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$125+ Cheap flights from San Antonio (SAT) to Puerto Rico

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 6/19. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SJU
May 23 — May 301
Sat 5/23
Sat 5/30
1 adult, Economy
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Cheap flight deals from San Antonio to Puerto Rico

Cheapest flights from San Antonio to Puerto Rico
Explore the most affordable flight options available from San Antonio to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 23, 2026.

This Priceline deal was found by Cheapflights users on 4/20. 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.
Mon 6/154:22 pm
SAT
-
SJU
1 stop8h 47m
Frontier
Thu 6/183:06 am
SJU
-
SAT
1 stop13h 31m
Frontier
Deal found 4/20$276
This United Airlines deal was found by Cheapflights users on 4/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:50 am
SAT
-
SJU
1 stop7h 48m
United Airlines
Wed 9/91:00 am
SJU
-
SAT
1 stop11h 40m
United Airlines
Deal found 4/22$285
This Delta deal was found by Cheapflights users on 4/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:30 am
SAT
-
SJU
1 stop10h 01m
Delta
Fri 9/1812:58 pm
SJU
-
SAT
1 stop10h 17m
Delta
Deal found 4/22$297
This Priceline deal was found by Cheapflights users on 4/22. 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.
Fri 6/124:22 pm
SAT
-
SJU
1 stop14h 33m
Frontier
Thu 6/186:16 pm
SJU
-
SAT
1 stop22h 21m
Frontier
Deal found 4/22$321
This Kiwi.com deal was found by Cheapflights users on 4/18. 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.
Sat 5/22:12 pm
SAT
-
SJU
1 stop8h 12m
Multiple Airlines
Fri 5/86:09 pm
SJU
-
SAT
2 stops25h 50m
Multiple Airlines
Deal found 4/18$324
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
Wed 5/137:54 pm
SAT
-
SJU
2 stops27h 03m
Multiple Airlines
Sun 5/178:04 pm
SJU
-
SAT
1 stop21h 12m
Multiple Airlines
Deal found 4/22$327
This American Airlines deal was found by Cheapflights users on 4/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:11 pm
SAT
-
SJU
1 stop14h 32m
American Airlines
Sat 8/296:00 am
SJU
-
SAT
2 stops9h 53m
American Airlines
Deal found 4/21$330
This Kiwi.com deal was found by Cheapflights users on 4/22. 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 5/127:54 pm
SAT
-
SJU
2 stops20h 32m
Multiple Airlines
Sat 5/168:04 pm
SJU
-
SAT
1 stop21h 12m
Multiple Airlines
Deal found 4/22$331
This Delta deal was found by Cheapflights users on 4/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2212:15 pm
SAT
-
SJU
1 stop8h 45m
Delta
Tue 9/295:41 pm
SJU
-
SAT
1 stop7h 34m
Delta
Deal found 4/19$336
This American Airlines deal was found by Cheapflights users on 4/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/95:00 am
SAT
-
SJU
2 stops12h 10m
American Airlines
Wed 9/1612:05 pm
SJU
-
SAT
2 stops12h 54m
American Airlines
Deal found 4/19$341
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
Fri 5/157:54 pm
SAT
-
SJU
2 stops17h 07m
Multiple Airlines
Sun 5/178:04 pm
SJU
-
SAT
1 stop21h 12m
Multiple Airlines
Deal found 4/19$343
This United Airlines deal was found by Cheapflights users on 4/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1112:20 pm
SAT
-
BQN
1 stop9h 49m
United Airlines
Wed 5/1312:15 am
BQN
-
SAT
1 stop11h 19m
United Airlines
Deal found 4/18$456

Find flight deals from San Antonio to Puerto Rico

Keep the following information in mind while searching for San Antonio to Puerto Rico flight deals. Data was last updated April 23, 2026.

Round-trip from

$276
(Priceline)

One-way from

$125
(eDestinos)

Popular in

December

Cheapest in

September

Average price

$391

Good round-trip deal

$515 or less

Good one-way deal

$176 or less
From San Antonio to Puerto Rico
Search Deals
One-way flight from San Antonio to Puerto Rico
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from San Antonio to Puerto Rico.
Search Deals
Price to beat on a one-way flight from San Antonio to Puerto Rico.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio to Puerto Rico 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 April 23, 2026.
Use the filters below to find and compare flights from San Antonio to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Wed 7/22

