Saint Thomas Island Cyril E King
Sat 6/6
1:34 pm-11:34 am
2 stops23h 00m
$730
Quickest round-trip
Sioux FallsSaint Thomas Island
FSD - STT
FSDSTT
Sioux Falls Joe Foss Field
Wed 4/29
6:10 am-3:31 pm
1 stop8h 21m
Saint Thomas Island Cyril E King
Sun 5/3
2:10 pm-10:44 am
2 stops21h 34m
$850
Cheapest one-way
Quickest one-way
Sioux FallsSaint Thomas Island
FSD - STT
FSDSTT
Sioux Falls Joe Foss Field
Tue 9/29
5:25 am-1:44 pm
1 stop7h 19m
$1,192
Sioux FallsSaint Thomas Island
FSD - STT
FSDSTT
Sioux Falls Joe Foss Field
Tue 9/29
6:00 am-5:20 pm
2 stops10h 20m
$1,532
Sioux FallsSaint Thomas Island
FSD - STT
FSDSTT
Sioux Falls Joe Foss Field
Wed 9/30
6:00 am-5:20 pm
2 stops34h 20m
$1,538
Sioux FallsSaint Thomas Island
FSD - STT
FSDSTT
Sioux Falls Joe Foss Field
Thu 10/1
6:00 am-5:20 pm
2 stops10h 20m
$1,677
Sorted by cheapest first
Compare providers for flights from Sioux Falls to Saint Thomas Island
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sioux Falls to Saint Thomas Island in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on Sioux Falls-Saint Thomas Island flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sioux Falls-Saint Thomas Island flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sioux Falls-Saint Thomas Island flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Sioux Falls-Saint Thomas Island flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sioux Falls-Saint Thomas Island flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Sioux Falls to Saint Thomas Island
Have a flexible travel schedule? Discover the best time to fly to Saint Thomas Island from Sioux Falls with our price prediction graph.
FSD-STT
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.
Reviews of airlines servicing Saint Thomas Island
Get insights into the airlines that provide service to Saint Thomas Island. 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 Saint Thomas Island. Reviews last updated April 17, 2026.
Peruse reviews from past customers who have flown with Delta and American Airlines from Sioux Falls to Saint Thomas Island to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Food
7.2
Comfort
7.9
Crew
8.5
Overall
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Food
7.2
Comfort
7.9
Crew
8.5
Overall
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Food
7.2
Comfort
7.9
Crew
8.5
Overall
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from Sioux Falls to Saint Thomas Island. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Saint Thomas Island?
Book flights to Saint Thomas Island if you plan to visit one of these locationsSt. John
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Sioux Falls and Saint Thomas Island flights
Browse other Sioux Falls and Saint Thomas Island flight options. Last updated on April 17, 2026.
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Other flights to Saint Thomas Island
Explore flights to Saint Thomas Island departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 17, 2026.
Top 2 airlines flying from Sioux Falls to Saint Thomas Island
Discover the top 2 airlines that operate flights from Sioux Falls to Saint Thomas Island. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$400 | Average$654 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$509 | Average$689 | FlexibilityNo cancel fee | On-timeN/A |