Cheap flights from San Antonio to Caribbean from $168

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to Caribbean departing on 8/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
8:26 pm - 2:35 pm
SAT
-
STT
17h 09m
2 stops
American Airlines Logo
5:40 pm - 10:13 am
STT
-
SAT
17h 33m
2 stops
$260American Airlines
Sun, Oct 18 - Fri, Oct 23
Delta Logo
10:45 am - 10:00 pm
SAT
-
SJU
10h 15m
1 stop
Delta Logo
7:30 am - 3:16 pm
SJU
-
SAT
8h 46m
1 stop
$336Delta
Tue, Sep 22 - Tue, Sep 29
American Airlines Logo
5:00 am - 6:10 pm
SAT
-
SJU
12h 10m
2 stops
American Airlines Logo
2:05 pm - 11:23 pm
SJU
-
SAT
10h 18m
1 stop
$346American Airlines
Tue, Sep 22 - Tue, Sep 29
American Airlines Logo
5:15 am - 3:52 pm
SAT
-
STT
9h 37m
1 stop
American Airlines Logo
4:42 pm - 11:59 pm
STT
-
SAT
8h 17m
1 stop
$347American Airlines
Fri, Aug 14 - Sat, Aug 22
United Airlines Logo
11:34 am - 8:38 pm
SAT
-
SJU
8h 04m
1 stop
United Airlines Logo
7:00 am - 3:43 pm
SJU
-
SAT
9h 43m
1 stop
$359United Airlines
Mon, Aug 17 - Mon, Aug 24
Southwest Logo
12:55 pm - 10:00 pm
SAT
-
SJU
8h 05m
2 stops
Southwest Logo
5:30 am - 6:10 pm
SJU
-
SAT
13h 40m
1 stop
$364Southwest
Wed, Aug 12 - Thu, Aug 13
United Airlines Logo
7:35 am - 3:42 pm
SAT
-
SJU
7h 07m
1 stop
United Airlines Logo
1:00 am - 3:48 pm
SJU
-
SAT
15h 48m
2 stops
$366United Airlines
Mon, Sep 21 - Wed, Sep 23
Southwest Logo
11:50 am - 10:50 pm
SAT
-
SJU
10h 00m
1 stop
Southwest Logo
6:00 am - 5:40 pm
SJU
-
SAT
12h 40m
1 stop
$369Southwest
Fri, Aug 14 - Mon, Aug 17
United Airlines Logo
6:40 am - 9:24 pm
SAT
-
SJU
13h 44m
2 stops
United Airlines Logo
2:20 pm - 9:16 pm
SJU
-
SAT
7h 56m
1 stop
$371United Airlines
Mon, Aug 10 - Mon, Aug 24
Delta Logo
5:20 am - 3:20 pm
SAT
-
STT
9h 00m
1 stop
Delta Logo
1:21 pm - 12:24 am
STT
-
SAT
12h 03m
1 stop
$465Delta
Sun, Jul 19 - Thu, Jul 23

Delta flights from San Antonio to Caribbean

Our best Delta deals on San Antonio to Caribbean flight tickets
Delta
Sep 22
SAT10:45 amSan Antonio
10h 15m
1 stop
SJU10:00 pmSan Juan Luis Munoz Marin Intl
Sep 29
SJU7:30 amSan Juan Luis Munoz Marin Intl
8h 46m
1 stop
SAT3:16 pmSan Antonio
$336
Delta
Aug 10
SAT10:46 amSan Antonio
10h 43m
1 stop
SJU10:29 pmSan Juan Luis Munoz Marin Intl
Aug 16
SJU2:59 pmSan Juan Luis Munoz Marin Intl
10h 29m
1 stop
SAT12:28 amSan Antonio
$411
Delta
Oct 1
SAT12:15 pmSan Antonio
8h 45m
1 stop
SJU10:00 pmSan Juan Luis Munoz Marin Intl
Oct 5
SJU5:41 pmSan Juan Luis Munoz Marin Intl
7h 34m
1 stop
SAT12:15 amSan Antonio
$461

American Airlines flights from San Antonio to Caribbean

Our best American Airlines deals on San Antonio to Caribbean flight tickets
American Airlines
Oct 18
SAT8:26 pmSan Antonio
17h 09m
2 stops
STT2:35 pmSaint Thomas Island Cyril E King
Oct 23
STT5:40 pmSaint Thomas Island Cyril E King
17h 33m
2 stops
SAT10:13 amSan Antonio
$260
American Airlines
Sep 22
SAT5:00 amSan Antonio
12h 10m
2 stops
SJU6:10 pmSan Juan Luis Munoz Marin Intl
Sep 29
SJU2:05 pmSan Juan Luis Munoz Marin Intl
10h 18m
1 stop
SAT11:23 pmSan Antonio
$346
American Airlines
Aug 9
SAT6:11 pmSan Antonio
17h 41m
1 stop
STT12:52 pmSaint Thomas Island Cyril E King
Aug 15
STT1:49 pmSaint Thomas Island Cyril E King
19h 44m
2 stops
SAT8:33 amSan Antonio
$347

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio to Caribbean 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 May 20, 2026.
Use the filters below to find and compare flights from San Antonio to Caribbean that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Sun 10/18

