$354+ Cheap flights from Saint Thomas Island (STT) to St. Louis (STL)
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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
STT — STL
Oct 8 — Oct 151
Round-trip
1 adult, Economy
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Find cheap flights from Saint Thomas Island to St. Louis 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Saint Thomas Island to St. Louis
Cheapest
Best
Last-minute
One-way
Cheapest flights from Saint Thomas Island to St. LouisExplore the most affordable flight options available from Saint Thomas Island to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
Explore the most affordable flight options available from Saint Thomas Island to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/42:45 pm -
1 stop7h 15m
Sat 10/105:20 am -
1 stop7h 45m
Deal found 9/5![Southwest logo]()
$540
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.
Sun 10/41:41 pm -
2 stops22h 00m
Sun 10/115:40 pm -
2 stops18h 01m
Deal found 9/6![American Airlines logo]()
$542
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/42:45 pm -
1 stop10h 10m
Sun 10/116:45 am -
1 stop6h 15m
Deal found 9/6![Southwest logo]()
$660
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.
Sun 9/64:42 pm -
2 stops19h 10m
Sun 10/115:40 pm -
2 stops18h 01m
Deal found 9/6![American Airlines logo]()
$671
This United 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/48:39 am -
3 stops28h 34m
Sat 10/106:00 am -
2 stops24h 50m
Deal found 9/5![Multiple Airlines logo]()
$1,200
Best flights from Saint Thomas Island to St. LouisDiscover carefully curated flight deals from Saint Thomas Island to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
Discover carefully curated flight deals from Saint Thomas Island to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
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.
Sun 10/41:41 pm -
2 stops22h 00m
Sun 10/115:40 pm -
2 stops18h 01m
Deal found 9/6![American Airlines logo]()
$542
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/42:45 pm -
2 stops10h 10m
Sat 10/106:35 am -
1 stop6h 30m
Deal found 9/5![Southwest logo]()
$571
This United 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/48:39 am -
3 stops28h 34m
Sat 10/106:00 am -
2 stops24h 50m
Deal found 9/5![Multiple Airlines logo]()
$1,200
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/42:45 pm -
1 stop10h 10m
Sun 10/116:45 am -
1 stop6h 15m
Deal found 9/6![Southwest logo]()
$660
Last-minute flights from Saint Thomas Island to St. LouisDiscover last-minute flight deals from Saint Thomas Island to St. Louis. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute flight deals from Saint Thomas Island to St. Louis. Data last updated September 8, 2026 and is based on user searches.
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.
Sun 9/64:42 pm -
2 stops19h 10m
Sun 10/115:40 pm -
2 stops18h 01m
Deal found 9/6![American Airlines logo]()
$671
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/42:45 pm -
1 stop7h 15m
Sat 10/105:20 am -
1 stop7h 45m
Deal found 9/5![Southwest logo]()
$540
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.
Sun 10/41:41 pm -
2 stops22h 00m
Sun 10/115:40 pm -
2 stops18h 01m
Deal found 9/6![American Airlines logo]()
$542
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/42:45 pm -
1 stop10h 10m
Sun 10/116:45 am -
1 stop6h 15m
Deal found 9/6![Southwest logo]()
$660
This United 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/48:39 am -
3 stops28h 34m
Sat 10/106:00 am -
2 stops24h 50m
Deal found 9/5![Multiple Airlines logo]()
$1,200
One-way flights from Saint Thomas Island to St. LouisSearch for one-way flight options from Saint Thomas Island to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
Search for one-way flight options from Saint Thomas Island to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 8, 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.
Tue 12/84:53 pm -
2 stops18h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![American Airlines logo]()
$354
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/83:15 pm -
1 stop9h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Southwest logo]()
$358
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.
Tue 12/85:45 pm -
3 stops27h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$432
This 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/253:00 pm -
1 stop8h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![United Airlines logo]()
$551
Find flight deals from Saint Thomas Island to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Saint Thomas Island (STT) to St. Louis (STL). 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 September 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $540 (Southwest) |
One-way from | $354 (American Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Saint Thomas Island to St. Louis 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 8, 2026.
Use the filters below to find and compare flights from Saint Thomas Island to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Saint Thomas IslandSt. Louis
STT Saint Thomas Island Cyril E King - STL Lambert-St Louis
STTSTL
Saint Thomas Island Cyril E King
Tue 12/8
4:53 pm-9:44 am
2 stops18h 51m
Lambert-St Louis
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$354
Saint Thomas IslandSt. Louis
STT Saint Thomas Island Cyril E King - STL Lambert-St Louis
STTSTL
Saint Thomas Island Cyril E King
Tue 12/8
3:15 pm-10:25 pm
1 stop9h 10m
Lambert-St Louis
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$358
Saint Thomas IslandSt. Louis
STT Saint Thomas Island Cyril E King - STL Lambert-St Louis
STTSTL
Saint Thomas Island Cyril E King
Tue 12/8
5:45 pm-6:54 pm
3 stops27h 09m
Lambert-St Louis
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$432
Saint Thomas IslandSt. Louis
STT Saint Thomas Island Cyril E King - STL Lambert-St Louis
STTSTL
Saint Thomas Island Cyril E King
Sun 10/4
1:41 pm-10:41 am
2 stops22h 00m
Lambert-St Louis
Sun 10/11
5:40 pm-12:41 pm
2 stops18h 01m
$542
Quickest round-trip
Saint Thomas IslandSt. Louis
STT Saint Thomas Island Cyril E King - STL Lambert-St Louis
STTSTL
Saint Thomas Island Cyril E King
Wed 11/25
3:00 pm-9:52 pm
1 stop8h 52m
Lambert-St Louis
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$551
Saint Thomas IslandSt. Louis
STT Saint Thomas Island Cyril E King - STL Lambert-St Louis
STTSTL
Saint Thomas Island Cyril E King
Sun 10/4
2:45 pm-11:55 pm
2 stops10h 10m
Lambert-St Louis
Sat 10/10
6:35 am-2:05 pm
1 stop6h 30m
$571
Saint Thomas IslandSt. Louis
STT Saint Thomas Island Cyril E King - STL Lambert-St Louis
STTSTL
Saint Thomas Island Cyril E King
Sun 10/4
2:45 pm-11:55 pm
1 stop10h 10m
Lambert-St Louis
Sun 10/11
6:45 am-2:00 pm
1 stop6h 15m
$660
Saint Thomas IslandSt. Louis
STT Saint Thomas Island Cyril E King - STL Lambert-St Louis
STTSTL
Saint Thomas Island Cyril E King
Sun 10/4
8:39 am-12:13 pm
3 stops28h 34m
Lambert-St Louis
Sat 10/10
6:00 am-7:50 am
2 stops24h 50m
$1,200
Sorted by cheapest first
Compare providers for flights from Saint Thomas Island to St. Louis
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 Saint Thomas Island to St. Louis in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Saint Thomas Island-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Saint Thomas Island-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Saint Thomas Island-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Saint Thomas Island-St. Louis 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 Saint Thomas Island-St. Louis 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 Saint Thomas Island to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Saint Thomas Island with our price prediction graph.
STT-STL
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.
Related info for your journey
Find useful and relevant information for your journey from Saint Thomas Island to St. Louis. 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 St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsEdwardsville
Fairview Heights
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Fenton
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Eureka
Maryland Heights
Collinsville
Wentzville
Glencoe
Chesterfield
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