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$148+ Cheap flights from Puerto Rico 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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — SAN
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Puerto Rico to San Diego

Keep the following information in mind while searching for Puerto Rico to San Diego flight deals. Data was last updated September 17, 2025.

Round-trip from

$275
(United Airlines)

One-way from

$148
(United Airlines)

Popular in

February

Cheapest in

September

Average price

$460
From Puerto Rico to San Diego
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One-way flight from Puerto Rico to San Diego
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Highest demand for flights based on searches. 0% potential increase in price ($1 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 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 Puerto Rico to San Diego

Cheapest flights from Puerto Rico to San Diego
Explore the most affordable flight options available from Puerto Rico to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This United Airlines deal was found by Cheapflights users on 9/16. 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.
Mon 10/1312:15 amBQN - SAN
1 stop12h 18mUnited Airlines
Tue 10/216:15 amSAN - BQN
2 stops13h 54mUnited Airlines
Deal found 9/16$275
This Frontier deal was found by Cheapflights users on 9/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/249:06 pmSJU - SAN
2 stops19h 22mFrontier
Sun 11/97:59 pmSAN - SJU
2 stops17h 55mFrontier
Deal found 9/17$287
This Delta deal was found by Cheapflights users on 9/16. 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 10/2512:46 pmSJU - SAN
1 stop13h 28mDelta
Tue 10/286:15 amSAN - SJU
1 stop12h 44mDelta
Deal found 9/16$295
This American Airlines deal was found by Cheapflights users on 9/17. 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 10/307:00 pmSJU - SAN
1 stop19h 26mAmerican Airlines
Sat 11/89:54 pmSAN - SJU
1 stop19h 04mAmerican Airlines
Deal found 9/17$297
This American Airlines deal was found by Cheapflights users on 9/17. 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 11/17:00 pmSJU - SAN
1 stop20h 27mAmerican Airlines
Sat 11/156:30 amSAN - SJU
1 stop13h 22mAmerican Airlines
Deal found 9/17$300
This Frontier deal was found by Cheapflights users on 9/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/249:06 pmSJU - SAN
2 stops19h 22mFrontier
Mon 10/277:43 pmSAN - SJU
2 stops19h 11mFrontier
Deal found 9/16$317
This Frontier deal was found by Cheapflights users on 9/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/303:04 amSJU - SAN
2 stops12h 31mFrontier
Sun 11/97:59 pmSAN - SJU
2 stops17h 55mFrontier
Deal found 9/17$321
This Frontier deal was found by Cheapflights users on 9/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/246:22 amSJU - SAN
2 stops20h 28mFrontier
Thu 10/306:25 amSAN - SJU
2 stops16h 07mFrontier
Deal found 9/16$327
This Frontier deal was found by Cheapflights users on 9/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/179:06 pmSJU - SAN
2 stops19h 22mFrontier
Sat 10/252:24 pmSAN - SJU
2 stops20h 45mFrontier
Deal found 9/17$331
This Delta deal was found by Cheapflights users on 9/16. 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 10/252:31 pmSJU - SAN
1 stop11h 43mDelta
Fri 10/3110:30 pmSAN - SJU
1 stop10h 06mDelta
Deal found 9/16$334
This Frontier deal was found by Cheapflights users on 9/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/249:06 pmSJU - SAN
2 stops19h 22mFrontier
Fri 10/313:59 pmSAN - SJU
2 stops22h 55mFrontier
Deal found 9/16$345
This Frontier deal was found by Cheapflights users on 9/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/249:06 pmSJU - SAN
2 stops19h 22mFrontier
Sat 11/15:28 pmSAN - SJU
2 stops18h 14mFrontier
Deal found 9/17$346

Cheapflights Fare Finder

 
Customize your flight search to find flights from Puerto Rico 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 September 17, 2025.
Use the filters below to find and compare flights from Puerto Rico to San Diego that are best for you.

