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$90+ Cheap flights from San Antonio (SAT) to San Juan

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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SJU
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from San Antonio to San Juan are usually found in September or April, booked 47 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from San Antonio to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$172
(Cheapflightsfares)

One-way from

$91
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$317
From San Antonio to San Juan
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One-way flight from San Antonio to San Juan
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Highest demand for flights based on searches. 18% potential increase in price ($95 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from San Antonio to San Juan

Cheapest flights from San Antonio to San Juan
Explore the most affordable flight options available from San Antonio to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/294:09 pmSAT - SJU
Nonstop4h 26mSpirit Airlines
Fri 10/310:42 amSJU - SAT
Nonstop5h 32mSpirit Airlines
Deal found 9/9$172
This Priceline deal was found by Cheapflights users on 9/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:20 amSAT - SJU
Nonstop4h 40mSpirit Airlines
Mon 11/101:55 pmSJU - SAT
Nonstop4h 48mSpirit Airlines
Deal found 9/9$177
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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.
Fri 9/2612:45 pmSAT - SJU
1 stop11h 09mSpirit Airlines
Mon 9/2910:42 amSJU - SAT
Nonstop5h 32mSpirit Airlines
Deal found 9/10$180
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:20 amSAT - SJU
Nonstop4h 40mSpirit Airlines
Mon 12/81:55 pmSJU - SAT
Nonstop4h 48mSpirit Airlines
Deal found 9/9$184
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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.
Mon 10/131:01 pmSAT - SJU
Nonstop4h 47mSpirit Airlines
Fri 10/178:00 amSJU - SAT
Nonstop5h 06mSpirit Airlines
Deal found 9/10$190
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/31:01 pmSAT - SJU
Nonstop4h 47mSpirit Airlines
Fri 12/51:55 pmSJU - SAT
Nonstop4h 48mSpirit Airlines
Deal found 9/9$192
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:01 pmSAT - SJU
Nonstop4h 47mSpirit Airlines
Fri 12/51:55 pmSJU - SAT
Nonstop4h 48mSpirit Airlines
Deal found 9/9$193
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/31:01 pmSAT - SJU
Nonstop4h 47mSpirit Airlines
Mon 12/81:55 pmSJU - SAT
Nonstop4h 48mSpirit Airlines
Deal found 9/9$194
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:01 pmSAT - SJU
Nonstop4h 47mSpirit Airlines
Mon 12/81:55 pmSJU - SAT
Nonstop4h 48mSpirit Airlines
Deal found 9/9$195
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Mon 9/224:09 pmSAT - SJU
Nonstop4h 26mSpirit Airlines
Fri 9/2610:42 amSJU - SAT
Nonstop5h 32mSpirit Airlines
Deal found 9/8$196
This eDestinos deal was found by Cheapflights users on 9/9. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/34:09 pmSAT - SJU
Nonstop4h 26mSpirit Airlines
Mon 10/68:00 amSJU - SAT
Nonstop5h 06mSpirit Airlines
Deal found 9/9$198

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio to San Juan 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 September 11, 2025.
Use the filters below to find and compare flights from San Antonio to San Juan that are best for you.

