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Cheap flights from St. Louis to Saint Thomas Island from $208

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Saint Thomas Island departing on 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Saint Thomas Island

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
8:05 pm - 2:35 pm
STL
-
STT
17h 30m
2 stops
American Airlines Logo
4:18 pm - 8:27 am
STT
-
STL
18h 09m
2 stops
$284American Airlines
Sun, Oct 25 - Thu, Nov 5
American Airlines Logo
4:21 pm - 12:07 pm
STL
-
STT
17h 46m
1 stop
American Airlines Logo
4:18 pm - 8:27 am
STT
-
STL
18h 09m
2 stops
$345American Airlines
Mon, Nov 2 - Fri, Nov 6
American Airlines Logo
6:45 pm - 3:25 pm
STL
-
STT
18h 40m
2 stops
American Airlines Logo
6:17 pm - 8:50 am
STT
-
STL
16h 33m
2 stops
$352American Airlines
Tue, Dec 1 - Tue, Dec 8
American Airlines Logo
5:00 am - 3:52 pm
STL
-
STT
9h 52m
1 stop
American Airlines Logo
3:43 pm - 10:40 pm
STT
-
STL
7h 57m
1 stop
$377American Airlines
Fri, Aug 28 - Fri, Sep 4
American Airlines Logo
6:51 pm - 12:40 pm
STL
-
STT
16h 49m
2 stops
American Airlines Logo
12:57 pm - 10:32 pm
STT
-
STL
11h 35m
1 stop
$417American Airlines
Mon, Oct 26 - Sun, Nov 1
American Airlines Logo
6:45 pm - 3:25 pm
STL
-
STT
18h 40m
2 stops
American Airlines Logo
4:16 pm - 11:59 pm
STT
-
STL
9h 43m
1 stop
$420American Airlines
Tue, Dec 1 - Tue, Dec 8
American Airlines Logo
5:13 pm - 12:51 pm
STL
-
STT
18h 38m
2 stops
American Airlines Logo
1:41 pm - 10:29 am
STT
-
STL
21h 48m
2 stops
$422American Airlines
Wed, Sep 9 - Tue, Sep 15
American Airlines Logo
5:00 am - 12:51 pm
STL
-
STT
6h 51m
1 stop
American Airlines Logo
1:41 pm - 10:29 am
STT
-
STL
21h 48m
2 stops
$425American Airlines
Wed, Sep 9 - Tue, Sep 15
American Airlines Logo
5:42 pm - 12:53 pm
STL
-
STT
18h 11m
2 stops
American Airlines Logo
3:43 pm - 12:14 am
STT
-
STL
9h 31m
2 stops
$445American Airlines
Fri, Aug 28 - Fri, Sep 4
Delta Logo
6:00 am - 1:42 pm
STL
-
STT
6h 42m
1 stop
Delta Logo
2:52 pm - 11:42 pm
STT
-
STL
9h 50m
1 stop
$465Delta
Wed, Sep 9 - Tue, Sep 15

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Southwest flights from St. Louis to Saint Thomas Island

Our best Southwest deals on St. Louis to Saint Thomas Island flight tickets
Southwest
Aug 22
STL4:20 pmLambert-St Louis
20h 05m
2 stops
STT1:25 pmSaint Thomas Island Cyril E King
Aug 29
STT2:05 pmSaint Thomas Island Cyril E King
7h 40m
1 stop
STL8:45 pmLambert-St Louis
$485
Southwest
Sep 17
STL5:10 amLambert-St Louis
7h 40m
1 stop
STT1:50 pmSaint Thomas Island Cyril E King
Sep 21
STT2:35 pmSaint Thomas Island Cyril E King
6h 25m
1 stop
STL8:00 pmLambert-St Louis
$527
Southwest
Aug 6
STL5:10 amLambert-St Louis
7h 40m
1 stop
STT1:50 pmSaint Thomas Island Cyril E King
Aug 20
STT2:35 pmSaint Thomas Island Cyril E King
6h 25m
1 stop
STL8:00 pmLambert-St Louis
$655

United Airlines flights from St. Louis to Saint Thomas Island

Our best United Airlines deals on St. Louis to Saint Thomas Island flight tickets
United Airlines
Oct 26
STL7:30 amLambert-St Louis
26h 35m
1 stop
STT11:05 amSaint Thomas Island Cyril E King
Nov 1
STT3:35 pmSaint Thomas Island Cyril E King
8h 45m
1 stop
STL10:20 pmLambert-St Louis
$537
United Airlines
Oct 26
STL7:30 amLambert-St Louis
26h 35m
1 stop
STT11:05 amSaint Thomas Island Cyril E King
Nov 1
STT3:35 pmSaint Thomas Island Cyril E King
8h 45m
1 stop
STL10:20 pmLambert-St Louis
$547
United Airlines
Jul 14
STL6:14 amLambert-St Louis
8h 29m
1 stop
STT3:43 pmSaint Thomas Island Cyril E King
Jul 23
STT1:22 pmSaint Thomas Island Cyril E King
23h 49m
2 stops
STL12:11 pmLambert-St Louis
$660

momondo 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, momondo users made 832,500 searches. Data last updated June 28, 2026.
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

