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Saint Thomas Island

$232+ Cheap flights from St. Louis (STL) to Saint Thomas Island (STT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
STL — STT
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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Find cheap flights from St. Louis to Saint Thomas Island with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Lambert-St Louis to Saint Thomas Island Cyril E King are usually found in September or August, booked 28 days in advance, depart on a Wednesday or Sunday and return on a Tuesday

Find flight deals from St. Louis to Saint Thomas Island

Cheapest flights from St. Louis to Saint Thomas Island
Explore the most affordable flight options available from St. Louis to Saint Thomas Island. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/25. 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 11/166:21 pmSTL - STT
1 stop16h 39mSpirit Airlines
Sat 11/222:00 pmSTT - STL
1 stop22h 03mSpirit Airlines
Deal found 10/25$307
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Thu 11/2010:53 amSTL - STT
1 stop24h 02mMultiple Airlines
Mon 11/243:25 pmSTT - STL
1 stop10h 32mMultiple Airlines
Deal found 10/26$400
This American Airlines deal was found by Cheapflights users on 10/26. 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 11/185:17 amSTL - STT
2 stops9h 40mAmerican Airlines
Sun 11/236:17 pmSTT - STL
2 stops18h 22mAmerican Airlines
Deal found 10/26$467
This American Airlines deal was found by Cheapflights users on 10/25. 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 11/165:15 amSTL - STT
1 stop9h 42mAmerican Airlines
Sat 11/2212:28 pmSTT - STL
1 stop7h 26mAmerican Airlines
Deal found 10/25$469
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 12/214:27 pmSTL - STT
1 stop20h 01mMultiple Airlines
Fri 12/263:23 pmSTT - STL
1 stop9h 10mMultiple Airlines
Deal found 10/25$492
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Fri 12/196:58 pmSTL - STT
1 stop17h 30mMultiple Airlines
Sun 12/213:23 pmSTT - STL
1 stop20h 22mMultiple Airlines
Deal found 10/26$510
This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Fri 11/284:13 pmSTL - STT
1 stop20h 17mMultiple Airlines
Mon 12/13:25 pmSTT - STL
1 stop10h 32mMultiple Airlines
Deal found 10/26$518
This American Airlines deal was found by Cheapflights users on 10/26. 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 11/145:56 pmSTL - STT
1 stop15h 47mAmerican Airlines
Mon 11/246:17 pmSTT - STL
2 stops18h 22mAmerican Airlines
Deal found 10/26$547

Cheap flight deals from St. Louis to Saint Thomas Island

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) 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 October 27, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$266
(Kiwi.com)

One-way from

$232
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$609
Provider with most accurate pricing for Lambert-St Louis-Saint Thomas Island Cyril E King flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Saint Thomas Island Cyril E King flights.
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From Lambert-St Louis to Saint Thomas Island Cyril E King
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One-way flight from Lambert-St Louis to Saint Thomas Island Cyril E King
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from St. Louis 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 October 27, 2025.
Use the filters below to find and compare flights from St. Louis to Saint Thomas Island that are best for you.

