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$132+ Cheap flights from San Juan to San Diego (SAN)

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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — SAN
Jan 20 — Jan 271
Tue 1/20
Tue 1/27
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan to San Diego are usually found in October or September, booked 17 days in advance, depart on a Thursday or Tuesday and return on a Saturday

Cheap flight deals from San Juan to San Diego

Cheapest flights from San Juan to San Diego
Explore the most affordable flight options available from San Juan to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 21, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/20. 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 12/248:40 amSJU - SAN
2 stops19h 19mFrontier
Thu 1/86:25 amSAN - SJU
1 stop20h 09mFrontier
Deal found 12/20$375
This Kiwi.com deal was found by Cheapflights users on 12/20. 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 12/248:40 amSJU - SAN
2 stops19h 19mFrontier
Fri 1/96:25 amSAN - SJU
1 stop20h 09mFrontier
Deal found 12/20$400
This Kiwi.com deal was found by Cheapflights users on 12/19. 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 12/308:47 pmSJU - SAN
2 stops53h 18mFrontier
Mon 1/126:25 amSAN - SJU
1 stop20h 09mFrontier
Deal found 12/19$419
This Kiwi.com deal was found by Cheapflights users on 12/19. 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 12/319:49 amSJU - SAN
2 stops37h 26mFrontier
Mon 1/126:25 amSAN - SJU
1 stop20h 09mFrontier
Deal found 12/19$429
This Kiwi.com deal was found by Cheapflights users on 12/19. 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 12/308:47 pmSJU - SAN
2 stops53h 18mFrontier
Thu 1/86:25 amSAN - SJU
1 stop20h 09mFrontier
Deal found 12/19$430
This Kiwi.com deal was found by Cheapflights users on 12/19. 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 12/228:40 amSJU - SAN
2 stops19h 19mFrontier
Thu 1/86:25 amSAN - SJU
1 stop20h 09mFrontier
Deal found 12/19$431
This Kiwi.com deal was found by Cheapflights users on 12/19. 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 12/234:10 amSJU - SAN
2 stops36h 01mMultiple Airlines
Thu 1/86:25 amSAN - SJU
1 stop20h 09mMultiple Airlines
Deal found 12/19$441
This Kiwi.com deal was found by Cheapflights users on 12/19. 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 12/228:40 amSJU - SAN
2 stops19h 19mFrontier
Fri 1/96:25 amSAN - SJU
1 stop20h 09mFrontier
Deal found 12/19$456
This Kiwi.com deal was found by Cheapflights users on 12/20. 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 12/224:10 amSJU - SAN
2 stops36h 01mMultiple Airlines
Thu 1/86:25 amSAN - SJU
1 stop20h 09mMultiple Airlines
Deal found 12/20$458
This Kiwi.com deal was found by Cheapflights users on 12/19. 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 12/234:10 amSJU - SAN
2 stops36h 01mMultiple Airlines
Fri 1/96:25 amSAN - SJU
1 stop20h 09mMultiple Airlines
Deal found 12/19$466
This Kiwi.com deal was found by Cheapflights users on 12/20. 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 12/271:22 pmSJU - SAN
2 stops26h 49mMultiple Airlines
Thu 1/86:25 amSAN - SJU
1 stop20h 09mMultiple Airlines
Deal found 12/20$475

Find flight deals from San Juan to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) to San Diego (SAN). 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 21, 2025.

Round-trip from

$248
(Kiwi.com)

One-way from

$132
(Kiwi.com)

Popular in

April

Cheapest in

October

Average price

$500
From San Juan to San Diego
Search Deals
One-way flight from San Juan to San Diego
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($5 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 Juan to San Diego 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 21, 2025.
Use the filters below to find and compare flights from San Juan to San Diego that are best for you.

