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

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

What airlines fly to Caribbean?

American Airlines, Southwest and United Airlines are the top three most popular airlines that fly to Caribbean 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. Keep in mind that there are 6 different airlines that fly to Caribbean on a routine basis, so you have a few additional options to choose from.

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?

As of July 2026, there are 6 operators available to choose from 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.

$138 Cheap Flights from San Antonio to Caribbean in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Antonio to Caribbean

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:45 am - 4:15 pm

SAT

STT

7h 30m

1 stop

3:10 pm - 12:28 am

STT

SAT

11h 18m

1 stop

$280Delta

Mon, Jan 4 - Thu, Feb 25

6:45 am - 4:15 pm

SAT

STT

7h 30m

1 stop

3:10 pm - 12:28 am

STT

SAT

11h 18m

1 stop

$280Delta

Mon, Jan 4 - Wed, Mar 3

5:43 pm - 12:58 pm

SAT

STT

18h 15m

2 stops

1:48 pm - 8:40 am

STT

SAT

19h 52m

2 stops

$280American Airlines

Sat, Oct 17 - Tue, Oct 20

7:06 pm - 4:03 pm

SAT

STT

18h 57m

2 stops

3:15 pm - 8:29 am

STT

SAT

19h 14m

2 stops

$280American Airlines

Tue, Nov 3 - Mon, Nov 9

9:55 am - 11:59 pm

SAT

SJU

13h 04m

1 stop

5:37 pm - 4:13 pm

SJU

SAT

23h 36m

2 stops

$331Multiple Airlines

Thu, Aug 27 - Tue, Sep 1

9:51 am - 8:11 am

SAT

SJU

21h 20m

1 stop

5:37 pm - 4:13 pm

SJU

SAT

23h 36m

2 stops

$340Multiple Airlines

Sat, Aug 29 - Tue, Sep 1

12:00 pm - 8:38 pm

SAT

SJU

7h 38m

1 stop

1:00 am - 3:43 pm

SJU

SAT

15h 43m

2 stops

$356United Airlines

Tue, Sep 8 - Mon, Sep 14

7:35 am - 3:12 pm

SAT

SJU

6h 37m

1 stop

7:00 am - 3:43 pm

SJU

SAT

9h 43m

1 stop

$356United Airlines

Tue, Sep 8 - Tue, Sep 15

4:00 pm - 11:45 pm

SAT

SJU

6h 45m

1 stop

6:15 am - 11:45 am

SJU

SAT

7h 30m

1 stop

$356Southwest

Wed, Oct 21 - Tue, Nov 3

11:50 am - 10:50 pm

SAT

SJU

10h 00m

1 stop

6:30 am - 11:55 am

SJU

SAT

6h 25m

1 stop

$356Southwest

Fri, Aug 28 - Fri, Sep 4

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American Airlines flights from San Antonio to Caribbean

