What airlines fly to Caribbean Islands?

American Airlines, Southwest and Spirit Airlines are the top three most popular airlines that fly to Caribbean Islands from San Antonio according to our data. American Airlines is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Caribbean Islands. Keep in mind that there are 7 different airlines that fly to Caribbean Islands on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from San Antonio to Caribbean Islands?

United Airlines, Delta, and Southwest are the most popular carriers operating from San Antonio to Caribbean Islands

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?

As of May 2026, there are 7 operators available to choose from 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.

$138 Cheap Flights from San Antonio to Caribbean Islands in 2026

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Find the cheapest flights from San Antonio to Caribbean Islands

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:15 am - 3:52 pm

SAT

STT

9h 37m

1 stop

1:49 pm - 10:09 am

STT

SAT

21h 20m

2 stops

$260American Airlines

Fri, Aug 28 - Tue, Sep 1

10:45 am - 10:23 pm

SAT

SJU

10h 38m

1 stop

2:26 pm - 12:15 am

SJU

SAT

10h 49m

1 stop

$336Delta

Fri, Sep 4 - Fri, Sep 11

4:22 pm - 7:55 am

SAT

SJU

14h 33m

1 stop

6:00 am - 3:37 pm

SJU

SAT

10h 37m

1 stop

$343Frontier

Sat, Jun 13 - Fri, Jun 19

6:11 pm - 12:52 pm

SAT

STT

17h 41m

1 stop

4:42 pm - 11:59 pm

STT

SAT

8h 17m

1 stop

$347American Airlines

Sun, Aug 16 - Thu, Aug 20

7:20 pm - 5:29 am

SAT

SJU

9h 09m

1 stop

2:05 am - 8:27 am

SJU

SAT

7h 22m

1 stop

$359United Airlines

Mon, Jul 27 - Tue, Aug 4

4:26 pm - 2:11 am

SAT

SJU

8h 45m

1 stop

6:00 am - 3:41 pm

SJU

SAT

10h 41m

1 stop

$361Frontier

Fri, Jul 17 - Sat, Jul 25

4:26 pm - 2:11 am

SAT

SJU

8h 45m

1 stop

3:06 am - 3:41 pm

SJU

SAT

13h 35m

1 stop

$366Frontier

Mon, Jul 27 - Fri, Jul 31

5:30 am - 1:30 pm

SAT

MBJ

8h 00m

1 stop

2:40 pm - 8:27 am

MBJ

SAT

17h 47m

1 stop

$378United Airlines

Tue, Jun 16 - Wed, Jul 1

12:00 pm - 11:25 pm

SAT

SJU

10h 25m

2 stops

6:30 am - 12:00 pm

SJU

SAT

6h 30m

1 stop

$397Southwest

Sun, Aug 9 - Mon, Aug 17

2:35 pm - 12:23 pm

SAT

PUJ

20h 48m

2 stops

4:00 pm - 12:44 am

PUJ

SAT

9h 44m

1 stop

$483Delta

Tue, Jun 2 - Thu, Jun 4

Frontier flights from San Antonio to Caribbean Islands

Our best Frontier deals on San Antonio to Caribbean Islands flight tickets

Frontier

Jun 13

SAT4:22 pmSan Antonio

14h 33m

1 stop

SJU7:55 amSan Juan Luis Munoz Marin Intl

Jun 19

SJU6:00 amSan Juan Luis Munoz Marin Intl

10h 37m

1 stop

SAT3:37 pmSan Antonio

$343

Frontier

Jul 17

SAT4:26 pmSan Antonio

8h 45m

1 stop

SJU2:11 amSan Juan Luis Munoz Marin Intl

Jul 25

SJU6:00 amSan Juan Luis Munoz Marin Intl

10h 41m

1 stop

SAT3:41 pmSan Antonio

$361

Frontier

Jul 27

SAT4:26 pmSan Antonio

8h 45m

1 stop

SJU2:11 amSan Juan Luis Munoz Marin Intl

Jul 31

SJU3:06 amSan Juan Luis Munoz Marin Intl

13h 35m

1 stop

SAT3:41 pmSan Antonio

$366

JetBlue flights from San Antonio to Caribbean Islands

Our best JetBlue deals on San Antonio to Caribbean Islands flight tickets

JetBlue

May 15

SAT10:52 amSan Antonio

10h 25m

1 stop

SJU10:17 pmSan Juan Luis Munoz Marin Intl

May 17

SJU2:48 pmSan Juan Luis Munoz Marin Intl

8h 43m

1 stop

SAT10:31 pmSan Antonio

$487

JetBlue

May 21

SAT2:27 pmSan Antonio

6h 50m

1 stop

SJU10:17 pmSan Juan Luis Munoz Marin Intl

May 25

SJU5:43 pmSan Juan Luis Munoz Marin Intl

8h 01m

1 stop

SAT12:44 amSan Antonio

$488

JetBlue

May 21

SAT5:25 amSan Antonio

7h 00m

1 stop

PUJ1:25 pmPunta Cana

May 26

PUJ1:05 pmPunta Cana

8h 41m

1 stop

SAT8:46 pmSan Antonio

$654

momondo Fare Finder

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

Cheapest round-trip

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Fri 8/28

5:15 am-3:52 pm

