Caribbean Islands

$100+ Cheap flights from San Antonio (SAT) to Caribbean Islands

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SJU
Mar 11 — Mar 181
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Cheap flight deals from San Antonio to Caribbean Islands

Cheapest flights from San Antonio to Caribbean Islands
Explore the most affordable flight options available from San Antonio to Caribbean Islands. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 9, 2026.

This FlightHub deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/286:00 am
SAT
-
STT
1 stop6h 31m
Spirit Airlines
Thu 3/53:36 pm
STT
-
SAT
1 stop10h 23m
Spirit Airlines
Deal found 2/5$250
This Mytrip deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1110:26 am
SAT
-
STT
2 stops26h 00m
Spirit Airlines
Tue 3/174:35 pm
STT
-
SAT
1 stop17h 52m
Spirit Airlines
Deal found 2/7$273
This Cheapflightsfares deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3110:22 am
SAT
-
SDQ
1 stop14h 16m
Spirit Airlines
Mon 4/62:52 am
SDQ
-
SAT
1 stop7h 35m
Spirit Airlines
Deal found 2/7$273
This CheapOair deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:00 am
SAT
-
STT
1 stop6h 31m
Spirit Airlines
Mon 4/204:40 pm
STT
-
SAT
1 stop17h 50m
Spirit Airlines
Deal found 2/6$276
This CheapOair deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/210:26 am
SAT
-
SJU
1 stop27h 05m
Spirit Airlines
Mon 3/167:54 pm
SJU
-
SAT
1 stop14h 33m
Spirit Airlines
Deal found 2/9$276
This Expedia deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/236:00 am
SAT
-
SJU
1 stop15h 09m
Multiple Airlines
Thu 2/263:53 am
SJU
-
SAT
1 stop11h 19m
Multiple Airlines
Deal found 2/6$277
This Kiwi.com deal was found by Cheapflights users on 2/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1710:22 am
SAT
-
SJU
1 stop7h 33m
Spirit Airlines
Tue 3/241:45 am
SJU
-
SAT
1 stop11h 42m
Spirit Airlines
Deal found 2/5$278
This Priceline deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/146:00 am
SAT
-
SJU
1 stop15h 09m
Multiple Airlines
Fri 2/203:53 am
SJU
-
SAT
1 stop11h 19m
Multiple Airlines
Deal found 2/6$279
This Mytrip deal was found by Cheapflights users on 2/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/261:22 pm
SAT
-
SJU
1 stop7h 37m
Spirit Airlines
Mon 3/307:54 pm
SJU
-
SAT
1 stop14h 33m
Spirit Airlines
Deal found 2/6$280
This Mytrip deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1010:26 am
SAT
-
SJU
2 stops13h 11m
Spirit Airlines
Tue 3/177:54 pm
SJU
-
SAT
1 stop14h 33m
Spirit Airlines
Deal found 2/8$281
This CheapOair deal was found by Cheapflights users on 2/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/191:22 pm
SAT
-
SJU
1 stop7h 37m
Spirit Airlines
Tue 3/247:54 pm
SJU
-
SAT
1 stop14h 33m
Spirit Airlines
Deal found 2/7$282
This Kiwi.com deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/225:04 pm
SAT
-
SJU
1 stop19h 18m
Multiple Airlines
Wed 2/254:06 pm
SJU
-
SAT
2 stops33h 53m
Multiple Airlines
Deal found 2/8$283

Find flight deals from San Antonio to Caribbean Islands

Keep the following information in mind while searching for San Antonio to Caribbean Islands flight deals. Data was last updated February 9, 2026.

Round-trip from

$250
(FlightHub)

One-way from

$100
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$400
From San Antonio to Caribbean Islands
One-way flight from San Antonio to Caribbean Islands
Highest demand for flights based on searches. 13% potential increase in price ($57 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Average for round-trip flights in February 2026

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated February 9, 2026.
Use the filters below to find and compare flights from San Antonio to Caribbean Islands that are best for you.