Cheapest round-trip

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Sun 10/25

8:05 pm-2:35 pm

2 stops17h 30m

Saint Thomas Island Cyril E King

Thu 11/5

4:18 pm-8:27 am

2 stops18h 09m

$284

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Mon 11/2

4:21 pm-12:07 pm

1 stop17h 46m

Saint Thomas Island Cyril E King

Fri 11/6

4:18 pm-8:27 am

2 stops18h 09m

$345

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Tue 12/1

6:45 pm-3:25 pm

2 stops18h 40m

Saint Thomas Island Cyril E King

Tue 12/8

6:17 pm-8:50 am

2 stops16h 33m

$352

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Fri 8/28

5:00 am-3:52 pm

1 stop9h 52m

Saint Thomas Island Cyril E King

Fri 9/4

3:43 pm-10:40 pm

1 stop7h 57m

$377

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Mon 10/26

6:51 pm-12:40 pm

2 stops16h 49m

Saint Thomas Island Cyril E King

Sun 11/1

12:57 pm-10:32 pm

1 stop11h 35m

$417

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Tue 12/1

6:45 pm-3:25 pm

2 stops18h 40m

Saint Thomas Island Cyril E King

Tue 12/8

4:16 pm-11:59 pm

1 stop9h 43m

$420

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Wed 9/9

5:13 pm-12:51 pm

2 stops18h 38m

Saint Thomas Island Cyril E King

Tue 9/15

1:41 pm-10:29 am

2 stops21h 48m

$422

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Wed 9/9

5:00 am-12:51 pm

1 stop6h 51m

Saint Thomas Island Cyril E King

Tue 9/15

1:41 pm-10:29 am

2 stops21h 48m

$425

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Fri 8/28

5:42 pm-12:53 pm

2 stops18h 11m

Saint Thomas Island Cyril E King

Fri 9/4

3:43 pm-12:14 am

2 stops9h 31m

$445
Quickest round-trip

St. LouisSaint Thomas Island

STL - STT

STLSTT

Lambert-St Louis

Wed 9/9

6:00 am-1:42 pm

1 stop6h 42m

Saint Thomas Island Cyril E King

Tue 9/15

2:52 pm-11:42 pm

1 stop9h 50m

$465

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Saint Thomas Island from

How to get the cheapest flight ticket from St. Louis to Saint Thomas Island

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between St. Louis and Saint Thomas Island?

What is the cheapest month to fly to Saint Thomas Island?

The month of August is another great option to travel to Saint Thomas Island, with average flight prices from St. Louis averaging around $549.

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

You are more likely to see cheaper flights to Saint Thomas Island from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Saint Thomas Island for around $684 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Saint Thomas Island from St. Louis for as low as $540 on momondo.

Can stopping save me money on St. Louis to Saint Thomas Island flights?

You could potentially save up to 46% on your flight if you consider stops on a St. Louis to Saint Thomas Island flight.

How have St. Louis to Saint Thomas Island flight prices changed over time?

As of June 2026, prices for St. Louis to Saint Thomas Island flights are approximately 93% more expensive when compared to flights at the same time last year.

When to book flights from St. Louis to Saint Thomas Island

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Saint Thomas Island according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap St. Louis to Saint Thomas Island (STL to STT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Saint Thomas Island

Fastest flight time

6h 34m

Direct flights

None
The fastest flight from St. Louis to Saint Thomas Island takes 6h 34m
There are no direct flights from St. Louis to Saint Thomas Island. There are no popular flight routes from St. Louis to Saint Thomas Island.
Search flight deals

Frequently asked questions about flying from St. Louis to Saint Thomas Island

  • How far is Lambert-St Louis to Saint Thomas Island Cyril E King by plane?

    There are 2063.4 mi between Lambert-St Louis and Saint Thomas Island Cyril E King. By plane, this route typically takes 6h 34m.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Saint Thomas Island Cyril E King Airport?

    Prices for flights from Lambert-St Louis Airport to Saint Thomas Island Cyril E King Airport are updated daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Saint Thomas Island Cyril E King Airport?

  • How old do you have to be to fly from Lambert-St Louis Airport to Saint Thomas Island Cyril E King Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Lambert-St Louis Airport to Saint Thomas Island Cyril E King Airport.

  • What documentation or ID do you need to fly to Saint Thomas Island Cyril E King Airport?

    The travel and health documents you'll need for your trip to Saint Thomas Island Cyril E King Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Saint Thomas Island Cyril E King Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from St. Louis to Saint Thomas Island?

Best airlines flying from St. Louis to Saint Thomas Island

Compare and see reviews for airlines that fly from St. Louis to Saint Thomas Island with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $352Free CancellationRating
7.4
9,899 reviews
Search United Airlines flights
DeltaPriceFrom $389Free CancellationRating
7.8
8,455 reviews
Search Delta flights
American AirlinesPriceFrom $485Free CancellationRating
7.1
11,776 reviews
Search American Airlines flights
SouthwestPriceFrom $554Free CancellationRating
7.9
4,246 reviews
Search Southwest flights

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

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Saint Thomas Island?

Finding the right flight to Saint Thomas Island from St. Louis is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Saint Thomas Island quick and easy, saving you time and money.

Can I find flights from St. Louis to Saint Thomas Island with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Saint Thomas Island from St. Louis with this policy.

How can momondo help me find flights from St. Louis to Saint Thomas Island?

Once you have performed a search for St. Louis to Saint Thomas Island flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from St. Louis to Saint Thomas Island right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Saint Thomas Island from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Saint Thomas Island trip

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