How long is the flight from St. Louis to Saint Thomas Island?

Departing from St. Louis to Saint Thomas Island will take you 16h 44m. St. Louis and Saint Thomas Island are separated by a distance of 2074 mi.

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 77% cheaper than the average price of flights available within the next 90 days to this destination.

What is the cheapest day to fly from St. Louis to Saint Thomas Island?

Travelers seeking maximum savings on their St. Louis to Saint Thomas Island flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from St. Louis to Saint Thomas Island?

The most popular airlines flying from St. Louis to Saint Thomas Island are American Airlines, Delta and Spirit Airlines. Something to consider prior to booking your flight.

What is the cheapest day to fly round-trip from St. Louis to Saint Thomas Island?

Flying to your destination on a Friday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Saint Thomas Island. Check prices with Cheapflights to find a great deal for your trip.

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

Find a great deal and save up to 202% by booking at least 45 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from St. Louis to Saint Thomas Island within the next two weeks, with the cheapest ticket starting at $351.

What is the cheapest month to fly from St. Louis to Saint Thomas Island?

Our data shows that September tends to be the cheapest month to fly to Saint Thomas Island from St. Louis. Users have commonly found prices around $664 for the month, but tickets can be as low as $260. Due to multiple factors, prepare for potentially higher prices in December.

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.

$156+ Cheap Flights from St. Louis to Saint Thomas Island

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

Airfare is below average for this route at the moment. St. Louis to Saint Thomas Island flights typically cost between $487 and $577 in October. The cheapest round-trip price found within the last 3 days was $251 on Spirit Airlines (Oct 18-Oct 25).

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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 44 days in advance, depart on a Wednesday or Sunday and return on a Tuesday

Cheap flight deals from St. Louis to Saint Thomas Island

Round-trip from	$251 (CheapOair)
One-way from	$156 (Kiwi.com)
Popular in	December
Cheapest in	September
Average price	$517

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

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Highest demand for flights based on searches. 0% potential increase in price ($3 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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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 septiembre 11, 2025.

sáb. 10/187:15 pmSTL - STT

1 stop13h 41mSpirit Airlines

sáb. 10/2511:01 amSTT - STL

1 stop8h 09mSpirit Airlines

Deal found 9/10

$251

sáb. 10/187:15 pmSTL - STT

1 stop13h 41mSpirit Airlines

mié. 10/2211:01 amSTT - STL

1 stop24h 01mSpirit Airlines

Deal found 9/10

$301

dom. 11/210:57 amSTL - STT

1 stop21h 54mMultiple Airlines

sáb. 11/84:06 pmSTT - STL

2 stops21h 03mMultiple Airlines

Deal found 9/10

$318

sáb. 10/187:15 pmSTL - STT

1 stop13h 41mMultiple Airlines

mié. 10/2211:01 amSTT - STL

2 stops23h 21mMultiple Airlines

Deal found 9/10

$336

dom. 11/912:20 pmSTL - STT

1 stop22h 08mMultiple Airlines

jue. 11/131:33 pmSTT - STL

2 stops28h 28mMultiple Airlines

Deal found 9/9

$349

sáb. 10/187:15 pmSTL - STT

1 stop13h 41mMultiple Airlines

sáb. 10/2511:01 amSTT - STL

3 stops25h 59mMultiple Airlines

Deal found 9/10

$357

Best flights from St. Louis to Saint Thomas Island
Discover carefully curated flight deals from St. Louis to Saint Thomas Island that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated septiembre 11, 2025.

sáb. 10/187:15 pmSTL - STT

2 stops16h 44mSpirit Airlines

sáb. 10/2511:01 amSTT - STL

1 stop8h 09mSpirit Airlines

Deal found 9/9

$360

jue. 11/1312:20 pmSTL - STT

1 stop22h 08mMultiple Airlines

dom. 11/164:06 pmSTT - STL

1 stop19h 34mMultiple Airlines

Deal found 9/9

$360

mié. 11/125:15 amSTL - STT

1 stop8h 10mAmerican Airlines

lun. 11/176:17 pmSTT - STL

2 stops17h 18mAmerican Airlines

Deal found 9/11

$509

mié. 2/187:30 amSTL - STT

1 stop6h 24mDelta

mié. 2/252:00 pmSTT - STL

1 stop11h 40mDelta

Deal found 9/9

$509

lun. 10/206:05 pmSTL - STT

2 stops38h 51mMultiple Airlines

dom. 10/262:40 pmSTT - STL

1 stop27h 30mMultiple Airlines

Deal found 9/10

$451

vie. 11/145:15 amSTL - STT

1 stop9h 42mAmerican Airlines

lun. 11/246:17 pmSTT - STL

2 stops18h 22mAmerican Airlines

Deal found 9/9

$509

mié. 1/217:30 amSTL - STT

1 stop6h 24mDelta

jue. 1/293:00 pmSTT - STL

1 stop10h 40mDelta

Deal found 9/11

$509

dom. 2/2212:20 pmSTL - STT

2 stops24h 51mMultiple Airlines

jue. 2/264:06 pmSTT - STL

1 stop8h 27mMultiple Airlines

Deal found 9/10

$470

Last-minute flights from St. Louis to Saint Thomas Island
Discover last-minute flight deals from St. Louis to Saint Thomas Island. Data last updated septiembre 11, 2025 and is based on user searches.

