What airlines fly to Caribbean Islands?

American Airlines, Spirit Airlines and Southwest 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 48% 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?

American Airlines, United Airlines, and Delta 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 March 2026, there are 6 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.

$88 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.

5:30 am - 3:43 pm

SAT

STT

9h 13m

1 stop

2:10 pm - 10:58 pm

STT

SAT

9h 48m

1 stop

$240United Airlines

Sat, Apr 11 - Wed, Apr 15

5:25 am - 4:15 pm

SAT

STT

9h 50m

1 stop

2:05 pm - 8:23 am

STT

SAT

19h 18m

2 stops

$244American Airlines

Mon, Apr 27 - Fri, May 1

5:25 am - 4:15 pm

SAT

STT

9h 50m

1 stop

2:05 pm - 8:23 am

STT

SAT

19h 18m

2 stops

$262American Airlines

Sat, Apr 11 - Tue, Apr 14

11:45 am - 11:50 pm

SAT

SJU

11h 05m

2 stops

1:00 am - 10:34 am

SJU

SAT

10h 34m

1 stop

$280United Airlines

Tue, May 5 - Wed, May 6

12:20 pm - 11:40 pm

SAT

SJU

10h 20m

1 stop

6:25 am - 6:45 pm

SJU

SAT

13h 20m

1 stop

$296Southwest

Sat, Apr 25 - Sat, May 2

1:22 pm - 9:59 pm

SAT

SJU

7h 37m

1 stop

1:45 am - 12:27 pm

SJU

SAT

11h 42m

1 stop

$299Spirit Airlines

Fri, Apr 10 - Mon, Apr 13

10:22 am - 6:55 pm

SAT

SJU

7h 33m

1 stop

2:59 am - 1:17 pm

SJU

SAT

11h 18m

1 stop

$300Spirit Airlines

Sun, Apr 12 - Tue, Apr 14

5:20 am - 12:00 pm

SAT

GCM

6h 40m

1 stop

1:19 pm - 12:44 am

GCM

SAT

11h 25m

1 stop

$337Delta

Wed, May 6 - Wed, May 13

6:20 am - 2:48 pm

SAT

STT

7h 28m

1 stop

1:22 pm - 12:46 am

STT

SAT

12h 24m

1 stop

$340Delta

Mon, Apr 20 - Tue, Apr 28

7:25 am - 6:30 pm

SAT

NAS

10h 05m

2 stops

8:45 am - 3:50 pm

NAS

SAT

8h 05m

2 stops

$534Southwest

Tue, Apr 21 - Tue, Apr 28

Southwest flights from San Antonio to Caribbean Islands

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

Southwest

Apr 25

SAT12:20 pmSan Antonio

10h 20m

1 stop

SJU11:40 pmSan Juan Luis Munoz Marin Intl

May 2

SJU6:25 amSan Juan Luis Munoz Marin Intl

13h 20m

1 stop

SAT6:45 pmSan Antonio

$296

Southwest

May 6

SAT4:55 pmSan Antonio

19h 15m

2 stops

GCM12:10 pmGeorge Town Owen Roberts Intl

May 13

GCM1:05 pmGeorge Town Owen Roberts Intl

10h 45m

2 stops

SAT11:50 pmSan Antonio

$504

Southwest

Apr 21

SAT5:55 amSan Antonio

6h 20m

1 stop

NAS1:15 pmNassau Intl

Apr 28

NAS2:10 pmNassau Intl

7h 55m

1 stop

SAT9:05 pmSan Antonio

$576

Spirit Airlines flights from San Antonio to Caribbean Islands

Our best Spirit Airlines deals on San Antonio to Caribbean Islands flight tickets

