What airlines fly to Caribbean?

American Airlines, Spirit Airlines and Southwest 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 47% of people opting to fly with this airline when traveling to Caribbean. Keep in mind that there are 7 different airlines that fly to Caribbean 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?

United Airlines, American Airlines, and Spirit Airlines are the most popular carriers operating 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 March 2026, there are 7 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.

$88 Cheap Flights from San Antonio to Caribbean in 2026

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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.

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

5:00 am - 4:15 pm

SAT

STT

10h 15m

2 stops

4:48 pm - 11:59 pm

STT

SAT

8h 11m

1 stop

$244American Airlines

Sun, May 10 - Thu, May 21

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

10:22 am - 8:53 am

SAT

SJU

21h 31m

2 stops

2:59 am - 1:17 pm

SJU

SAT

11h 18m

1 stop

$276Spirit Airlines

Sat, Apr 11 - Fri, Apr 17

8:31 pm - 4:15 pm

SAT

STT

18h 44m

2 stops

12:25 pm - 11:15 pm

STT

SAT

11h 50m

1 stop

$280American Airlines

Sun, Apr 12 - Tue, Apr 14

10:22 am - 6:55 pm

SAT

SJU

7h 33m

1 stop

2:59 am - 1:17 pm

SJU

SAT

11h 18m

1 stop

$282Spirit Airlines

Sun, Apr 12 - Wed, Apr 15

8:00 am - 8:24 pm

SAT

SJU

11h 24m

1 stop

2:45 pm - 12:46 am

SJU

SAT

11h 01m

1 stop

$291Delta

Sat, May 2 - Wed, May 6

6:20 am - 2:48 pm

SAT

STT

7h 28m

1 stop

3:05 pm - 12:46 am

STT

SAT

10h 41m

1 stop

$296Delta

Mon, Apr 20 - Tue, Apr 28

5:30 am - 3:43 pm

SAT

STT

9h 13m

1 stop

2:10 pm - 10:58 pm

STT

SAT

9h 48m

1 stop

$330United Airlines

Sat, Apr 11 - Wed, Apr 15

7:25 am - 6:30 pm

SAT

NAS

10h 05m

2 stops

2:10 pm - 11:15 pm

NAS

SAT

10h 05m

2 stops

$534Southwest

Tue, Apr 21 - Tue, Apr 28

Spirit Airlines flights from San Antonio to Caribbean

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

Spirit Airlines

Apr 11

SAT10:22 amSan Antonio

21h 31m

2 stops

SJU8:53 amSan Juan Luis Munoz Marin Intl

Apr 17

SJU2:59 amSan Juan Luis Munoz Marin Intl

11h 18m

1 stop

SAT1:17 pmSan Antonio

$276

Spirit Airlines

Apr 12

SAT10:22 amSan Antonio

7h 33m

1 stop

SJU6:55 pmSan Juan Luis Munoz Marin Intl

Apr 15

SJU2:59 amSan Juan Luis Munoz Marin Intl

11h 18m

1 stop

SAT1:17 pmSan Antonio

$282

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

United Airlines flights from San Antonio to Caribbean

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

United Airlines

Apr 11

SAT5:30 amSan Antonio

9h 13m

1 stop

STT3:43 pmSaint Thomas Island Cyril E King

Apr 15

STT2:10 pmSaint Thomas Island Cyril E King

9h 48m

1 stop

SAT10:58 pmSan Antonio

$240

United Airlines

May 2

SAT11:45 amSan Antonio

7h 53m

1 stop

SJU8:38 pmSan Juan Luis Munoz Marin Intl

May 7

SJU1:00 amSan Juan Luis Munoz Marin Intl

10h 39m

1 stop

SAT10:39 amSan Antonio

$304

United Airlines

Apr 25

SAT6:49 amSan Antonio

16h 01m

2 stops

SJU11:50 pmSan Juan Luis Munoz Marin Intl

Apr 28

SJU1:00 amSan Juan Luis Munoz Marin Intl

10h 34m

1 stop

SAT10:34 amSan Antonio

$322

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

Sun 5/10

5:00 am-4:15 pm

2 stops10h 15m

Saint Thomas Island Cyril E King

Thu 5/21

4:48 pm-11:59 pm

1 stop8h 11m

$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

Sat 4/11

10:22 am-8:53 am

2 stops21h 31m

San Juan Luis Munoz Marin Intl

Fri 4/17

2:59 am-1:17 pm

1 stop11h 18m

$276

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Sun 4/12

8:31 pm-4:15 pm

2 stops18h 44m

Saint Thomas Island Cyril E King

Tue 4/14

12:25 pm-11:15 pm

1 stop11h 50m

$280

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

Wed 4/15

2:59 am-1:17 pm

1 stop11h 18m

$282

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Sat 5/2

8:00 am-8:24 pm

1 stop11h 24m

San Juan Luis Munoz Marin Intl

Wed 5/6

2:45 pm-12:46 am

1 stop11h 01m

$291

Quickest round-trip

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

3:05 pm-12:46 am

1 stop10h 41m

$296

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

$330

San AntonioNassau

SAT - NAS

SATNAS

San Antonio

Tue 4/21

7:25 am-6:30 pm

2 stops10h 05m

Nassau Intl

Tue 4/28

2:10 pm-11:15 pm

2 stops10h 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

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, September 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 $298. If you don’t want to visit Caribbean in September, then you should wait until October to fly from San Antonio, when ticket prices are also cheap, with an average price of $305.

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 Tuesday when prices can be found 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.

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 $380.

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 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 $382 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 $294 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	5h 49m
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 5h 49m

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

Search flight deals

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 March 2026, there are 7 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 A321neo, representing 40.00% of all bookings. The subsequent popular models are Airbus A320neo at 30.00%, Airbus A321-100/200 at 13.33%, and Airbus A320-100/200 at 10.00%.

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 Airlines	PriceFrom $121	Free Cancellation	Rating 6.3 8,552 reviews	Search Spirit Airlines flights
Delta	PriceFrom $138	Free Cancellation	Rating 7.9 8,357 reviews	Search Delta flights
Frontier	PriceFrom $168	Free Cancellation	Rating 5.7 3,013 reviews	Search Frontier flights
United Airlines	PriceFrom $219	Free Cancellation	Rating 7.4 9,500 reviews	Search United Airlines flights
American Airlines	PriceFrom $260	Free Cancellation	Rating 7.1 11,520 reviews	Search American Airlines flights
Southwest	PriceFrom $265	Free Cancellation	Rating 8.0 4,333 reviews	Search Southwest 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.