8:26 pm-2:35 pm

2 stops17h 09m

Saint Thomas Island Cyril E King

Fri 10/23

5:40 pm-10:13 am

2 stops17h 33m

$260

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Tue 9/22

10:45 am-10:00 pm

1 stop10h 15m

San Juan Luis Munoz Marin Intl

Tue 9/29

7:30 am-3:16 pm

1 stop8h 46m

$336

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Tue 9/22

5:00 am-6:10 pm

2 stops12h 10m

San Juan Luis Munoz Marin Intl

Tue 9/29

2:05 pm-11:23 pm

1 stop10h 18m

$346

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Fri 8/14

5:15 am-3:52 pm

1 stop9h 37m

Saint Thomas Island Cyril E King

Sat 8/22

4:42 pm-11:59 pm

1 stop8h 17m

$347
Quickest round-trip

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Mon 8/17

11:34 am-8:38 pm

1 stop8h 04m

San Juan Luis Munoz Marin Intl

Mon 8/24

7:00 am-3:43 pm

1 stop9h 43m

$359

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Wed 8/12

12:55 pm-10:00 pm

2 stops8h 05m

San Juan Luis Munoz Marin Intl

Thu 8/13

5:30 am-6:10 pm

1 stop13h 40m

$364

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Mon 9/21

7:35 am-3:42 pm

1 stop7h 07m

San Juan Luis Munoz Marin Intl

Wed 9/23

1:00 am-3:48 pm

2 stops15h 48m

$366

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Fri 8/14

11:50 am-10:50 pm

1 stop10h 00m

San Juan Luis Munoz Marin Intl

Mon 8/17

6:00 am-5:40 pm

1 stop12h 40m

$369

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Mon 8/10

6:40 am-9:24 pm

2 stops13h 44m

San Juan Luis Munoz Marin Intl

Mon 8/24

2:20 pm-9:16 pm

1 stop7h 56m

$371

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Sun 7/19

5:20 am-3:20 pm

1 stop9h 00m

Saint Thomas Island Cyril E King

Thu 7/23

1:21 pm-12:24 am

1 stop12h 03m

$465

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from San Antonio to Caribbean

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 cheapest month to fly to Caribbean?

In general, October is the cheapest month to fly from San Antonio to Caribbean. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $87. If you don’t want to visit Caribbean in October, then you should wait until September to fly from San Antonio, when ticket prices are also cheap, with an average price of $89.

What is the cheapest day to depart on your flight to Caribbean?

The cheapest day to depart from San Antonio to Caribbean is on a Wednesday when prices can be found for as low as $273. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $400. These prices are subject to change though, so be sure to set up a Price Alert for flights to Caribbean.

What is the cheapest time of day to depart on your flight to Caribbean?

At noon is the cheapest time of day to fly from San Antonio to Caribbean when you can find flight prices for as low as $212. Flying to Caribbean at noon is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive with an average ticket price of $376.

What is the cheapest San Antonio to Caribbean flight route?

Fly from San Antonio to San Juan Luis Munoz Marin Intl for the best San Antonio - Caribbean flight prices

How far in advance should I book a flight from San Antonio to Caribbean?

You are more likely to see cheaper flights to Caribbean from San Antonio when booking weeks ahead of your departure date. In general, you can expect to find flights to Caribbean for around $406 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Caribbean from San Antonio for as low as $337 on momondo.

What cabin class options are available on San Antonio to Caribbean flights?

There are 2 cabin classes available to choose from on San Antonio to Caribbean flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San Antonio to Caribbean flights?

You could potentially save up to 4% on your flight if you consider stops on a San Antonio to Caribbean flight.

Cheap San Antonio to Caribbean flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Antonio to Caribbean

Best Price Found

$176

Fastest flight time

4h 47m

Direct flights

None
The best one-way flight to Caribbean from San Antonio in the past 72 hours is $176. The best round-trip flight deal from San Antonio to Caribbean found on momondo in the last 72 hours is $515.
The fastest flight from San Antonio to Caribbean takes 4h 47m
There are no direct flights from San Antonio to Caribbean. There are no popular flight routes from San Antonio to Caribbean.

Frequently asked questions about flying from San Antonio to Caribbean

  • When did momondo last update prices for flights from San Antonio Airport to Caribbean?

    Prices for flights from San Antonio Airport to Caribbean are refreshed on a daily basis.

  • How many operators does momondo search for flights from San Antonio Airport to Caribbean?

  • How old do you have to be to fly from San Antonio Airport to Caribbean?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to Caribbean.

  • What documentation or ID do you need to fly to Caribbean?

    The required travel and health documents for your Caribbean trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Caribbean. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from San Antonio to Caribbean?

Best airlines flying from San Antonio to Caribbean

Compare and see reviews for airlines that fly from San Antonio to Caribbean with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $126Free CancellationRating
6.2
8,611 reviews
Search Spirit Airlines flights
DeltaPriceFrom $166Free CancellationRating
7.9
8,452 reviews
Search Delta flights
FrontierPriceFrom $168Free CancellationRating
5.6
2,945 reviews
Search Frontier flights
United AirlinesPriceFrom $232Free CancellationRating
7.4
9,739 reviews
Search United Airlines flights
American AirlinesPriceFrom $260Free CancellationRating
7.1
11,644 reviews
Search American Airlines flights
SouthwestPriceFrom $275Free CancellationRating
7.9
4,284 reviews
Search Southwest flights
JetBluePriceFrom $450Free CancellationRating
7.2
2,982 reviews
Search JetBlue flights

Why use momondo?

Why should I use momondo to find a flight deal from San Antonio to Caribbean?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Caribbean from San Antonio.

Can I find flights from San Antonio to Caribbean with flexible booking policies on momondo?

Yes. All flights to Caribbean from San Antonio on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from San Antonio to Caribbean?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Caribbean from San Antonio.

I’m not ready to book a flight from San Antonio to Caribbean right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Caribbean from San Antonio. 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.

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1 adult
Fri 6/19
Fri 6/26

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