1 stop9h 37m

Saint Thomas Island Cyril E King

Tue 9/1

1:49 pm-10:09 am

2 stops21h 20m

$260

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Fri 9/4

10:45 am-10:23 pm

1 stop10h 38m

San Juan Luis Munoz Marin Intl

Fri 9/11

2:26 pm-12:15 am

1 stop10h 49m

$336

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Sat 6/13

4:22 pm-7:55 am

1 stop14h 33m

San Juan Luis Munoz Marin Intl

Fri 6/19

6:00 am-3:37 pm

1 stop10h 37m

$343

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Sun 8/16

6:11 pm-12:52 pm

1 stop17h 41m

Saint Thomas Island Cyril E King

Thu 8/20

4:42 pm-11:59 pm

1 stop8h 17m

$347

Quickest round-trip

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Mon 7/27

7:20 pm-5:29 am

1 stop9h 09m

San Juan Luis Munoz Marin Intl

Tue 8/4

2:05 am-8:27 am

1 stop7h 22m

$359

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Fri 7/17

4:26 pm-2:11 am

1 stop8h 45m

San Juan Luis Munoz Marin Intl

Sat 7/25

6:00 am-3:41 pm

1 stop10h 41m

$361

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Mon 7/27

4:26 pm-2:11 am

1 stop8h 45m

San Juan Luis Munoz Marin Intl

Fri 7/31

3:06 am-3:41 pm

1 stop13h 35m

$366

San AntonioMontego Bay

SAT - MBJ

SATMBJ

San Antonio

Tue 6/16

5:30 am-1:30 pm

1 stop8h 00m

Montego Bay Sangster Intl

Wed 7/1

2:40 pm-8:27 am

1 stop17h 47m

$378

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Sun 8/9

12:00 pm-11:25 pm

2 stops10h 25m

San Juan Luis Munoz Marin Intl

Mon 8/17

6:30 am-12:00 pm

1 stop6h 30m

$397

San AntonioPunta Cana

SAT - PUJ

SATPUJ

San Antonio

Tue 6/2

2:35 pm-12:23 pm

2 stops20h 48m

Punta Cana

Thu 6/4

4:00 pm-12:44 am

1 stop9h 44m

$483

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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 $166. The month of May is another great option to travel to Caribbean Islands, with average flight prices from San Antonio averaging around $179.

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 $400. 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 morning because they tend to be around $375. 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 from San Antonio 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 $393 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 $317 on momondo.

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	5h 04m
Direct flights	None

The fastest flight from San Antonio to Caribbean Islands takes 5h 04m

There are no direct flights from San Antonio to Caribbean Islands. There are no popular flight routes from San Antonio to Caribbean Islands.

Search flight deals

Frequently asked questions about flying from San Antonio to Caribbean Islands

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?
As of May 2026, there are 7 operators available to choose from 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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from San Antonio to Caribbean Islands is Boeing 737 MAX 8 (19.74% of total bookings). The next most popular plane models are Airbus A320-100/200 (17.05%), Boeing 737-800 Passenger/BBJ2 (winglets) (10.60%), and Airbus A319 (8.44%).

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
Spirit Airlines	PriceFrom $127	Free Cancellation	Rating 6.3 8,636 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $168	Free Cancellation	Rating 5.6 2,957 reviews	Search Frontier flights
Delta	PriceFrom $168	Free Cancellation	Rating 7.9 8,455 reviews	Search Delta flights
United Airlines	PriceFrom $232	Free Cancellation	Rating 7.4 9,694 reviews	Search United Airlines flights
American Airlines	PriceFrom $260	Free Cancellation	Rating 7.1 11,667 reviews	Search American Airlines flights
Southwest	PriceFrom $275	Free Cancellation	Rating 8.0 4,306 reviews	Search Southwest flights
JetBlue	PriceFrom $450	Free Cancellation	Rating 7.1 2,977 reviews	Search JetBlue 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.