4:25 pm-11:45 pm

1 stop6h 20m

San Juan Luis Munoz Marin Intl

Sun 7/26

9:05 pm-9:05 am

1 stop13h 00m

$336

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Tue 5/19

7:55 am-8:30 pm

1 stop11h 35m

San Juan Luis Munoz Marin Intl

Tue 5/26

2:48 pm-12:44 am

1 stop10h 56m

$401

San AntonioAguadilla

SAT - BQN

SATBQN

San Antonio

Mon 5/11

12:20 pm-11:09 pm

1 stop9h 49m

Aguadilla Borinquen

Wed 5/13

12:15 am-10:34 am

1 stop11h 19m

$456

San AntonioAguadilla

SAT - BQN

SATBQN

San Antonio

Mon 5/11

12:20 pm-11:09 pm

1 stop9h 49m

Aguadilla Borinquen

Tue 5/19

12:15 am-10:39 am

1 stop11h 24m

$457

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Tue 5/5

5:20 am-4:23 pm

1 stop10h 03m

San Juan Luis Munoz Marin Intl

Fri 5/8

5:43 pm-12:44 am

1 stop8h 01m

$466

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Thu 7/16

3:10 pm-1:20 am

2 stops9h 10m

San Juan Luis Munoz Marin Intl

Wed 7/22

6:00 am-2:40 pm

1 stop9h 40m

$530

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Sat 6/20

6:45 am-4:46 pm

1 stop9h 01m

San Juan Luis Munoz Marin Intl

Tue 6/30

2:41 pm-12:30 am

1 stop10h 49m

$531

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Mon 6/15

1:50 pm-12:05 am

2 stops9h 15m

San Juan Luis Munoz Marin Intl

Mon 6/22

10:20 pm-11:10 am

2 stops13h 50m

$537

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Thu 5/7

6:49 am-9:24 pm

2 stops13h 35m

San Juan Luis Munoz Marin Intl

Sat 5/9

1:00 am-10:34 am

1 stop10h 34m

$556

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Sun 5/3

7:35 am-3:42 pm

1 stop7h 07m

San Juan Luis Munoz Marin Intl

Thu 5/7

7:40 am-4:19 pm

1 stop9h 39m

$556

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/19

Showing 1-10 of 35 resultsSorted by cheapest first
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Best time to book a flight from San Antonio to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico 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 Puerto Rico

What is the cheapest month to book a flight from San Antonio to Puerto Rico?

Currently, October is the cheapest month in which you can book a flight from San Antonio to Puerto Rico (average of $87). Flying from San Antonio to Puerto Rico in February is currently the most expensive (average of $179). 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.

How often are flights from San Antonio to Puerto Rico delayed?

About 23% of weekly flights between San Antonio and Puerto Rico have experienced delays in the past year, with the average delay time being 128 minutes.

What is the most punctual flight time for San Antonio to Puerto Rico flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on San Antonio to Puerto Rico flights?

Over the last year, Spirit Airlines have had the lowest number of delays on this route, with just 23% of flights being delayed.

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated April 23, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from San Antonio to Puerto Rico to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,327 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,327 reviews
Southwest
8.0
Very good
4,327 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,438 reviews
Southwest
8.0
Very good
4,327 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,635 reviews
Southwest
8.0
Very good
4,327 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,659 reviews
Southwest
8.0
Very good
4,327 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Spirit Airlines
6.3
Okay
8,633 reviews
Southwest
8.0
Very good
4,327 reviews

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Puerto Rico. 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 Puerto Rico?

    Most people fly from San Antonio (SAT) if they book a flight from San Antonio to Puerto Rico. San Antonio is conveniently located just 7.6 mi from San Antonio’s city center.

  • How long is the flight from San Antonio to Puerto Rico?

    Airlines like Southwest, Delta, and United Airlines fly from San Antonio to Puerto Rico in about 6h 20m. The time it takes to get you to your destination can typically vary by up to 5h 15m. The distance between San Antonio and Puerto Rico is about 2177 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 Puerto Rico one-way?

    One-way options have recently been found by users for as low as $75 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $91 and Delta from $118 one-way.

  • What are the most popular routes from San Antonio to Puerto Rico?

    The most popular flight routes from San Antonio to Puerto Rico are San Antonio - San Juan Luis Munoz Marin Intl, San Antonio - Culebra and San Antonio - Vieques.

  • What are the cheapest flights from San Antonio to Puerto Rico?

    Looking for the cheapest flight from San Antonio to Puerto Rico? While on average our users pay $346, our data indicates the cheapest price to be $176. The most popular route (San Antonio - San Juan Luis Munoz Marin Intl), is priced around $258.

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

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

  • How can I find direct flights from San Antonio to Puerto Rico?

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

  • Can I find deals for business class flights from San Antonio to Puerto Rico?

    Yes. Cheapflights offers flight deals from San Antonio to Puerto Rico 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 Puerto Rico?

    Currently, October is the cheapest month in which you can book a flight from San Antonio to Puerto Rico (average of $87). Flying from San Antonio to Puerto Rico in February is currently the most expensive (average of $179). 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

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Top 6 airlines flying from San Antonio to Puerto Rico

Discover the top 6 airlines that operate flights from San Antonio to Puerto Rico. 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 April 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$129Average$297FlexibilityNo cancel feeOn-time65%
DeltaCheapest$138Average$351FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$168Average$359FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$219Average$417FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$260Average$511FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$275Average$480FlexibilityNo cancel feeOn-time63%

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