Spirit Airlines

Mar 31

SAT10:22 amSan Antonio

21h 31m

2 stops

SJU8:53 amSan Juan Luis Munoz Marin Intl

Apr 8

SJU1:45 amSan Juan Luis Munoz Marin Intl

11h 42m

1 stop

SAT12:27 pmSan Antonio

$284

Spirit Airlines

Apr 10

SAT1:22 pmSan Antonio

7h 37m

1 stop

SJU9:59 pmSan Juan Luis Munoz Marin Intl

Apr 13

SJU1:45 amSan Juan Luis Munoz Marin Intl

11h 42m

1 stop

SAT12:27 pmSan Antonio

$299

Spirit Airlines

Apr 12

SAT10:22 amSan Antonio

7h 33m

1 stop

SJU6:55 pmSan Juan Luis Munoz Marin Intl

Apr 14

SJU2:59 amSan Juan Luis Munoz Marin Intl

11h 18m

1 stop

SAT1:17 pmSan Antonio

$300

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

Sat 4/11

5:30 am-3:43 pm

1 stop9h 13m

Saint Thomas Island Cyril E King

Wed 4/15

2:10 pm-10:58 pm

1 stop9h 48m

$240

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Mon 4/27

5:25 am-4:15 pm

1 stop9h 50m

Saint Thomas Island Cyril E King

Fri 5/1

2:05 pm-8:23 am

2 stops19h 18m

$244

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Sat 4/11

5:25 am-4:15 pm

1 stop9h 50m

Saint Thomas Island Cyril E King

Tue 4/14

2:05 pm-8:23 am

2 stops19h 18m

$262

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Tue 5/5

11:45 am-11:50 pm

2 stops11h 05m

San Juan Luis Munoz Marin Intl

Wed 5/6

1:00 am-10:34 am

1 stop10h 34m

$280

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Sat 4/25

12:20 pm-11:40 pm

1 stop10h 20m

San Juan Luis Munoz Marin Intl

Sat 5/2

6:25 am-6:45 pm

1 stop13h 20m

$296

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Fri 4/10

1:22 pm-9:59 pm

1 stop7h 37m

San Juan Luis Munoz Marin Intl

Mon 4/13

1:45 am-12:27 pm

1 stop11h 42m

$299

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Sun 4/12

10:22 am-6:55 pm

1 stop7h 33m

San Juan Luis Munoz Marin Intl

Tue 4/14

2:59 am-1:17 pm

1 stop11h 18m

$300

Quickest round-trip

San AntonioGeorge Town

SAT - GCM

SATGCM

San Antonio

Wed 5/6

5:20 am-12:00 pm

1 stop6h 40m

George Town Owen Roberts Intl

Wed 5/13

1:19 pm-12:44 am

1 stop11h 25m

$337

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Mon 4/20

6:20 am-2:48 pm

1 stop7h 28m

Saint Thomas Island Cyril E King

Tue 4/28

1:22 pm-12:46 am

1 stop12h 24m

$340

San AntonioNassau

SAT - NAS

SATNAS

San Antonio

Tue 4/21

7:25 am-6:30 pm

2 stops10h 05m

Nassau Intl

Tue 4/28

8:45 am-3:50 pm

2 stops8h 05m

$534

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 September is, on average, the cheapest month to fly to Caribbean Islands from San Antonio, with most prices found around $298. The month of October is another great option to travel to Caribbean Islands, with average flight prices from San Antonio averaging around $305.

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 $373. 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 $382 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 $294 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 55m
Direct flights	None

The fastest flight from San Antonio to Caribbean Islands takes 4h 55m

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

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 March 2026, there are 6 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 (22.26% of total bookings). The next most popular plane models are Airbus A320-100/200 (18.16%), Boeing 737-800 Passenger/BBJ2 (winglets) (10.47%), and Airbus A321-100/200 (8.37%).

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 $121	Free Cancellation	Rating 6.3 8,534 reviews	Search Spirit Airlines flights
Delta	PriceFrom $138	Free Cancellation	Rating 7.9 8,322 reviews	Search Delta flights
Frontier	PriceFrom $168	Free Cancellation	Rating 5.7 3,018 reviews	Search Frontier flights
United Airlines	PriceFrom $219	Free Cancellation	Rating 7.4 9,469 reviews	Search United Airlines flights
American Airlines	PriceFrom $260	Free Cancellation	Rating 7.1 11,491 reviews	Search American Airlines flights
Southwest	PriceFrom $265	Free Cancellation	Rating 8.0 4,331 reviews	Search Southwest 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.