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Cheap flights from San Antonio to Caribbean Islands from $87

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 Islands departing on 1/5. 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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Find the cheapest flights from San Antonio to Caribbean Islands

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
1:57 pm - 12:43 am
SAT
-
SJU
8h 46m1 stop
Frontier Logo
3:53 am - 1:12 pm
SJU
-
SAT
11h 19m1 stop
$199Frontier
Mon, Feb 23 - Wed, Mar 4
Multiple Airlines Logo
10:42 am - 5:23 pm
SAT
-
SJU
4h 41mnonstop
Multiple Airlines Logo
9:23 pm - 6:18 pm
SJU
-
SAT
22h 55m1 stop
$201Multiple Airlines
Fri, Jan 2 - Sat, Jan 10
Spirit Airlines Logo
10:35 am - 2:15 pm
SAT
-
SXM
25h 40m1 stop
Spirit Airlines Logo
3:20 pm - 9:30 am
SXM
-
SAT
20h 10m1 stop
$290Spirit Airlines
Sun, Feb 1 - Sun, Feb 8
Delta Logo
5:20 am - 4:10 pm
SAT
-
STT
8h 50m1 stop
Delta Logo
4:25 pm - 11:23 pm
STT
-
SAT
8h 58m1 stop
$295Delta
Tue, Jan 6 - Mon, Jan 12
Spirit Airlines Logo
10:26 am - 2:10 pm
SAT
-
SXM
25h 44m1 stop
Spirit Airlines Logo
3:15 pm - 9:30 am
SXM
-
SAT
20h 15m1 stop
$305Spirit Airlines
Wed, Feb 18 - Fri, Feb 27
Delta Logo
5:10 am - 4:25 pm
SAT
-
STT
9h 15m1 stop
Delta Logo
3:10 pm - 11:23 pm
STT
-
SAT
10h 13m1 stop
$322Delta
Fri, Jan 2 - Wed, Jan 14
American Airlines Logo
6:00 pm - 3:56 pm
SAT
-
STT
19h 56m2 stops
American Airlines Logo
6:39 pm - 9:52 am
STT
-
SAT
17h 13m2 stops
$335American Airlines
Mon, Jan 5 - Fri, Jan 9
American Airlines Logo
5:10 am - 5:05 pm
SAT
-
STT
9h 55m1 stop
American Airlines Logo
6:39 pm - 4:30 pm
STT
-
SAT
23h 51m1 stop
$357American Airlines
Wed, Jan 14 - Wed, Jan 21
United Airlines Logo
7:05 am - 4:00 pm
SAT
-
PLS
7h 55m1 stop
United Airlines Logo
5:06 pm - 11:19 am
PLS
-
SAT
19h 13m1 stop
$404United Airlines
Thu, Jan 1 - Wed, Jan 7
United Airlines Logo
7:05 am - 4:00 pm
SAT
-
PLS
7h 55m1 stop
United Airlines Logo
5:06 pm - 12:24 pm
PLS
-
SAT
20h 18m2 stops
$409United Airlines
Thu, Jan 1 - Wed, Jan 7

Spirit Airlines flights from San Antonio to Caribbean Islands

Our best Spirit Airlines deals on San Antonio to Caribbean Islands flight tickets
Spirit Airlines
Dec 31
SAT10:42 amSan Antonio
4h 41m
SJU5:23 pmSan Juan Luis Munoz Marin Intl
Jan 7
SJU6:30 amSan Juan Luis Munoz Marin Intl
5h 07m
SAT9:37 amSan Antonio
$246
Find similar
Spirit Airlines
Jan 5
SAT10:42 amSan Antonio
4h 41m
SJU5:23 pmSan Juan Luis Munoz Marin Intl
Apr 17
SJU3:43 pmSan Juan Luis Munoz Marin Intl
7h 46m
1 stop
SAT10:29 pmSan Antonio
$279
Find similar
Spirit Airlines
Jan 2
SAT10:42 amSan Antonio
4h 41m
SJU5:23 pmSan Juan Luis Munoz Marin Intl
Jan 12
SJU8:05 pmSan Juan Luis Munoz Marin Intl
29h 47m
1 stop
SAT11:52 pmSan Antonio
$285
Find similar

Frontier flights from San Antonio to Caribbean Islands

Our best Frontier deals on San Antonio to Caribbean Islands flight tickets
Frontier
Feb 23
SAT1:57 pmSan Antonio
8h 46m
1 stop
SJU12:43 amSan Juan Luis Munoz Marin Intl
Mar 4
SJU3:53 amSan Juan Luis Munoz Marin Intl
11h 19m
1 stop
SAT1:12 pmSan Antonio
$199
Find similar
Frontier
Feb 12
SAT1:57 pmSan Antonio
7h 56m
1 stop
SJU11:53 pmSan Juan Luis Munoz Marin Intl
Feb 20
SJU5:25 pmSan Juan Luis Munoz Marin Intl
21h 47m
1 stop
SAT1:12 pmSan Antonio
$215
Find similar
Frontier
Jan 2
SAT7:11 pmSan Antonio
11h 43m
1 stop
SJU8:54 amSan Juan Luis Munoz Marin Intl
Jan 10
SJU9:23 pmSan Juan Luis Munoz Marin Intl
22h 55m
1 stop
SAT6:18 pmSan Antonio
$217
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio to Caribbean Islands 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 December 18, 2025.
Use the filters below to find and compare flights from San Antonio to Caribbean Islands that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Mon 2/23