Fly from

San Antonio

Fly to

Caribbean Islands

Route

Depart

Return

Price

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Sat 2/28

6:00 am-2:31 pm

1 stop6h 31m

Saint Thomas Island Cyril E King

Thu 3/5

3:36 pm-11:59 pm

1 stop10h 23m

$250

San AntonioSanto Domingo

SAT - SDQ

SATSDQ

San Antonio

Tue 3/31

10:22 am-1:38 am

1 stop14h 16m

Santo Domingo Las Americas

Mon 4/6

2:52 am-9:27 am

1 stop7h 35m

$273

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Wed 3/11

6:00 am-1:31 pm

1 stop6h 31m

Saint Thomas Island Cyril E King

Tue 3/17

4:35 pm-9:27 am

1 stop17h 52m

$274

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Wed 4/15

6:00 am-1:31 pm

1 stop6h 31m

Saint Thomas Island Cyril E King

Mon 4/20

4:40 pm-9:30 am

1 stop17h 50m

$276

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Mon 3/2

10:26 am-3:31 pm

1 stop27h 05m

San Juan Luis Munoz Marin Intl

Mon 3/16

7:54 pm-9:27 am

1 stop14h 33m

$276

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Thu 3/26

1:22 pm-9:59 pm

1 stop7h 37m

San Juan Luis Munoz Marin Intl

Mon 3/30

7:54 pm-9:27 am

1 stop14h 33m

$280

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Tue 3/10

10:26 am-9:17 am

2 stops21h 51m

San Juan Luis Munoz Marin Intl

Tue 3/17

7:54 pm-9:27 am

1 stop14h 33m

$281

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Mon 3/9

5:00 am-1:30 pm

1 stop7h 30m

Saint Thomas Island Cyril E King

Mon 3/16

2:35 pm-10:57 pm

1 stop9h 22m

$284

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Sat 2/28

7:01 pm-3:47 pm

2 stops18h 46m

Saint Thomas Island Cyril E King

Thu 3/5

1:00 pm-10:55 pm

1 stop11h 55m

$284

San AntonioSaint Thomas Island

SAT - STT

SATSTT

San Antonio

Sun 3/22

8:08 pm-2:46 pm

2 stops17h 38m

Saint Thomas Island Cyril E King

Thu 3/26

5:25 pm-8:23 am

2 stops15h 58m

$284

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/5

Showing 1-10 of 60 results
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Best time to book a flight from San Antonio to Caribbean Islands

Have a flexible travel schedule? Discover the best time to fly to Caribbean Islands from San Antonio with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to Caribbean Islands

What is the cheapest month to book a flight from San Antonio to Caribbean Islands?

Currently, January is the cheapest month in which you can book a flight from San Antonio to Caribbean Islands (average of $87). Flying from San Antonio to Caribbean Islands in December is currently the most expensive (average of $180). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Caribbean Islands

Get insights into the airlines that provide service to Caribbean Islands. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Caribbean Islands. Reviews last updated February 9, 2026.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from San Antonio to Caribbean Islands to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Caribbean Islands. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly from for flights from San Antonio to Caribbean Islands?

    If you book a flight to Caribbean Islands from San Antonio, you will be flying from San Antonio, which is the city’s only airport. San Antonio (SAT) is located 7.6 mi from the center of San Antonio.

  • How long is the flight from San Antonio to Caribbean Islands?

    A quick flight from San Antonio to Caribbean Islands can take about 6h 31m. Spirit Airlines provides one of the quickest options available for as low as $250. Airlines will cover a distance of 2241 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from San Antonio to Caribbean Islands one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $75. Spirit Airlines flights start at $87 while deals on Delta start at $122 one-way.

  • What are the most popular routes from San Antonio to Caribbean Islands?

  • What are the cheapest flights from San Antonio to Caribbean Islands?

    While on average a flight from San Antonio to Caribbean Islands is generally $346, our data shows the cheapest flight currently is $176. When looking at the most popular route, (San Antonio - San Juan Luis Munoz Marin Intl), you can expect to pay $216 for that flight.

  • Can I find deals for flights from San Antonio to Caribbean Islands that include hotel bookings?

    Yes. In addition to deals on San Antonio to Caribbean Islands flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Antonio to Caribbean Islands?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Caribbean Islands.

  • Can I find deals for business class flights from San Antonio to Caribbean Islands?

    Yes. Cheapflights offers flight deals from San Antonio to Caribbean Islands by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Antonio to Caribbean Islands?

    Currently, January is the cheapest month in which you can book a flight from San Antonio to Caribbean Islands (average of $87). Flying from San Antonio to Caribbean Islands in December is currently the most expensive (average of $180). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Antonio to Caribbean Islands

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from San Antonio to Caribbean Islands

Discover the top 6 airlines that operate flights from San Antonio to Caribbean Islands. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$130Average$359FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$131Average$355FlexibilityNo cancel feeOn-time65%
DeltaCheapest$163Average$531FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$225Average$640FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$260Average$615FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$265Average$703FlexibilityNo cancel feeOn-time63%

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