Fly from

San Juan

Fly to

San Diego

Route

Depart

Return

Price

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Fri 2/20

7:44 pm-10:26 am

1 stop18h 42m

San Diego

Mon 2/23

9:50 am-6:58 pm

2 stops29h 08m

$258

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Wed 2/18

3:55 pm-10:48 pm

1 stop10h 53m

San Diego

Tue 2/24

11:16 am-11:58 pm

1 stop8h 42m

$295

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Wed 3/4

8:30 am-5:29 pm

2 stops12h 59m

San Diego

Sun 3/8

10:15 pm-12:17 pm

1 stop11h 02m

$295

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Wed 2/18

3:55 pm-10:48 pm

1 stop10h 53m

San Diego

Sat 2/21

11:23 am-11:58 pm

1 stop8h 35m

$295

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Fri 3/6

2:05 am-10:20 am

1 stop12h 15m

San Diego

Mon 3/9

10:30 pm-11:49 am

1 stop10h 19m

$330

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Fri 1/16

2:15 pm-12:05 am

1 stop13h 50m

San Diego

Fri 1/23

6:30 am-11:45 pm

1 stop13h 15m

$360

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Wed 2/18

5:40 am-1:35 pm

2 stops11h 55m

San Diego

Mon 2/23

7:20 pm-11:20 am

2 stops12h 00m

$367

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Thu 2/19

4:03 pm-11:59 pm

1 stop11h 56m

San Diego

Tue 2/24

9:15 am-11:32 pm

1 stop10h 17m

$377

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Thu 2/5

2:05 am-4:36 pm

2 stops18h 31m

San Diego

Tue 2/10

8:00 am-9:26 pm

1 stop9h 26m

$385

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Wed 2/18

5:40 am-1:35 pm

2 stops11h 55m

San Diego

Wed 2/25

6:50 pm-9:55 am

2 stops11h 05m

$389

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/19

Showing 1-10 of 23 results
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2
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Best time to book a flight from San Juan to San Diego

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

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

Use this chart to determine the optimal time to book a round-trip flight from San Juan to San Diego. Price data was last updated on December 12, 2025.

Booking 17 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Juan to San Diego. 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 Juan to San Diego?

Currently, August is the cheapest month in which you can book a flight from San Juan to San Diego (average of $220). Flying from San Juan to San Diego in April is currently the most expensive (average of $413). 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 SJU to SAN?

Find hourly flight availability from San Juan to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 21, 2025.

It’s typically best to fly out from San Juan to San Diego at noon. Doing so could potentially save you 32% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from San Juan to San Diego?

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

Travelers seeking maximum savings on their San Juan to San Diego flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 Diego. Reviews last updated December 21, 2025.
Read through reviews of airlines operating flights from San Juan to San Diego, such as Alaska Airlines, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,491 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,491 reviews
Alaska Airlines
8.0
Very good
11,491 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
7.9
Good
8,018 reviews
Alaska Airlines
8.0
Very good
11,491 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
9,097 reviews
Alaska Airlines
8.0
Very good
11,491 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
11,050 reviews
Alaska Airlines
8.0
Very good
11,491 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
JetBlue
7.2
Good
2,896 reviews
Alaska Airlines
8.0
Very good
11,491 reviews

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

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

    Located just 2.6 mi from the city center, San Diego is the airport most travelers will use when flying to San Diego from San Juan. Booking flights from San Juan to San Diego (SAN) should be relatively easy as there are 0 daily inbound flights from San Juan from 6 different airlines.

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

    For as low as $295, Delta can have you in San Diego from San Juan in 10h 53m. The distance between San Juan and San Diego is about 3304 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Currently priced at $295, American Airlines will fly you from San Juan to San Diego and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and JetBlue - these airlines can fly you to your destination from $295 and $327, respectively. American Airlines is currently priced 39% below the average price you’ll pay for this route.

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

    $96 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 Frontier and JetBlue, with prices starting from $144 and $146, respectively.

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

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

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Juan to San Diego.

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

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

    Currently, August is the cheapest month in which you can book a flight from San Juan to San Diego (average of $220). Flying from San Juan to San Diego in April is currently the most expensive (average of $413). 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 Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
Coronado
National City
La Mesa
Poway
Julian
Lemon Grove

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Top 6 airlines flying from San Juan to San Diego

Discover the top 6 airlines that operate flights from San Juan to San Diego. 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 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$295Average$489FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$327Average$473FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$341Average$484FlexibilityNo cancel feeOn-time69%
DeltaCheapest$351Average$537FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$377Average$481FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$408Average$479FlexibilityNo cancel feeOn-time63%

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