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$138+ 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — SAN
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 July 31, 2025.

Round-trip from

$275
(American Airlines)

One-way from

$138
(United Airlines)

Popular in

February

Cheapest in

September

Average price

$496
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 ($2 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 July 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 July 31, 2025.

This American Airlines deal was found by Cheapflights users on 7/30. 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 10/85:30 amSJU - SAN
1 stop18h 51mAmerican Airlines
Tue 10/1410:45 pmSAN - SJU
1 stop10h 59mAmerican Airlines
Deal found 7/30$275
This SmartFares deal was found by Cheapflights users on 7/31. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/42:38 pmSJU - SAN
1 stop23h 25mSpirit Airlines
Sat 9/67:47 pmSAN - SJU
2 stops14h 56mSpirit Airlines
Deal found 7/31$293
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Tue 10/71:05 amSJU - SAN
1 stop11h 28mUnited Airlines
Mon 10/1310:30 pmSAN - SJU
1 stop12h 15mUnited Airlines
Deal found 7/30$304
This Southwest deal was found by Cheapflights users on 7/31. 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 9/107:20 amSJU - SAN
1 stop12h 35mSouthwest
Thu 9/1811:45 amSAN - SJU
1 stop9h 05mSouthwest
Deal found 7/31$410
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Tue 9/3012:15 amBQN - SAN
1 stop12h 18mUnited Airlines
Tue 10/216:53 amSAN - BQN
2 stops13h 16mUnited Airlines
Deal found 7/31$420
This Expedia deal was found by Cheapflights users on 7/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/15:01 amBQN - SAN
1 stop17h 28mJetBlue
Tue 10/2110:10 amSAN - BQN
1 stop13h 21mJetBlue
Deal found 7/30$453
This United Airlines deal was found by Cheapflights users on 7/30. 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 8/2710:13 amCPX - SAN
2 stops14h 09mUnited Airlines
Sat 8/3010:30 pmSAN - CPX
2 stops15h 21mUnited Airlines
Deal found 7/30$1,096

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 July 31, 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

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Wed 10/8

5:30 am-9:21 pm

1 stop18h 51m

San Diego

Tue 10/14

10:45 pm-12:44 pm

1 stop10h 59m

$275

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Thu 9/4

2:38 pm-11:03 am

1 stop23h 25m

San Diego

Sat 9/6

7:47 pm-1:43 pm

2 stops14h 56m

$293

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

Mon 10/13

10:30 pm-1:45 pm

1 stop12h 15m

$304

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Wed 9/10

7:20 am-4:55 pm

1 stop12h 35m

San Diego

Thu 9/18

11:45 am-11:50 pm

1 stop9h 05m

$410

AguadillaSan Diego

BQN - SAN

BQNSAN

Aguadilla Borinquen

Tue 9/30

12:15 am-9:33 am

1 stop12h 18m

San Diego

Tue 10/21

6:53 am-11:09 pm

2 stops13h 16m

$420

AguadillaSan Diego

BQN - SAN

BQNSAN

Aguadilla Borinquen

Wed 10/1

5:01 am-7:29 pm

1 stop17h 28m

San Diego

Tue 10/21

10:10 am-2:31 am

1 stop13h 21m

$453

CulebraSan Diego

CPX - SAN

CPXSAN

Culebra

Wed 8/27

10:13 am-9:22 pm

2 stops14h 09m

San Diego

Sat 8/30

10:30 pm-4:51 pm

2 stops15h 21m

$1,096

AguadillaSan Diego

BQN - SAN

BQNSAN

Aguadilla Borinquen

Tue 10/28

12:09 am-10:05 am

1 stop12h 56m

$138

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Fri 9/26

1:05 am-9:33 am

1 stop11h 28m

$138

San JuanSan Diego

SJU - SAN

SJUSAN

San Juan Luis Munoz Marin Intl

Tue 12/16

2:40 pm-9:42 pm

1 stop11h 02m

$140

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 17 results
1
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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 July 31, 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 July 31, 2025.
Read through reviews of airlines operating flights from Puerto Rico to San Diego, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Delta
8.0
Very good
7,981 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
United Airlines
7.4
Good
8,900 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
JetBlue
7.3
Good
2,914 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

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.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $138. American Airlines flights start at $140 while deals on Delta start at $143 one-way.

  • 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
Coronado
Poway
National City
Lemon Grove
Imperial Beach
La Mesa
Alpine

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$303Average$422FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$310Average$499FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$320Average$445FlexibilityNo cancel feeOn-time69%
DeltaCheapest$351Average$568FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$408Average$489FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$464Average$574FlexibilityNo cancel feeOn-time75%

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