What is the cheapest month to fly from South Dakota to Saint Thomas Island?

August is one of the best times of the year to fly to Saint Thomas Island from South Dakota. Prices for August average $708 per person but you can even find prices for as low as $477. The most expensive prices can be found in the month of June. Opting for a August flight can save you 40% on your journey compared to booking in June

What is the cheapest time of day to fly from SD to STT?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from South Dakota to Saint Thomas Island as you normally would.

How can I find direct flights from South Dakota to Saint Thomas Island?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from South Dakota to Saint Thomas Island.

Can I find deals for business class flights from South Dakota to Saint Thomas Island?

Yes. Cheapflights offers flight deals from South Dakota to Saint Thomas Island by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$509+ Flights from South Dakota to Saint Thomas Island

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Cheap flight deals from South Dakota to Saint Thomas Island

Round-trip from	$509 (American Airlines)
Popular in	June
Cheapest in	August
Average price	$649

From South Dakota to Saint Thomas Island Cyril E King

Search Deals

Highest demand for flights based on searches. 1% potential increase in price ($8 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Find flight deals from South Dakota to Saint Thomas Island

Cheapest flights from South Dakota to Saint Thomas Island
Explore the most affordable flight options available from South Dakota to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

Tue 12/95:36 pmFSD - STT

2 stops19h 59mAmerican Airlines

Tue 12/164:35 pmSTT - FSD

2 stops21h 02mAmerican Airlines

Deal found 7/31

$509

Mon 10/66:11 pmFSD - STT

3 stops38h 38mMultiple Airlines

Sat 10/1110:54 amSTT - FSD

3 stops24h 57mMultiple Airlines

Deal found 7/30

$521

Mon 12/85:25 amFSD - STT

1 stop6h 57mDelta

Thu 12/113:32 pmSTT - FSD

1 stop8h 39mDelta

Deal found 7/30

$579

Tue 12/98:00 amFSD - STT

3 stops26h 00mUnited Airlines

Tue 12/161:02 pmSTT - FSD

2 stops12h 41mUnited Airlines

Deal found 7/31

$749

Best flights from South Dakota to Saint Thomas Island
Discover carefully curated flight deals from South Dakota to Saint Thomas Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 31, 2025.

Tue 12/95:36 pmFSD - STT

2 stops19h 59mAmerican Airlines

Tue 12/164:35 pmSTT - FSD

2 stops21h 02mAmerican Airlines

Deal found 7/31

$509

Mon 10/66:11 pmFSD - STT

3 stops38h 38mMultiple Airlines

Sat 10/1110:54 amSTT - FSD

3 stops24h 57mMultiple Airlines

Deal found 7/30

$521

Mon 12/85:25 amFSD - STT

1 stop6h 57mDelta

Thu 12/113:32 pmSTT - FSD

1 stop8h 39mDelta

Deal found 7/30

$579

Tue 12/98:00 amFSD - STT

3 stops26h 00mUnited Airlines

Tue 12/161:02 pmSTT - FSD

2 stops12h 41mUnited Airlines

Deal found 7/31

$749

Last-minute flights from South Dakota to Saint Thomas Island
Discover last-minute flight deals from South Dakota to Saint Thomas Island. Data last updated July 31, 2025 and is based on user searches.

Wed 8/1312:47 pmFSD - STT

2 stops23h 03mAmerican Airlines

Sun 8/175:10 pmSTT - FSD

2 stops20h 48mAmerican Airlines

Deal found 7/29

$976

Fri 8/155:27 amFSD - STT

1 stop7h 43mDelta

Tue 8/193:23 pmSTT - FSD

1 stop8h 43mDelta

Deal found 7/31

$1,366

Cheapflights Fare Finder

Use the filters below to find and compare flights from South Dakota to Saint Thomas Island that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Sioux FallsSaint Thomas Island

