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$100+ 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 11/26. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — SJU
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Cheapflights Tip: The best prices from San Antonio to San Juan are usually found in September or October, booked 63 days in advance, depart on a Tuesday or Friday and return on a Wednesday

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 October 29, 2025.

Round-trip from

$183
(Spirit)

One-way from

$100
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$322
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. 19% potential increase in price ($100 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 29, 2025.

This Spirit deal was found by Cheapflights users on 10/27. 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 Spirit is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/266:25 amSAT - SJU
Nonstop4h 42mSpirit Airlines
Thu 11/276:16 pmSJU - SAT
Nonstop5h 07mSpirit Airlines
Deal found 10/27$183
This Cheapflightsfares deal was found by Cheapflights users on 10/27. 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 11/216:25 amSAT - SJU
Nonstop4h 42mSpirit Airlines
Tue 11/256:16 pmSJU - SAT
Nonstop5h 07mSpirit Airlines
Deal found 10/27$186
This Priceline deal was found by Cheapflights users on 10/27. 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 11/109:59 amSAT - SJU
Nonstop4h 42mSpirit Airlines
Fri 11/144:08 pmSJU - SAT
Nonstop5h 07mSpirit Airlines
Deal found 10/27$189
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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.
Wed 12/37:37 pmSAT - SJU
1 stop14h 55mSpirit Airlines
Wed 12/106:15 amSJU - SAT
Nonstop5h 07mSpirit Airlines
Deal found 10/28$205
This Cheapflightsfares deal was found by Cheapflights users on 10/28. 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.
Wed 11/193:23 pmSAT - SJU
Nonstop4h 42mSpirit Airlines
Thu 11/2711:55 amSJU - SAT
1 stop8h 37mSpirit Airlines
Deal found 10/28$207
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/179:59 amSAT - SJU
Nonstop4h 42mMultiple Airlines
Fri 11/2110:22 pmSJU - SAT
1 stop21h 57mMultiple Airlines
Deal found 10/28$212
This Cheapflightsfares deal was found by Cheapflights users on 10/27. 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 11/216:25 amSAT - SJU
Nonstop4h 42mSpirit Airlines
Mon 11/2411:55 amSJU - SAT
1 stop8h 37mSpirit Airlines
Deal found 10/27$214
This Orbitz deal was found by Cheapflights users on 10/28. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1211:27 amSAT - SJU
Nonstop4h 42mSpirit Airlines
Mon 12/157:15 amSJU - SAT
Nonstop5h 07mSpirit Airlines
Deal found 10/28$220

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 October 29, 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

Sat 1/17

2:00 pm-12:10 am

1 stop8h 10m

San Juan Luis Munoz Marin Intl

Wed 1/21

10:20 am-7:20 pm

1 stop11h 00m

$280

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Wed 12/17

10:27 am-5:09 pm

Nonstop4h 42m

San Juan Luis Munoz Marin Intl

Fri 12/26

6:30 am-9:37 am

Nonstop5h 07m

$284

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Fri 12/5

9:25 pm-3:55 pm

3 stops40h 30m

San Juan Luis Munoz Marin Intl

Fri 12/12

6:15 am-9:22 am

Nonstop5h 07m

$300

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Wed 11/19

11:40 am-9:26 pm

1 stop7h 46m

San Juan Luis Munoz Marin Intl

Wed 11/19

2:05 am-1:04 pm

2 stops12h 59m

$306

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Tue 3/24

12:24 pm-8:26 pm

1 stop7h 02m

San Juan Luis Munoz Marin Intl

Mon 3/30

1:05 am-11:48 am

1 stop11h 43m

$313

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Tue 3/10

12:10 pm-9:22 pm

1 stop8h 12m

San Juan Luis Munoz Marin Intl

Tue 3/10

1:05 am-10:32 am

1 stop10h 27m

$330

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Tue 2/3

11:43 am-9:26 pm

1 stop7h 43m

San Juan Luis Munoz Marin Intl

Fri 2/27

2:05 am-1:18 pm

2 stops13h 13m

$335

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Mon 2/2

11:43 am-12:36 am

2 stops10h 53m

San Juan Luis Munoz Marin Intl

Tue 2/24

2:05 am-3:38 pm

2 stops15h 33m

$335

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Sun 2/1

11:43 am-9:26 pm

1 stop7h 43m

San Juan Luis Munoz Marin Intl

Mon 2/9

2:05 am-1:19 pm

2 stops13h 14m

$335

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Mon 11/24

7:37 pm-11:44 pm

1 stop26h 07m

$114

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 16 results
1
2

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 October 24, 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 63 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 $116). Flying from San Antonio to San Juan in January is currently the most expensive (average of $236). 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 October 29, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 21% 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 Sunday afternoons when fares are most often at their lowest. Saturday evenings 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 October 29, 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
4,241 reviews

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

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
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

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
7.9
Good
7,992 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

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
8,999 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

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
11,032 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

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
8,114 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Overall

8.0

Crew

8.6

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 Southwest, Spirit Airlines, and United Airlines fly from San Antonio to San Juan in about 4h 42m. The time it takes to get you to your destination can typically vary by up to 3h 28m. The distance between San Antonio and San Juan is about 2177 mi. This flight may include one or multiple stops.

  • 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 $133. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and Delta, with the lowest prices starting at $161 and $228, respectively. These flights start at 67% 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 $275, our data indicates the cheapest price to be $97. The most popular route (San Antonio - San Juan Luis Munoz Marin Intl), is priced around $175.

  • 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 $25 per day.

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

    Kaseya Center, Bayfront Park, and Wynwood Art District are currently the most popular points of interest in Miami at the moment. Those on a layover in Miami interested in visiting Kaseya Center, Bayfront Park, or Wynwood Art District can do so by traveling 6.2 mi, 6.4 mi, and 5.5 mi, respectively from Miami. Those looking to explore during their layover in Miami can rent a car from Miami for about $21 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 $116). Flying from San Antonio to San Juan in January is currently the most expensive (average of $236). 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$133Average$574FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$161Average$292FlexibilityNo cancel feeOn-time65%
DeltaCheapest$228Average$427FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$245Average$544FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$268Average$538FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$311Average$490FlexibilityNo cancel feeOn-time71%

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