Fly from

Puerto Rico

Fly to

San Diego

Route

Depart

Return

Price

AguadillaSan Diego

BQN - SAN

BQNSAN

Aguadilla Borinquen

Mon 10/13

12:15 am-9:33 am

1 stop12h 18m

San Diego

Tue 10/21

6:15 am-11:09 pm

2 stops13h 54m

$275

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Fri 10/31

7:10 am-8:05 pm

2 stops15h 55m

San Diego

Sat 11/8

10:00 pm-1:17 pm

1 stop11h 17m

$385

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Wed 10/22

1:05 am-9:33 am

1 stop11h 28m

San Diego

Sat 11/1

10:00 pm-1:17 pm

1 stop12h 17m

$385

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Wed 10/29

2:46 pm-9:53 pm

1 stop10h 07m

San Diego

Sat 11/8

10:00 pm-1:17 pm

1 stop11h 17m

$385

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Thu 10/30

1:05 am-10:05 am

1 stop12h 00m

San Diego

Tue 11/4

8:00 am-9:26 pm

1 stop9h 26m

$385

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Fri 10/24

1:05 am-2:59 pm

2 stops16h 54m

San Diego

Mon 11/3

10:18 pm-12:49 pm

1 stop10h 31m

$385

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Thu 10/30

1:05 am-10:05 am

1 stop12h 00m

San Diego

Mon 11/3

10:00 pm-1:17 pm

1 stop11h 17m

$385

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Tue 10/7

1:05 am-9:33 am

1 stop11h 28m

San Diego

Tue 10/14

10:30 pm-12:00 pm

1 stop10h 30m

$385

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Tue 10/21

1:06 pm-11:47 pm

1 stop13h 41m

San Diego

Wed 10/29

6:15 am-9:59 pm

1 stop12h 44m

$420

AguadillaSan Diego

BQN - SAN

BQNSAN

Aguadilla Borinquen

Wed 2/25

1:09 am-10:01 am

1 stop12h 52m

San Diego

Mon 3/2

7:00 am-11:57 pm

1 stop12h 57m

$420

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 25 results
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2
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Best time to book a flight from Puerto Rico to San Diego

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

What is the cheapest month to book a flight from Puerto Rico to San Diego?

Currently, August is the cheapest month in which you can book a flight from Puerto Rico to San Diego (average of $286). Flying from Puerto Rico to San Diego in March is currently the most expensive (average of $366). 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 PR to SAN?

Find hourly flight availability from Puerto Rico 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 September 17, 2025.

When flying from Puerto Rico to San Diego, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 September 17, 2025.
Read through reviews of airlines operating flights from Puerto Rico 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
10,000 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

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
8.0
Very good
7,961 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

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
8,926 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

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
2,914 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

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 Puerto Rico 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 Puerto Rico?

    San Diego (SAN), located 2.6 mi from the city center, is the airport you fly into when you book flights from Puerto Rico to San Diego.

  • How long is the flight from Puerto Rico to San Diego?

    United Airlines can get you from Puerto Rico to San Diego in just under 12h 18m. Your travel time can differ by up to . The distance from Puerto Rico to San Diego is about 3236 mi.

  • What are the most popular routes from Puerto Rico to San Diego?

    The most popular route from Puerto Rico to San Diego is San Juan Luis Munoz Marin Intl - San Diego. You may also consider Aguadilla Borinquen - San Diego or Culebra - San Diego.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Puerto Rico 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 Puerto Rico to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Puerto Rico to San Diego (average of $286). Flying from Puerto Rico to San Diego in March is currently the most expensive (average of $366). 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
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
National City

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Puerto Rico to San Diego

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Puerto Rico to San Diego

Discover the top 6 airlines that operate flights from Puerto Rico 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$310Average$495FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$320Average$516FlexibilityNo cancel feeOn-time69%
DeltaCheapest$351Average$568FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$398Average$459FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$408Average$489FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$464Average$574FlexibilityNo cancel feeOn-time75%

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