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$138+ Cheap flights from San Jose (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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — 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 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

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 September 11, 2025.

Round-trip from

$275
(American Airlines)

One-way from

$138
(Delta)

Popular in

June

Cheapest in

September

Average price

$350
From San Jose to San Juan
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One-way flight from San Jose to San Juan
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Highest demand for flights based on searches. 9% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($10 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 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 September 11, 2025.

This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:10 amSJC - SJU
2 stops13h 42mAmerican Airlines
Wed 12/2410:03 pmSJU - SJC
2 stops16h 00mAmerican Airlines
Deal found 9/10$275
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/910:25 pmSJC - SJU
1 stop10h 18mDelta
Wed 12/246:30 amSJU - SJC
2 stops20h 05mDelta
Deal found 9/10$302
This Delta deal was found by Cheapflights users on 9/11. 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.
Sat 11/14:37 pmSJC - SJU
2 stops17h 19mDelta
Sat 11/87:00 amSJU - SJC
2 stops15h 48mDelta
Deal found 9/11$349
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/226:22 pmSJC - SJU
2 stops14h 38mUnited Airlines
Wed 10/297:10 amSJU - SJC
2 stops13h 28mUnited Airlines
Deal found 9/9$366
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/227:30 amSJC - SJU
2 stops13h 20mSouthwest
Wed 10/296:10 amSJU - SJC
1 stop14h 55mSouthwest
Deal found 9/9$380
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:10 amSJC - SJU
2 stops13h 42mAmerican Airlines
Wed 12/241:30 amSJU - SJC
1 stop12h 33mAmerican Airlines
Deal found 9/10$382
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2311:40 amSJC - SJU
3 stops30h 16mSpirit Airlines
Fri 9/2610:42 amSJU - SJC
2 stops27h 03mSpirit Airlines
Deal found 9/10$410
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/223:15 pmSJC - SJU
2 stops16h 51mAmerican Airlines
Wed 10/295:00 pmSJU - SJC
2 stops19h 21mAmerican Airlines
Deal found 9/9$422
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 10/16:22 pmSJC - SJU
2 stops15h 12mUnited Airlines
Thu 10/232:00 pmSJU - SJC
1 stop10h 06mUnited Airlines
Deal found 9/11$435
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/56:45 amSJC - SJU
2 stops14h 30mSouthwest
Thu 10/95:50 amSJU - SJC
1 stop13h 10mSouthwest
Deal found 9/10$447

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 September 11, 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

Tue 3/3

6:09 am-11:30 pm

2 stops13h 21m

San Juan Luis Munoz Marin Intl

Wed 3/4

4:25 pm-9:28 am

2 stops21h 03m

$351

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Wed 10/22

6:22 pm-12:00 pm

2 stops14h 38m

San Juan Luis Munoz Marin Intl

Tue 10/28

1:05 am-1:42 pm

2 stops15h 37m

$400

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Fri 2/20

10:30 pm-11:53 am

1 stop9h 23m

San Juan Luis Munoz Marin Intl

Wed 2/25

7:00 am-6:51 pm

2 stops15h 51m

$423

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Sun 10/5

6:45 am-12:15 am

2 stops14h 30m

San Juan Luis Munoz Marin Intl

Thu 10/9

5:50 am-4:00 pm

1 stop13h 10m

$447

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Tue 2/17

10:20 am-4:55 am

2 stops14h 35m

San Juan Luis Munoz Marin Intl

Wed 2/18

8:04 am-12:01 pm

2 stops31h 57m

$477

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Thu 10/23

6:22 pm-12:00 pm

2 stops14h 38m

San Juan Luis Munoz Marin Intl

Wed 10/29

1:25 pm-8:53 pm

1 stop10h 28m

$479

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Wed 12/10

6:10 am-11:52 pm

2 stops13h 42m

San Juan Luis Munoz Marin Intl

Sat 12/20

10:03 pm-10:03 am

2 stops16h 00m

$489

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Wed 2/18

12:15 pm-4:55 am

1 stop12h 40m

San Juan Luis Munoz Marin Intl

Thu 2/26

7:20 am-10:27 pm

2 stops19h 07m

$492

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Fri 2/20

6:35 am-10:30 pm

2 stops11h 55m

San Juan Luis Munoz Marin Intl

Thu 2/26

7:00 am-3:00 pm

2 stops12h 00m

$497

San JoseSan Juan

SJC - SJU

SJCSJU

San Jose

Wed 2/18

2:24 pm-4:55 am

1 stop10h 31m

San Juan Luis Munoz Marin Intl

Fri 2/27

8:04 am-8:45 pm

1 stop16h 41m

$515

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

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 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 August 29, 2025.

The price you pay for your flight from San Jose to San Juan may vary depending on when you book. For the best chance of a lower fare, look to book 68 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from San Jose to San Juan (average of $254). Flying from San Jose 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 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 September 11, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 19% on flights from San Jose to San Juan by exploring options for tickets at noon.

What is the cheapest day to fly from San Jose 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 to San Juan flight should consider departing on Wednesday evenings 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 September 11, 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
4,248 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

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
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

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
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

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
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

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
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

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
8,023 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

Crew

8.6

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 to San Juan?

    A quick flight from San Jose to San Juan can take about 9h 23m. American Airlines provides one of the quickest options available for as low as $423. San Jose and San Juan are separated by a distance of 3597 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Flying on Spirit Airlines is currently your cheapest option to San Juan, with prices starting at $232. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $255 and $328, respectively. Users have found that Spirit Airlines is 55% cheaper than the other options available 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 to San Juan?

    Currently, September is the cheapest month in which you can book a flight from San Jose to San Juan (average of $254). Flying from San Jose 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.

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$232Average$435FlexibilityNo cancel feeOn-time65%
DeltaCheapest$255Average$495FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$328Average$594FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$383Average$564FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$414Average$614FlexibilityNo cancel feeOn-time71%

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