Fly from

St. Louis

Fly to

Saint Thomas Island

Route

Depart

Return

Price

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Sat 1/24

5:11 pm-12:28 pm

2 stops17h 17m

Saint Thomas Island Cyril E King

Thu 1/29

4:06 pm-7:50 am

1 stop17h 44m

$304

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Sat 1/24

5:11 pm-3:11 pm

1 stop20h 00m

Saint Thomas Island Cyril E King

Fri 1/30

1:33 pm-1:53 pm

1 stop26h 20m

$304

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Sat 1/24

5:11 pm-3:11 pm

1 stop20h 00m

Saint Thomas Island Cyril E King

Mon 2/2

4:06 pm-10:02 am

2 stops43h 56m

$338

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Sat 1/24

5:11 pm-3:11 pm

1 stop20h 00m

Saint Thomas Island Cyril E King

Sun 2/1

4:06 pm-10:02 am

2 stops19h 56m

$366

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Sat 1/24

5:11 pm-12:28 pm

2 stops17h 17m

Saint Thomas Island Cyril E King

Sat 1/31

1:33 pm-11:01 am

1 stop23h 28m

$373

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Thu 11/20

10:53 am-12:55 pm

1 stop24h 02m

Saint Thomas Island Cyril E King

Mon 11/24

3:25 pm-11:57 pm

1 stop10h 32m

$400

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Sat 1/10

5:11 pm-3:11 pm

1 stop20h 00m

Saint Thomas Island Cyril E King

Fri 1/16

4:06 pm-10:37 pm

1 stop8h 31m

$413

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Wed 1/21

5:12 pm-2:02 pm

2 stops18h 50m

Saint Thomas Island Cyril E King

Thu 1/29

6:39 pm-9:40 am

2 stops17h 01m

$467

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Wed 1/21

7:30 am-3:54 pm

1 stop6h 24m

Saint Thomas Island Cyril E King

Thu 1/29

4:00 pm-11:40 pm

1 stop9h 40m

$467

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Thu 1/8

6:00 am-3:30 pm

1 stop7h 30m

Saint Thomas Island Cyril E King

Mon 1/12

6:39 pm-11:03 am

2 stops18h 24m

$467

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

Showing 1-10 of 13 results
1
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Compare providers for flights from St. Louis 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 St. Louis to Saint Thomas Island in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
MytripPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Saint Thomas Island flights, users find the pricing of Mytrip to be most consistent on Cheapflights vs. Mytrip Users can find the same prices on St. Louis-Saint Thomas Island flight deals on Cheapflights vs. Mytrip >95% of the time. Price accuracy is based on data collected from St. Louis-Saint Thomas Island flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Saint Thomas Island flights, Cheapflights users trust Mytrip the most. Mytrip 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 St. Louis-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 St. Louis to Saint Thomas Island

Have a flexible travel schedule? Discover the best time to fly to Saint Thomas Island from St. Louis 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 St. Louis to Saint Thomas Island

How far ahead should I book a flight from St. Louis to Saint Thomas Island?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Saint Thomas Island. Price data was last updated on October 24, 2025.

The price you pay for your flight from St. Louis to Saint Thomas Island may vary depending on when you book. For the best chance of a lower fare, look to book 28 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from St. Louis to Saint Thomas Island?

Currently, April is the cheapest month in which you can book a flight from St. Louis to Saint Thomas Island (average of $147). Flying from St. Louis to Saint Thomas Island in July is currently the most expensive (average of $477). 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.

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

Find hourly flight availability from St. Louis to Saint Thomas Island. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 27, 2025.

When flying from St. Louis to Saint Thomas Island, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 47% versus a flight in the morning.

How much does it cost to fly round-trip from St. Louis to Saint Thomas Island?

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 October 27, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from St. Louis 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
7.9
Good
7,996 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,996 reviews
Delta
7.9
Good
7,996 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,997 reviews
Delta
7.9
Good
7,996 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,033 reviews
Delta
7.9
Good
7,996 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Spirit Airlines
6.3
Okay
8,110 reviews
Delta
7.9
Good
7,996 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from St. Louis 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 are the cheapest airlines flying from St. Louis to Saint Thomas Island round-trip?

    Spirit Airlines, at $147, was found to be the cheapest airline from St. Louis to Saint Thomas Island.Alternate airlines to your destination round-trip include United Airlines and American Airlines. Spirit Airlines is 78% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from St. Louis to Saint Thomas Island that include hotel bookings?

    Yes. In addition to deals on St. Louis to Saint Thomas Island flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis 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 St. Louis to Saint Thomas Island.

  • Can I find deals for business class flights from St. Louis to Saint Thomas Island?

    Yes. Cheapflights offers flight deals from St. Louis 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 St. Louis to Saint Thomas Island?

    Currently, April is the cheapest month in which you can book a flight from St. Louis to Saint Thomas Island (average of $147). Flying from St. Louis to Saint Thomas Island in July is currently the most expensive (average of $477). 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

Traveling to a place near Saint Thomas Island?

Book flights to Saint Thomas Island if you plan to visit one of these locations
St. John

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Alternative routes for St. Louis to Saint Thomas Island

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from St. Louis to Saint Thomas Island

Discover the top 4 airlines that operate flights from St. Louis 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 October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$147Average$276FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$454Average$605FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$504Average$746FlexibilityNo cancel feeOn-time71%
DeltaCheapest$509Average$654FlexibilityNo cancel feeOn-timeN/A

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