Our best American Airlines deals on San Antonio to Caribbean flight tickets

American Airlines

Nov 3

SAT5:47 pmSan Antonio

18h 36m

2 stops

STT2:23 pmSaint Thomas Island Cyril E King

Nov 9

STT3:15 pmSaint Thomas Island Cyril E King

19h 14m

2 stops

SAT8:29 amSan Antonio

$280

American Airlines

Jan 20

SAT5:10 amSan Antonio

8h 49m

1 stop

SJU3:59 pmSan Juan Luis Munoz Marin Intl

Jan 26

SJU2:52 pmSan Juan Luis Munoz Marin Intl

11h 07m

1 stop

SAT11:59 pmSan Antonio

$361

American Airlines

Sep 9

SAT5:00 amSan Antonio

14h 47m

2 stops

SJU8:47 pmSan Juan Luis Munoz Marin Intl

Sep 16

SJU6:00 amSan Juan Luis Munoz Marin Intl

17h 03m

1 stop

SAT10:03 pmSan Antonio

$363

United Airlines flights from San Antonio to Caribbean

Our best United Airlines deals on San Antonio to Caribbean flight tickets

United Airlines

Aug 22

SAT11:34 amSan Antonio

8h 04m

1 stop

SJU8:38 pmSan Juan Luis Munoz Marin Intl

Aug 26

SJU7:00 amSan Juan Luis Munoz Marin Intl

7h 29m

1 stop

SAT1:29 pmSan Antonio

$356

United Airlines

Aug 22

SAT11:34 amSan Antonio

8h 04m

1 stop

SJU8:38 pmSan Juan Luis Munoz Marin Intl

Aug 25

SJU1:00 amSan Juan Luis Munoz Marin Intl

15h 43m

2 stops

SAT3:43 pmSan Antonio

$370

United Airlines

Oct 30

SAT11:45 amSan Antonio

7h 39m

1 stop

SJU8:24 pmSan Juan Luis Munoz Marin Intl

Oct 31

SJU2:05 amSan Juan Luis Munoz Marin Intl

11h 39m

1 stop

SAT12:44 pmSan Antonio

$372

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Mon 1/4

6:45 am-4:15 pm

1 stop7h 30m

Saint Thomas Island Cyril E King

Thu 2/25

3:10 pm-12:28 am

1 stop11h 18m

$280

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Mon 1/4

6:45 am-4:15 pm

1 stop7h 30m

Saint Thomas Island Cyril E King

Wed 3/3

3:10 pm-12:28 am

1 stop11h 18m

$280

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Sat 10/17

5:43 pm-12:58 pm

2 stops18h 15m

Saint Thomas Island Cyril E King

Tue 10/20

1:48 pm-8:40 am

2 stops19h 52m

$280

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Tue 11/3

7:06 pm-4:03 pm

2 stops18h 57m

Saint Thomas Island Cyril E King

Mon 11/9

3:15 pm-8:29 am

2 stops19h 14m

$280

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Thu 8/27

9:55 am-11:59 pm

1 stop13h 04m

San Juan Luis Munoz Marin Intl

Tue 9/1

5:37 pm-4:13 pm

2 stops23h 36m

$331

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Sat 8/29

9:51 am-8:11 am

1 stop21h 20m

San Juan Luis Munoz Marin Intl

Tue 9/1

5:37 pm-4:13 pm

2 stops23h 36m

$340

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Tue 9/8

12:00 pm-8:38 pm

1 stop7h 38m

San Juan Luis Munoz Marin Intl

Mon 9/14

1:00 am-3:43 pm

2 stops15h 43m

$356

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Tue 9/8

7:35 am-3:12 pm

1 stop6h 37m

San Juan Luis Munoz Marin Intl

Tue 9/15

7:00 am-3:43 pm

1 stop9h 43m

$356

Quickest round-trip

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Wed 10/21

4:00 pm-11:45 pm

1 stop6h 45m

San Juan Luis Munoz Marin Intl

Tue 11/3

6:15 am-11:45 am

1 stop7h 30m

$356

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Fri 8/28

11:50 am-10:50 pm

1 stop10h 00m

San Juan Luis Munoz Marin Intl

Fri 9/4

6:30 am-11:55 am

1 stop6h 25m

$356

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

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?

In general, August 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 $414. If you don’t want to visit Caribbean in August, then you should wait until September to fly from San Antonio, when ticket prices are also cheap, with an average price of $420.

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 $424 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 $400 on momondo.

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

There are 3 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 57m
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 57m

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

Search flight deals

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?
As of July 2026, there are 6 operators available to choose from 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?
momondo data reveals that the most frequently booked plane model on the route from San Antonio to Caribbean is Airbus A320neo, representing 40.91% of all bookings. The subsequent popular models are Airbus A321-100/200 at 18.18%, Airbus A321neo at 18.18%, and Airbus A320-100/200 at 13.64%.

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
Delta	PriceFrom $166	Free Cancellation	Rating 7.8 8,495 reviews	Search Delta flights
Frontier	PriceFrom $194	Free Cancellation	Rating 5.6 2,748 reviews	Search Frontier flights
United Airlines	PriceFrom $232	Free Cancellation	Rating 7.4 10,047 reviews	Search United Airlines flights
American Airlines	PriceFrom $264	Free Cancellation	Rating 7.1 11,848 reviews	Search American Airlines flights
Southwest	PriceFrom $275	Free Cancellation	Rating 8.0 4,227 reviews	Search Southwest flights
JetBlue	PriceFrom $450	Free Cancellation	Rating 7.1 3,028 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.