sáb. 10/187:15 pmSTL - STT

1 stop13h 41mSpirit Airlines

sáb. 10/2511:01 amSTT - STL

1 stop8h 09mSpirit Airlines

Deal found 9/10

$251

sáb. 10/187:15 pmSTL - STT

1 stop13h 41mSpirit Airlines

mié. 10/2211:01 amSTT - STL

1 stop24h 01mSpirit Airlines

Deal found 9/10

$301

sáb. 10/187:15 pmSTL - STT

1 stop13h 41mMultiple Airlines

mié. 10/2211:01 amSTT - STL

2 stops23h 21mMultiple Airlines

Deal found 9/10

$336

sáb. 10/187:15 pmSTL - STT

1 stop13h 41mMultiple Airlines

sáb. 10/2511:01 amSTT - STL

3 stops25h 59mMultiple Airlines

Deal found 9/10

$357

One-way flights from St. Louis to Saint Thomas Island
Search for one-way flight options from St. Louis to Saint Thomas Island. Find affordable one-way fares based on user searches. Data last updated septiembre 11, 2025.

sáb. 12/62:48 pmSTL - STT

1 stop19h 40mSpirit Airlines

Deal found 9/9

$156

sáb. 12/69:50 amSTL - STT

3 stops27h 21mMultiple Airlines

Deal found 9/9

$240

mié. 2/46:30 amSTL - STT

1 stop7h 48mUnited Airlines

Deal found 9/10

$293

vie. 1/167:15 amSTL - STT

1 stop8h 10mAmerican Airlines

Deal found 9/9

$328

jue. 1/1512:20 pmSTL - STT

1 stop22h 08mSpirit Airlines

Deal found 9/9

$329

mié. 2/47:43 pmSTL - STT

3 stops41h 28mMultiple Airlines

Deal found 9/10

$334

vie. 1/169:50 amSTL - STT

3 stops24h 38mMultiple Airlines

Deal found 9/9

$417

jue. 1/1510:42 amSTL - STT

3 stops23h 46mMultiple Airlines

Deal found 9/9

$420

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

sáb. 10/18

7:15 pm-12:59 pm

2 stops16h 44m

Saint Thomas Island Cyril E King

sáb. 10/25

11:01 am-6:10 pm

1 stop8h 09m

$360

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

jue. 11/13

12:20 pm-12:28 pm

1 stop22h 08m

Saint Thomas Island Cyril E King

dom. 11/16

4:06 pm-9:40 am

1 stop19h 34m

$360

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

lun. 10/20

6:05 pm-9:56 am

2 stops38h 51m

Saint Thomas Island Cyril E King

dom. 10/26

2:40 pm-5:10 pm

1 stop27h 30m

$451

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

dom. 2/22

12:20 pm-3:11 pm

2 stops24h 51m

Saint Thomas Island Cyril E King

jue. 2/26

4:06 pm-10:33 pm

1 stop8h 27m

$470

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

mié. 11/12

5:15 am-3:25 pm

1 stop8h 10m

Saint Thomas Island Cyril E King

lun. 11/17

6:17 pm-9:35 am

2 stops17h 18m

$509

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

mié. 2/18

7:30 am-3:54 pm

1 stop6h 24m

Saint Thomas Island Cyril E King

mié. 2/25

2:00 pm-11:40 pm

1 stop11h 40m

$509

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

vie. 11/14

5:15 am-4:57 pm

1 stop9h 42m

Saint Thomas Island Cyril E King

lun. 11/24

6:17 pm-10:39 am

2 stops18h 22m

$509

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

mié. 1/21

7:30 am-3:54 pm

1 stop6h 24m

Saint Thomas Island Cyril E King

jue. 1/29

3:00 pm-11:40 pm

1 stop10h 40m

$509

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

sáb. 12/6

2:48 pm-12:28 pm

1 stop19h 40m

$156

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

sáb. 12/6

9:50 am-3:11 pm

3 stops27h 21m

$240

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 18 results

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?

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 44 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, September is the cheapest month in which you can book a flight from St. Louis to Saint Thomas Island (average of $433). Flying from St. Louis to Saint Thomas Island in June is currently the most expensive (average of $645). 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?

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 48% 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

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

8.0

Very good

7,960 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

7,960 reviews

Delta

8.0

Very good

7,960 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

8,937 reviews

Delta

8.0

Very good

7,960 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

7,960 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!

Spirit Airlines

6.3

Okay

8,023 reviews

Delta

8.0

Very good

7,960 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

How long is the flight from St. Louis to Saint Thomas Island?
Departing from St. Louis to Saint Thomas Island will take you 16h 44m. St. Louis and Saint Thomas Island are separated by a distance of 2074 mi.
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 77% 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, September is the cheapest month in which you can book a flight from St. Louis to Saint Thomas Island (average of $433). Flying from St. Louis to Saint Thomas Island in June is currently the most expensive (average of $645). 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 4 airlines flying from St. Louis to Saint Thomas Island

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$147	Average$305	FlexibilityNo cancel fee	On-time65%
United Airlines	Cheapest$454	Average$608	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$497	Average$732	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$509	Average$654	FlexibilityNo cancel fee	On-timeN/A

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$156+ 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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from St. Louis to Saint Thomas Island with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Lambert-St Louis to Saint Thomas Island Cyril E King are usually found in September or August, booked 44 days in advance, depart on a Wednesday or Sunday and return on a Tuesday

Cheap flight deals from St. Louis to Saint Thomas Island

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to Saint Thomas Island

Cheapest flights from St. Louis to Saint Thomas IslandExplore 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 septiembre 11, 2025.

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 septiembre 11, 2025.

Cheapflights Fare Finder

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

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.

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?

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

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

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

Reviews of airlines servicing Saint Thomas Island

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.

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.

How long is the flight from St. Louis to Saint Thomas Island?

What are the cheapest airlines flying from St. Louis to Saint Thomas Island round-trip?

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

How can I 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?

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

Traveling to a place near Saint Thomas Island?

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Alternative routes for St. Louis to Saint Thomas Island

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Top 4 airlines flying from St. Louis to Saint Thomas Island

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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 septiembre 11, 2025.