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San Juan

$122+ Cheap flights from San Diego (SAN) 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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SJU
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
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Cheap flight deals from San Diego to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) 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 January 15, 2026.

Round-trip from

$295
(Kiwi.com)

One-way from

$122
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$448
From San Diego to San Juan
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One-way flight from San Diego to San Juan
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Highest demand for flights based on searches. 4% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from San Diego to San Juan

Cheapest flights from San Diego to San Juan
Explore the most affordable flight options available from San Diego to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/14. 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.
Wed 2/119:45 am
SAN
-
SJU
1 stop21h 52m
Multiple Airlines
Thu 2/197:44 pm
SJU
-
SAN
1 stop17h 06m
Multiple Airlines
Deal found 1/14$295
This Kiwi.com deal was found by Cheapflights users on 1/13. 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.
Sun 2/156:25 am
SAN
-
SJU
2 stops27h 57m
Multiple Airlines
Thu 2/197:44 pm
SJU
-
SAN
1 stop17h 06m
Multiple Airlines
Deal found 1/13$297
This Kiwi.com deal was found by Cheapflights users on 1/14. 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 2/279:45 am
SAN
-
SJU
1 stop21h 52m
Multiple Airlines
Thu 3/57:09 pm
SJU
-
SAN
2 stops33h 00m
Multiple Airlines
Deal found 1/14$301
This Kiwi.com deal was found by Cheapflights users on 1/14. 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.
Tue 2/107:11 am
SAN
-
SJU
2 stops25h 16m
Multiple Airlines
Fri 2/207:44 pm
SJU
-
SAN
1 stop18h 42m
Multiple Airlines
Deal found 1/14$305
This Kiwi.com deal was found by Cheapflights users on 1/14. 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.
Wed 2/259:45 am
SAN
-
SJU
1 stop21h 52m
Multiple Airlines
Fri 2/277:44 pm
SJU
-
SAN
2 stops19h 44m
Multiple Airlines
Deal found 1/14$308
This Kiwi.com deal was found by Cheapflights users on 1/14. 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 2/236:25 am
SAN
-
SJU
2 stops28h 41m
Multiple Airlines
Fri 2/277:44 pm
SJU
-
SAN
1 stop18h 42m
Multiple Airlines
Deal found 1/14$309
This Kiwi.com deal was found by Cheapflights users on 1/13. 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.
Sat 2/2111:21 am
SAN
-
SJU
1 stop20h 16m
Multiple Airlines
Sat 2/288:53 pm
SJU
-
SAN
2 stops41h 52m
Multiple Airlines
Deal found 1/13$311
This Kiwi.com deal was found by Cheapflights users on 1/14. 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.
Wed 2/119:45 am
SAN
-
SJU
1 stop21h 52m
Multiple Airlines
Wed 2/185:25 pm
SJU
-
SAN
2 stops21h 49m
Multiple Airlines
Deal found 1/14$312
This Delta deal was found by Cheapflights users on 1/13. 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 10/247:00 am
SAN
-
SJU
1 stop13h 56m
Delta
Sat 10/312:31 pm
SJU
-
SAN
2 stops12h 16m
Delta
Deal found 1/13$316
This American Airlines deal was found by Cheapflights users on 1/14. 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 10/176:45 pm
SAN
-
SJU
1 stop16h 13m
American Airlines
Sat 10/248:35 am
SJU
-
SAN
1 stop12h 50m
American Airlines
Deal found 1/14$317

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego 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 January 15, 2026.
Use the filters below to find and compare flights from San Diego to San Juan that are best for you.