Fly from

San Antonio

Fly to

San Juan

Route

Depart

Return

Price

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Wed 10/15

5:30 am-3:42 pm

1 stop9h 12m

San Juan Luis Munoz Marin Intl

Tue 10/21

1:05 am-11:37 am

1 stop11h 32m

$269

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Fri 9/26

12:45 pm-12:54 am

1 stop11h 09m

San Juan Luis Munoz Marin Intl

Tue 9/30

4:51 pm-1:49 pm

2 stops45h 58m

$303

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Fri 1/16

7:30 pm-6:11 am

1 stop8h 41m

San Juan Luis Munoz Marin Intl

Sat 1/24

7:45 am-3:31 pm

1 stop9h 46m

$309

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Fri 1/16

6:20 am-1:00 pm

Nonstop4h 40m

San Juan Luis Munoz Marin Intl

Sat 1/24

1:55 pm-4:43 pm

Nonstop4h 48m

$311

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Sat 11/8

12:12 pm-10:22 pm

1 stop8h 10m

San Juan Luis Munoz Marin Intl

Tue 11/11

2:05 am-1:04 pm

2 stops12h 59m

$312

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Tue 3/10

12:24 pm-8:43 pm

1 stop7h 19m

San Juan Luis Munoz Marin Intl

Wed 3/11

7:35 am-3:38 pm

1 stop9h 03m

$370

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Tue 9/23

11:45 am-8:38 pm

1 stop7h 53m

San Juan Luis Munoz Marin Intl

Mon 10/6

1:05 am-11:37 am

1 stop11h 32m

$374

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Wed 9/24

1:20 pm-11:57 pm

1 stop9h 37m

San Juan Luis Munoz Marin Intl

Sat 9/27

7:00 am-3:25 pm

1 stop9h 25m

$375

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Sat 10/25

5:30 am-3:42 pm

1 stop9h 12m

San Juan Luis Munoz Marin Intl

Fri 10/31

1:05 am-1:04 pm

2 stops12h 59m

$375

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Wed 9/24

11:45 am-8:38 pm

1 stop7h 53m

San Juan Luis Munoz Marin Intl

Tue 9/30

1:05 am-10:49 am

2 stops10h 44m

$400

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 21 results
1
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Best time to book a flight from San Antonio to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan 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 San Juan

How far ahead should I book a flight from San Antonio to San Juan?

Use this chart to determine the optimal time to book a round-trip flight from San Antonio to San Juan. Price data was last updated on August 29, 2025.

To ensure you get the cheapest price possible for a flight from San Antonio to San Juan, you should look to book at least 47 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, September is the cheapest month in which you can book a flight from San Antonio to San Juan (average of $254). Flying from San Antonio to San Juan in June is currently the most expensive (average of $339). 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.

What is the cheapest time of day to fly from SAT to SJU?

Find hourly flight availability from San Antonio to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 46% on flights from San Antonio to San Juan by exploring options for tickets at noon.

What is the cheapest day to fly from San Antonio to San Juan?

Use this chart to determine the cheapest time to fly round-trip from San Antonio to San Juan. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Antonio to San Juan flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated September 11, 2025.
Read through reviews of airlines operating flights from San Antonio to San Juan, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,023 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

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

    For a flight from San Antonio to San Juan, you will be flying from San Antonio. San Antonio (SAT) is just 7.6 mi from the center of the city. San Antonio is the only San Antonio airport and it handles 0 outbound flights to San Juan per day. 6 airlines have flights to San Juan from San Antonio on a regular basis.

  • How long is the flight from San Antonio to San Juan?

    Airlines like United Airlines fly from San Antonio to San Juan in about 9h 12m. The time it takes to get you to your destination can typically vary by up to . The distance between San Antonio and San Juan is about 2177 mi.

  • What are the cheapest airlines flying from San Antonio to San Juan round-trip?

    Flying on Frontier is currently your cheapest option to San Juan, with prices starting at $130. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and Delta, with the lowest prices starting at $156 and $236, respectively. These flights start at 68% lower than the current average price 3 months from now.

  • What are the cheapest flights from San Antonio to San Juan?

    Looking for the cheapest flight from San Antonio to San Juan? While on average our users pay $221, our data indicates the cheapest price to be $89. The most popular route (San Antonio - San Juan Luis Munoz Marin Intl), is priced around $180.

  • Where are the most common layover locations when flying from San Antonio to San Juan?

    San Antonio to San Juan flights have a layover in Orlando most of the time. San Antonio to San Juan flights stop in Miami the next most.

  • What are some popular things to do or see while on a layover in Orlando?

    Walt Disney World Resort, Universal Orlando Resort, and International Drive are currently the most popular points of interest in Orlando at the moment. Walt Disney World Resort, Universal Orlando Resort and International Drive are located about 16.2 mi, 10.2 mi, and 9.9 mi, respectively from Orlando if you are interested in checking them out. Those looking to explore during their layover in Orlando can rent a car from Orlando for about $28 per day.

  • What are some popular points of interest to see during a layover in Miami?

    Wynwood Art District, Bayfront Park, and Kaseya Center are currently the most popular points of interest in Miami at the moment. Those on a layover in Miami interested in visiting Wynwood Art District, Bayfront Park, or Kaseya Center can do so by traveling 5.5 mi, 6.4 mi, and 6.2 mi, respectively from Miami. Those looking to explore during their layover in Miami can rent a car from Miami for about $26 per day.

  • Where are the least popular layover locations for San Antonio to San Juan flights?

    Of the flights from San Antonio to San Juan that have layovers, the fewest flights stop in Houston. Atlanta sees the next fewest layovers on San Antonio to San Juan flights.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Antonio to San Juan 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 San Juan?

    Currently, September is the cheapest month in which you can book a flight from San Antonio to San Juan (average of $254). Flying from San Antonio to San Juan in June is currently the most expensive (average of $339). 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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Alternative routes for San Antonio to San Juan

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from San Antonio to San Juan

Discover the top 6 airlines that operate flights from San Antonio to San Juan. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$130Average$475FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$156Average$291FlexibilityNo cancel feeOn-time65%
DeltaCheapest$236Average$436FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$260Average$559FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$271Average$539FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$322Average$490FlexibilityNo cancel feeOn-time71%

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