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$138+ 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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — 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 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

Find 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 October 29, 2025.

This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:56 amSJC - SJU
2 stops19h 39mAmerican Airlines
Mon 1/124:28 pmSJU - SJC
2 stops23h 42mAmerican Airlines
Deal found 10/28$351
This Southwest deal was found by Cheapflights users on 10/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/210:05 amSJC - SJU
2 stops10h 30mSouthwest
Tue 12/98:55 amSJU - SJC
2 stops12h 25mSouthwest
Deal found 10/29$380
This American Airlines deal was found by Cheapflights users on 10/29. 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 11/153:30 pmSJC - SJU
2 stops14h 47mAmerican Airlines
Wed 11/196:25 amSJU - SJC
2 stops16h 11mAmerican Airlines
Deal found 10/29$400
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:35 amSJC - SJU
1 stop12h 45mDelta
Thu 1/152:15 pmSJU - SJC
1 stop11h 05mDelta
Deal found 10/28$425
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/47:16 pmSJC - SJU
2 stops13h 45mAmerican Airlines
Sat 12/136:54 amSJU - SJC
1 stop17h 34mAmerican Airlines
Deal found 10/28$430
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/167:15 pmSJC - SJU
2 stops11h 10mSouthwest
Thu 12/187:40 amSJU - SJC
2 stops14h 35mSouthwest
Deal found 10/28$464
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:35 amSJC - SJU
1 stop12h 45mDelta
Tue 1/132:15 pmSJU - SJC
1 stop11h 05mDelta
Deal found 10/28$475
This Southwest deal was found by Cheapflights users on 10/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:25 amSJC - SJU
2 stops12h 10mSouthwest
Wed 12/178:55 amSJU - SJC
2 stops12h 25mSouthwest
Deal found 10/29$479
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/156:30 amSJC - SJU
2 stops14h 06mUnited Airlines
Tue 11/182:05 amSJU - SJC
2 stops15h 37mUnited Airlines
Deal found 10/29$490
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/163:43 pmSJC - SJU
2 stops16h 59mDelta
Thu 12/183:32 pmSJU - SJC
1 stop11h 23mDelta
Deal found 10/28$520
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:56 amSJC - SJU
2 stops22h 01mAmerican Airlines
Fri 1/96:00 amSJU - SJC
2 stops19h 29mAmerican Airlines
Deal found 10/28$523

Cheap 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 October 29, 2025.

Round-trip from

$351
(American Airlines)

One-way from

$138
(Delta)

Popular in

June

Cheapest in

September

Average price

$555
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 ($52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 29, 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

Wed 12/3

8:25 am-12:35 am

2 stops12h 10m

San Juan Luis Munoz Marin Intl

Wed 12/17

8:55 am-5:20 pm

2 stops12h 25m

$479

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Thu 12/4

7:15 pm-10:25 am

2 stops11h 10m

San Juan Luis Munoz Marin Intl

Tue 12/16

5:45 am-2:45 pm

2 stops13h 00m

$479

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Sun 1/11

8:05 pm-2:10 pm

2 stops14h 05m

San Juan Luis Munoz Marin Intl

Sun 1/18

6:15 am-12:56 pm

1 stop10h 41m

$565

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Thu 1/1

6:35 am-11:20 pm

1 stop12h 45m

San Juan Luis Munoz Marin Intl

Wed 1/7

7:00 am-7:12 pm

2 stops16h 12m

$645

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Tue 12/2

6:59 pm-2:14 pm

2 stops15h 15m

San Juan Luis Munoz Marin Intl

Sat 12/6

3:32 pm-10:55 pm

1 stop11h 23m

$645

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Sun 1/4

10:55 pm-1:04 pm

1 stop10h 09m

San Juan Luis Munoz Marin Intl

Mon 1/12

6:15 am-4:20 pm

2 stops14h 05m

$690

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Thu 11/13

6:40 pm-12:49 pm

2 stops14h 09m

San Juan Luis Munoz Marin Intl

Mon 11/17

8:30 am-10:28 pm

2 stops17h 58m

$736

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Mon 4/6

9:10 pm-10:35 am

2 stops10h 25m

San Juan Luis Munoz Marin Intl

Sun 4/12

5:35 am-2:35 pm

2 stops12h 00m

$752

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Fri 2/6

3:00 pm-6:11 am

1 stop11h 11m

San Juan Luis Munoz Marin Intl

Mon 2/16

2:25 pm-1:41 pm

1 stop27h 16m

$782

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Wed 12/24

6:50 am-12:35 am

2 stops13h 45m

San Juan Luis Munoz Marin Intl

Tue 12/30

7:30 am-3:55 pm

2 stops12h 25m

$785

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 22 results
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2
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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 October 24, 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 $329). 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 October 29, 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 October 29, 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
8.0
Very good
4,241 reviews

Comfort

8.0

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Comfort

8.0

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
7.9
Good
7,992 reviews
Southwest
8.0
Very good
4,241 reviews

Comfort

8.0

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,999 reviews
Southwest
8.0
Very good
4,241 reviews

Comfort

8.0

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
11,032 reviews
Southwest
8.0
Very good
4,241 reviews

Comfort

8.0

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Spirit Airlines
6.3
Okay
8,114 reviews
Southwest
8.0
Very good
4,241 reviews

Comfort

8.0

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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 $479, Southwest can have you in San Juan from San Jose, California in 12h 10m. 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 $255 and $298, respectively. Spirit Airlines is 55% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from San Jose, California to San Juan one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $138. Users have also found prices from $138 and $176 on Delta and Alaska Airlines, respectively.

  • 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 $329). 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$232Average$386FlexibilityNo cancel feeOn-time65%
DeltaCheapest$255Average$491FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$298Average$576FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$383Average$557FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$414Average$655FlexibilityNo cancel feeOn-time71%

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