Fly from

San Diego

Fly to

San Juan

Route

Depart

Return

Price

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Fri 2/13

6:25 am-1:59 pm

2 stops51h 34m

San Juan Luis Munoz Marin Intl

Fri 2/20

7:44 pm-10:26 am

1 stop18h 42m

$303

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Tue 4/14

11:02 am-10:54 pm

1 stop8h 52m

San Juan Luis Munoz Marin Intl

Thu 4/23

1:50 pm-10:49 pm

1 stop11h 59m

$316

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Wed 4/15

6:15 am-8:38 pm

1 stop11h 23m

San Juan Luis Munoz Marin Intl

Wed 4/22

7:20 am-3:15 pm

1 stop10h 55m

$316

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Sun 4/12

10:10 pm-12:50 pm

1 stop11h 40m

San Juan Luis Munoz Marin Intl

Wed 4/22

12:50 pm-11:10 pm

1 stop13h 20m

$316

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Sat 3/21

5:50 pm-5:11 am

1 stop8h 21m

San Juan Luis Munoz Marin Intl

Wed 3/25

6:40 am-7:48 pm

2 stops16h 08m

$316

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Mon 3/23

9:00 pm-1:38 pm

1 stop13h 38m

San Juan Luis Munoz Marin Intl

Tue 4/7

7:00 am-6:55 pm

1 stop14h 55m

$329

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Thu 2/19

6:20 am-11:31 pm

1 stop13h 11m

San Juan Luis Munoz Marin Intl

Wed 2/25

7:33 am-3:49 pm

1 stop12h 16m

$354

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Mon 3/9

7:30 pm-9:20 am

2 stops10h 50m

San Juan Luis Munoz Marin Intl

Thu 3/12

5:00 am-6:45 pm

1 stop16h 45m

$367

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Thu 2/26

12:49 pm-3:51 am

1 stop11h 02m

San Juan Luis Munoz Marin Intl

Thu 3/5

10:55 am-8:00 pm

1 stop13h 05m

$376

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Mon 3/9

12:40 pm-2:55 am

1 stop11h 15m

San Juan Luis Munoz Marin Intl

Wed 3/11

10:59 pm-9:34 am

1 stop13h 35m

$376

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

Showing 1-10 of 22 results
1
2
3

Best time to book a flight from San Diego to San Juan

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

How far ahead should I book a flight from San Diego to San Juan?

Use this chart to determine the optimal time to book a round-trip flight from San Diego to San Juan. Price data was last updated on January 9, 2026.

The price you pay for your flight from San Diego to San Juan may vary depending on when you book. For the best chance of a lower fare, look to book 45 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 Diego to San Juan?

Currently, April is the cheapest month in which you can book a flight from San Diego to San Juan (average of $145). Flying from San Diego to San Juan in July is currently the most expensive (average of $365). 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.

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 January 15, 2026.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta from San Diego to San Juan have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,721 reviews

Food

7.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,721 reviews
Alaska Airlines
8.0
Very good
11,721 reviews

Food

7.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,258 reviews
Alaska Airlines
8.0
Very good
11,721 reviews

Food

7.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,051 reviews
Alaska Airlines
8.0
Very good
11,721 reviews

Food

7.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,164 reviews
Alaska Airlines
8.0
Very good
11,721 reviews

Food

7.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.2
Good
11,136 reviews
Alaska Airlines
8.0
Very good
11,721 reviews

Food

7.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

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

    San Diego (SAN) is the airport you will fly out of if you book a flight from San Diego to San Juan. You should not have trouble finding flights to San Juan from San Diego; the airport handles an average of 0 outbound flights to San Juan per day. You should also have plenty of airline options to choose from since 8 airlines have flights from the San Diego airport to San Juan. It is only a 2.6 mi journey to San Diego (SAN) from San Diego’s city center.

  • How long is the flight from San Diego to San Juan?

    There are many flights that can get you from San Diego to San Juan in 8h 52m. Fly via Delta or United Airlines to get the fastest option. There are 3304 mi between San Diego and San Juan. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Cheapflights users have booked flights from San Diego to San Juan round-trip from $176. Other airlines that can offer you cheap pricing are Frontier, from $215, and Spirit Airlines, from $260. These flights start at 66% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from San Diego to San Juan one-way?

    $89 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on United Airlines and American Airlines, with prices starting from $148 and $170, respectively.

  • Where are the most common layover locations when flying from San Diego to San Juan?

    The most popular layover on flights from San Diego to San Juan is Dallas.

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

    If you're on a layover in Dallas and looking for things to do, consider visiting American Airlines Center, Dallas World Aquarium, or Reunion Tower. American Airlines Center, Dallas World Aquarium, and Reunion Tower can be visited by traveling about 15.0 mi, 15.5 mi, and 15.6 mi respectively from Dallas/Fort Worth. Those on a layover in Dallas in need of a rental car can book one at Dallas/Fort Worth for about $50.

  • Where are the least popular layover locations for San Diego to San Juan flights?

    The least popular layover on flights from San Diego to San Juan is Miami.

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

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

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

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

    Yes. Cheapflights offers flight deals from San Diego 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 Diego to San Juan?

    Currently, April is the cheapest month in which you can book a flight from San Diego to San Juan (average of $145). Flying from San Diego to San Juan in July is currently the most expensive (average of $365). 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 Diego to San Juan

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Top 8 airlines flying from San Diego to San Juan

Discover the top 8 airlines that operate flights from San Diego 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 January 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$176Average$541FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$215Average$453FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$260Average$366FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$295Average$470FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$306Average$472FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$324Average$525FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$382Average$589FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$475Average$585FlexibilityNo cancel feeOn-time75%

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