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San Juan

$142+ Cheap flights from San Jose, CA (SJC) 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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — SJU
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheapflights Tip: The best prices from San Jose to San Juan are usually found in September or January, booked 68 days in advance, depart on a Sunday or Tuesday and return on a Tuesday

Cheap flight deals from San Jose to San Juan

Cheapest flights from San Jose to San Juan
Explore the most affordable flight options available from San Jose to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This American Airlines deal was found by Cheapflights users on 12/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:17 pmSJC - SJU
2 stops24h 10mAmerican Airlines
Thu 1/81:24 pmSJU - SJC
2 stops26h 46mAmerican Airlines
Deal found 12/10$532
This Delta deal was found by Cheapflights users on 12/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:35 amSJC - SJU
1 stop12h 45mDelta
Wed 1/147:00 amSJU - SJC
2 stops16h 12mDelta
Deal found 12/10$570
This American Airlines deal was found by Cheapflights users on 12/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:17 pmSJC - SJU
2 stops24h 05mAmerican Airlines
Thu 1/82:31 pmSJU - SJC
2 stops25h 39mAmerican Airlines
Deal found 12/10$576
This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3010:30 pmSJC - SJU
1 stop18h 30mUnited Airlines
Wed 1/142:25 pmSJU - SJC
1 stop10h 31mUnited Airlines
Deal found 12/10$640
This American Airlines deal was found by Cheapflights users on 12/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/147:16 pmSJC - SJU
2 stops10h 53mAmerican Airlines
Thu 12/181:30 amSJU - SJC
1 stop15h 41mAmerican Airlines
Deal found 12/10$647
This American Airlines deal was found by Cheapflights users on 12/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:17 pmSJC - SJU
2 stops24h 10mAmerican Airlines
Wed 1/75:51 pmSJU - SJC
2 stops21h 06mAmerican Airlines
Deal found 12/10$664
This American Airlines deal was found by Cheapflights users on 12/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:17 pmSJC - SJU
2 stops24h 05mAmerican Airlines
Wed 1/75:51 pmSJU - SJC
2 stops21h 06mAmerican Airlines
Deal found 12/10$708
This Alaska Airlines deal was found by Cheapflights users on 12/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/276:00 amSJC - SJU
1 stop19h 34mAlaska Airlines
Mon 1/123:54 pmSJU - SJC
2 stops29h 40mAlaska Airlines
Deal found 12/10$709
This American Airlines deal was found by Cheapflights users on 12/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:00 amSJC - SJU
1 stop19h 34mAmerican Airlines
Mon 1/124:49 pmSJU - SJC
2 stops24h 53mAmerican Airlines
Deal found 12/10$714
This American Airlines deal was found by Cheapflights users on 12/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/286:00 amSJC - SJU
1 stop19h 34mAmerican Airlines
Thu 1/87:12 pmSJU - SJC
2 stops22h 30mAmerican Airlines
Deal found 12/10$754

Find flight deals from San Jose to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from San Jose (SJC) 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 December 12, 2025.

Round-trip from

$275
(American Airlines)

One-way from

$142
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$628
From San Jose to San Juan
Search Deals
One-way flight from San Jose to San Juan
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from San Jose 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 December 12, 2025.
Use the filters below to find and compare flights from San Jose to San Juan that are best for you.