1:57 pm-12:43 am

1 stop8h 46m

San Juan Luis Munoz Marin Intl

Wed 3/4

3:53 am-1:12 pm

1 stop11h 19m

$199

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Fri 1/2

10:42 am-5:23 pm

Nonstop4h 41m

San Juan Luis Munoz Marin Intl

Sat 1/10

9:23 pm-6:18 pm

1 stop22h 55m

$201

San AntonioSimpson Bay

SAT - SXM

SATSXM

San Antonio

Sun 2/1

10:35 am-2:15 pm

1 stop25h 40m

Simpson Bay Princess Juliana

Sun 2/8

3:20 pm-9:30 am

1 stop20h 10m

$290

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Tue 1/6

5:20 am-4:10 pm

1 stop8h 50m

Saint Thomas Island Cyril E King

Mon 1/12

4:25 pm-11:23 pm

1 stop8h 58m

$295

San AntonioSimpson Bay

SAT - SXM

SATSXM

San Antonio

Wed 2/18

10:26 am-2:10 pm

1 stop25h 44m

Simpson Bay Princess Juliana

Fri 2/27

3:15 pm-9:30 am

1 stop20h 15m

$305

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Fri 1/2

5:10 am-4:25 pm

1 stop9h 15m

Saint Thomas Island Cyril E King

Wed 1/14

3:10 pm-11:23 pm

1 stop10h 13m

$322

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Mon 1/5

6:00 pm-3:56 pm

2 stops19h 56m

Saint Thomas Island Cyril E King

Fri 1/9

6:39 pm-9:52 am

2 stops17h 13m

$335

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Wed 1/14

5:10 am-5:05 pm

1 stop9h 55m

Saint Thomas Island Cyril E King

Wed 1/21

6:39 pm-4:30 pm

1 stop23h 51m

$357

San AntonioProvidenciales

SAT - PLS

SATPLS

San Antonio

Thu 1/1

7:05 am-4:00 pm

1 stop7h 55m

Providenciales

Wed 1/7

5:06 pm-11:19 am

1 stop19h 13m

$404

San AntonioProvidenciales

SAT - PLS

SATPLS

San Antonio

Thu 1/1

7:05 am-4:00 pm

1 stop7h 55m

Providenciales

Wed 1/7

5:06 pm-12:24 pm

2 stops20h 18m

$409

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Caribbean Islands from

How to get the cheapest flight ticket from San Antonio to Caribbean Islands

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 Islands?

The month of October is, on average, the cheapest month to fly to Caribbean Islands from San Antonio, with most prices found around $305. The month of September is another great option to travel to Caribbean Islands, with average flight prices from San Antonio averaging around $311.

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

The cheapest day to depart from San Antonio to Caribbean Islands is on a Tuesday. Travelers who choose to depart for Caribbean Islands on a Tuesday will often find tickets for as low as $236. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $382. These prices are subject to change though, so be sure to set up a Price Alert for flights to Caribbean Islands.

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

According to our data, the cheapest time of day to fly to Caribbean Islands is at noon. momondo users have found flights departing from San Antonio to Caribbean Islands at noon for as low as $212. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the evening because they tend to be around $438. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest San Antonio to Caribbean Islands flight route?

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

How far in advance should I book a flight to Caribbean Islands?

You are more likely to see cheaper flights to Caribbean Islands from San Antonio when booking weeks ahead of your departure date. In general, you can expect to find flights to Caribbean Islands for around $391 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Caribbean Islands from San Antonio for as low as $306 on momondo.

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

There are 2 cabin classes available to choose from on San Antonio to Caribbean Islands 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 Islands flights?

No. A direct flight is the cheapest option for a flight between San Antonio to Caribbean Islands.

Cheap San Antonio to Caribbean Islands flight deals and tips

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

Fastest flight time

4h 41m

Direct flights

Tue, Thu and Sat

Airports in Caribbean Islands

99 airports
The fastest flight from San Antonio to Caribbean Islands takes 4h 41m
Direct flights go from San Antonio to Caribbean Islands on Tuesday, Thursday and Saturday. There are no airlines offering direct flights.
There are 99 airports in Caribbean Islands. From San Antonio there are direct flights to San Juan Luis Munoz Marin Intl (SJU).
Search flight deals

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

    Prices for flights from San Antonio Airport to Caribbean Islands are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to Caribbean Islands.

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

    The travel and health documents required for your trip to Caribbean Islands can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Caribbean Islands. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from San Antonio to Caribbean Islands

Compare and see reviews for airlines that fly from San Antonio to Caribbean Islands with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $133Free CancellationRating
5.8
3,082 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $164Free CancellationRating
6.3
8,189 reviews
Search Spirit Airlines flights
DeltaPriceFrom $211Free CancellationRating
7.9
8,005 reviews
Search Delta flights
United AirlinesPriceFrom $245Free CancellationRating
7.4
9,091 reviews
Search United Airlines flights
SouthwestPriceFrom $265Free CancellationRating
7.9
4,249 reviews
Search Southwest flights
American AirlinesPriceFrom $306Free CancellationRating
7.2
11,053 reviews
Search American Airlines flights

Why use momondo?

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

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 Islands from San Antonio.

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

Yes. momondo enables you to select and highlight flights to Caribbean Islands from San Antonio with this policy.

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

Once all potential San Antonio to Caribbean Islands flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to Caribbean Islands 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.

An easier way to manage your Caribbean Islands trip

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Sat 1/17
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