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Luis Munoz Marin Intl

$90+ Cheap flights from San Antonio (SAT) to Luis Munoz Marin Intl (SJU)

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 Luis Munoz Marin Intl 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 Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Luis Munoz Marin Intl (SJU). 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

Good round-trip deal

$166 or less

Good one-way deal

$155 or less
From San Antonio to San Juan Luis Munoz Marin Intl
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One-way flight from San Antonio to San Juan Luis Munoz Marin Intl
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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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Price to beat on a round-trip flight from San Antonio to San Juan Luis Munoz Marin Intl.
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Price to beat on a one-way flight from San Antonio to San Juan Luis Munoz Marin Intl.
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Find flight deals from San Antonio to Luis Munoz Marin Intl

Cheapest flights from San Antonio to Luis Munoz Marin Intl
Explore the most affordable flight options available from San Antonio to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl 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 Luis Munoz Marin Intl Airport that are best for you.

Fly from

San Antonio

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

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

Tue 3/10

1:05 am-12:03 pm

1 stop11h 58m

$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

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

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Wed 2/4

6:20 am-1:00 pm

Nonstop4h 40m

$90

San AntonioSan Juan

SAT - SJU

SATSJU

San Antonio

Fri 9/26

4:09 pm-9:35 pm

Nonstop4h 26m

$92

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 19 results
1
2

Best time to book a flight from San Antonio to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl 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 Luis Munoz Marin Intl Airport

How far ahead should I book a flight from San Antonio to San Juan Luis Munoz Marin Intl Airport?

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

Booking 47 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Antonio to San Juan Luis Munoz Marin Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Antonio to San Juan Luis Munoz Marin Intl Airport?

Currently, September is the cheapest month in which you can book a flight from San Antonio to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from San Antonio to San Juan Luis Munoz Marin Intl Airport 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 Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl Airport by exploring options for tickets at noon.

What is the cheapest day to fly from San Antonio to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from San Antonio to Luis Munoz Marin Intl. Price data was last updated on September 7, 2025.

Travelers seeking maximum savings on their San Antonio to San Juan Luis Munoz Marin Intl Airport 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 Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated September 11, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from San Antonio to San Juan Luis Munoz Marin Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Boarding

8.1

Overall

8.0

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

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Boarding

8.1

Overall

8.0

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

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Boarding

8.1

Overall

8.0

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

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Boarding

8.1

Overall

8.0

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

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Boarding

8.1

Overall

8.0

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

Crew

8.6

Entertainment

7.5

Food

7.0

Comfort

8.0

Boarding

8.1

Overall

8.0

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 Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl?

    San Antonio (SAT), located 7.6 mi from the city center, is the airport you fly out of when you book flights from San Antonio to San Juan Luis Munoz Marin Intl. 6 airlines have flights from San Antonio to San Juan Luis Munoz Marin Intl on a regular basis. Booking flights from San Antonio to San Juan Luis Munoz Marin Intl should not be difficult; the airport handles an average of 0 outbound flights to San Juan Luis Munoz Marin Intl per day.

  • How long is the flight from San Antonio to San Juan Luis Munoz Marin Intl Airport?

    United Airlines can get you from San Antonio to San Juan Luis Munoz Marin Intl Airport in just under 9h 12m. Your travel time can differ by up to . Airlines will cover a distance of 2177 mi.

  • What are the cheapest airlines flying from San Antonio to San Juan Luis Munoz Marin Intl Airport round-trip?

    Currently priced at $130, Frontier will fly you from San Antonio to San Juan Luis Munoz Marin Intl Airport and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Spirit Airlines and Delta - these airlines can fly you to your destination from $156 and $236, respectively. Frontier is currently priced 68% below the average price you’ll pay for this route.

  • What are the cheapest flights from San Antonio to San Juan Luis Munoz Marin Intl Airport?

    The cheapest flight price from San Antonio to San Juan Luis Munoz Marin Intl Airport is $89. On average you can expect to pay $221. The most popular route, (San Antonio - San Juan Luis Munoz Marin Intl), can usually be booked for $180.

  • Where are the most common layover locations when flying from San Antonio to San Juan Luis Munoz Marin Intl Airport?

    Most of the time, San Antonio to San Juan Luis Munoz Marin Intl Airport flights that have layovers will stop in Orlando. Miami follows Orlando in terms of the most common layover location on San Antonio to San Juan Luis Munoz Marin Intl Airport flights.

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

    If you're on a layover in Orlando and looking for things to do, consider visiting Walt Disney World Resort, Universal Orlando Resort, or International Drive. Travelers on a layover in Orlando can visit Walt Disney World Resort, Universal Orlando Resort, and International Drive, by traveling 16.2 mi, 10.2 mi, and 9.9 mi, respectively after landing at Orlando. Travelers in need of a car in Orlando can rent one for about $28 per day.

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

    If you're on a layover in Miami and looking for things to do, consider visiting Wynwood Art District, Bayfront Park, or Kaseya Center. Wynwood Art District, Bayfront Park, and Kaseya Center can be visited by traveling about 5.5 mi, 6.4 mi, and 6.2 mi respectively from Miami. Those on a layover in Miami in need of a rental car can book one at Miami for about $26.

  • Where are the least popular layover locations for San Antonio to San Juan Luis Munoz Marin Intl Airport flights?

    Of the flights from San Antonio to San Juan Luis Munoz Marin Intl Airport that have layovers, the fewest flights stop in Houston. Atlanta is the second least popular location for layovers on flights from San Antonio to San Juan Luis Munoz Marin Intl Airport.

  • Can I find deals for flights from San Antonio to Luis Munoz Marin Intl that include hotel bookings?

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

  • How can I find direct flights from San Antonio to Luis Munoz Marin Intl?

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

  • Can I find deals for business class flights from San Antonio to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from San Antonio to Luis Munoz Marin Intl 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 Luis Munoz Marin Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from San Antonio to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from San Antonio to San Juan Luis Munoz Marin Intl Airport 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

Traveling to a place near San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Dorado
Fajardo
Rio Grande
Luquillo
Humacao

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Top 6 airlines flying from San Antonio to Luis Munoz Marin Intl

Discover the top 6 airlines that operate flights from San Antonio to Luis Munoz Marin Intl. 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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