Fly from

San Jose

Fly to

San Juan

Route

Depart

Return

Price

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Sat 4/25

12:23 pm-4:00 am

1 stop12h 37m

San Juan Luis Munoz Marin Intl

Wed 4/29

6:59 am-8:35 pm

1 stop16h 36m

$351

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Fri 1/9

7:30 pm-11:15 am

2 stops11h 45m

San Juan Luis Munoz Marin Intl

Fri 1/16

5:35 am-2:50 pm

2 stops13h 15m

$364

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Sat 1/10

5:40 pm-12:55 pm

2 stops15h 15m

San Juan Luis Munoz Marin Intl

Sat 1/17

8:35 am-8:56 pm

2 stops16h 21m

$400

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Sun 1/11

10:45 pm-2:31 pm

1 stop11h 46m

San Juan Luis Munoz Marin Intl

Sat 1/17

6:15 am-12:56 pm

1 stop10h 41m

$430

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Sun 1/4

10:55 pm-11:56 am

1 stop9h 01m

San Juan Luis Munoz Marin Intl

Fri 1/16

6:15 am-12:56 pm

1 stop10h 41m

$430

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Thu 1/22

7:00 am-11:45 pm

2 stops12h 45m

San Juan Luis Munoz Marin Intl

Tue 2/3

2:15 pm-9:20 pm

1 stop11h 05m

$439

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Sat 1/17

7:52 pm-10:26 pm

2 stops22h 34m

San Juan Luis Munoz Marin Intl

Wed 1/21

7:07 am-9:29 pm

1 stop18h 22m

$457

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Mon 3/2

6:00 am-11:32 pm

1 stop13h 32m

San Juan Luis Munoz Marin Intl

Thu 3/5

7:30 am-9:29 pm

1 stop17h 59m

$483

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Sat 6/6

6:00 am-4:15 am

1 stop19h 15m

San Juan Luis Munoz Marin Intl

Thu 6/18

2:10 am-11:39 am

1 stop12h 29m

$483

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Tue 2/3

11:00 am-3:00 pm

2 stops24h 00m

San Juan Luis Munoz Marin Intl

Mon 2/9

6:00 am-9:48 am

2 stops31h 48m

$501

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

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

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

How far ahead should I book a flight from San Jose, California to San Juan?

Use this chart to determine the optimal time to book a round-trip flight from San Jose to San Juan. Price data was last updated on December 5, 2025.

The best time to book flights from San Jose, California to San Juan is 68 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Jose, California to San Juan?

Currently, December is the cheapest month in which you can book a flight from San Jose, California to San Juan (average of $169). Flying from San Jose, California to San Juan in October is currently the most expensive (average of $315). 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 SJC to SJU?

Find hourly flight availability from San Jose 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 December 12, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 18% on flights from San Jose, California to San Juan by exploring options for tickets at noon.

What is the cheapest day to fly from San Jose, California to San Juan?

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

Travelers seeking maximum savings on their San Jose, California to San Juan flight should consider departing on Thursday afternoons when fares are most often at their lowest. Friday mornings 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 December 12, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from San Jose to San Juan by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,253 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
7.9
Good
4,253 reviews
Southwest
7.9
Good
4,253 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,008 reviews
Southwest
7.9
Good
4,253 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,095 reviews
Southwest
7.9
Good
4,253 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,050 reviews
Southwest
7.9
Good
4,253 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Spirit Airlines
6.3
Okay
8,179 reviews
Southwest
7.9
Good
4,253 reviews

Food

7.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Overall

7.9

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

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

    Most people fly from San Jose (SJC) if they book a flight from San Jose to San Juan. On average, San Jose has 0 outbound flights to San Juan per day from 5 airlines. San Jose is conveniently located just 2.9 mi from San Jose’s city center.

  • How long is the flight from San Jose, California to San Juan?

    For as low as $364, Alaska Airlines can have you in San Juan from San Jose, California in 11h 45m. There are 3597 mi between San Jose, California and San Juan. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from San Jose, California to San Juan round-trip?

    Currently priced at $232, Spirit Airlines will fly you from San Jose, California to San Juan and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and United Airlines - these airlines can fly you to your destination from $238 and $298, respectively. Spirit Airlines is 54% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

  • How can I find direct flights from San Jose 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 Jose to San Juan.

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

    Yes. Cheapflights offers flight deals from San Jose 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 Jose, California to San Juan?

    Currently, December is the cheapest month in which you can book a flight from San Jose, California to San Juan (average of $169). Flying from San Jose, California to San Juan in October is currently the most expensive (average of $315). 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 5 airlines flying from San Jose to San Juan

Discover the top 5 airlines that operate flights from San Jose 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$232Average$361FlexibilityNo cancel feeOn-time65%
DeltaCheapest$255Average$472FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$298Average$558FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$383Average$555FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$414Average$671FlexibilityNo cancel feeOn-time71%

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