FSD - STT

FSDSTT

Sioux Falls Joe Foss Field

Tue 12/9

5:36 pm-3:35 pm

2 stops19h 59m

Saint Thomas Island Cyril E King

Tue 12/16

4:35 pm-11:37 am

2 stops21h 02m

$509

Sioux FallsSaint Thomas Island

FSD - STT

FSDSTT

Sioux Falls Joe Foss Field

Mon 10/6

6:11 pm-9:49 am

3 stops38h 38m

Saint Thomas Island Cyril E King

Sat 10/11

10:54 am-10:51 am

3 stops24h 57m

$521

Sioux FallsSaint Thomas Island

FSD - STT

FSDSTT

Sioux Falls Joe Foss Field

Mon 12/8

5:25 am-2:22 pm

1 stop6h 57m

Saint Thomas Island Cyril E King

Thu 12/11

3:32 pm-10:11 pm

1 stop8h 39m

$579

Sioux FallsSaint Thomas Island

FSD - STT

FSDSTT

Sioux Falls Joe Foss Field

Tue 12/9

8:00 am-12:00 pm

3 stops26h 00m

Saint Thomas Island Cyril E King

Tue 12/16

1:02 pm-11:43 pm

2 stops12h 41m

$749

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Best time to book a flight from South Dakota to Saint Thomas Island

Have a flexible travel schedule? Discover the best time to fly to Saint Thomas Island from South Dakota with our price prediction graph.

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 South Dakota to Saint Thomas Island

What is the cheapest month to book a flight from South Dakota to Saint Thomas Island?

Currently, September is the cheapest month in which you can book a flight from South Dakota to Saint Thomas Island (average of $433). Flying from South Dakota to Saint Thomas Island in June is currently the most expensive (average of $649). 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.

Reviews of airlines servicing Saint Thomas Island

Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from South Dakota 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.

Delta

8.0

Very good

7,981 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,981 reviews

Delta

8.0

Very good

7,981 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,900 reviews

Delta

8.0

Very good

7,981 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,981 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What airport do you fly into for flights to Saint Thomas Island from South Dakota?
Saint Thomas Island Cyril E King (STT) is the airport you will fly into if you book a flight from South Dakota to Saint Thomas Island. It is only a 2.8 mi journey from Cyril E King (STT) to Saint Thomas Island’s city center.
Can I find deals for flights from South Dakota to Saint Thomas Island that include hotel bookings?
Yes. In addition to deals on South Dakota to Saint Thomas Island flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from South Dakota to Saint Thomas Island?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from South Dakota to Saint Thomas Island.
Can I find deals for business class flights from South Dakota to Saint Thomas Island?
Yes. Cheapflights offers flight deals from South Dakota to Saint Thomas Island by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from South Dakota to Saint Thomas Island?
Currently, September is the cheapest month in which you can book a flight from South Dakota to Saint Thomas Island (average of $433). Flying from South Dakota to Saint Thomas Island in June is currently the most expensive (average of $649). 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.

See more FAQs

St. John

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from South Dakota to Saint Thomas Island

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$509	Average$754	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$566	Average$759	FlexibilityNo cancel fee	On-time71%

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$509+ Cheap flights from South Dakota 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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from South Dakota to Saint Thomas Island with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from South Dakota to Saint Thomas Island

Keep the following information in mind while searching for South Dakota to Saint Thomas Island flight deals. Data was last updated July 31, 2025.

Round-trip from

Popular in

Cheapest in

Average price

Find flight deals from South Dakota to Saint Thomas Island

Cheapest flights from South Dakota to Saint Thomas IslandExplore the most affordable flight options available from South Dakota to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

Explore the most affordable flight options available from South Dakota to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from South Dakota to Saint Thomas Island that are best for you.

Best time to book a flight from South Dakota to Saint Thomas Island

Have a flexible travel schedule? Discover the best time to fly to Saint Thomas Island from South Dakota with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from South Dakota to Saint Thomas Island

What is the cheapest month to book a flight from South Dakota to Saint Thomas Island?

Reviews of airlines servicing Saint Thomas Island

Related info for your journey

Find useful and relevant information for your journey from South Dakota 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.

What airport do you fly into for flights to Saint Thomas Island from South Dakota?

Can I find deals for flights from South Dakota to Saint Thomas Island that include hotel bookings?

How can I find direct flights from South Dakota to Saint Thomas Island?

Can I find deals for business class flights from South Dakota to Saint Thomas Island?

What is the cheapest month to book a flight from South Dakota to Saint Thomas Island?

Traveling to a place near Saint Thomas Island?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for South Dakota to Saint Thomas Island

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from South Dakota to Saint Thomas Island

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Travel Smart

Cheapest flights from South Dakota to Saint Thomas Island
Explore the most affordable flight options available from South Dakota to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.