San Juan

$169+ 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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — SJU
Apr 2 — Apr 91
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Cheapflights Tip: The best prices from San Diego to San Juan are usually found in September or January, booked 38 days in advance, depart on a Saturday or Tuesday and return on a Thursday

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 March 28, 2025.

Round-trip from

$368
(Expedia)

One-way from

$169
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$573
From San Diego to San Juan
One-way flight from San Diego to San Juan
Highest demand for flights based on searches. 10% potential increase in price ($59 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Average for round-trip flights in March 2025

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 March 28, 2025.

This Expedia deal was found by Cheapflights users on 3/28. 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.
Sat 5/102:28 pmSAN - SJU
1 stop11h 44mMultiple Airlines
Sat 5/178:12 pmSJU - SAN
2 stops24h 48mMultiple Airlines
Deal found 3/28$368
This Mytrip deal was found by Cheapflights users on 3/28. 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.
Sat 4/56:15 amSAN - SJU
3 stops33h 56mSpirit Airlines
Thu 4/108:45 pmSJU - SAN
2 stops30h 57mSpirit Airlines
Deal found 3/28$369
This American Airlines deal was found by Cheapflights users on 3/28. 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.
Mon 4/284:48 pmSAN - SJU
1 stop9h 12mAmerican Airlines
Tue 5/136:30 amSJU - SAN
1 stop18h 23mAmerican Airlines
Deal found 3/28$372
This Delta deal was found by Cheapflights users on 3/27. 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.
Mon 5/269:45 pmSAN - SJU
1 stop10h 55mDelta
Fri 6/132:40 pmSJU - SAN
1 stop9h 40mDelta
Deal found 3/27$374
This JetBlue deal was found by Cheapflights users on 3/27. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/298:25 pmSAN - SJU
1 stop11h 36mJetBlue
Thu 6/129:25 pmSJU - SAN
1 stop14h 40mJetBlue
Deal found 3/27$389
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Fri 11/76:30 pmSAN - SJU
2 stops14h 47mUnited Airlines
Sat 11/157:45 amSJU - SAN
1 stop9h 42mUnited Airlines
Deal found 3/27$392
This Alaska Airlines deal was found by Cheapflights users on 3/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/24:48 pmSAN - SJU
1 stop18h 39mAlaska Airlines
Mon 5/196:30 amSJU - SAN
1 stop17h 16mAlaska Airlines
Deal found 3/27$484
This Southwest deal was found by Cheapflights users on 3/27. 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.
Fri 6/1310:00 amSAN - SJU
2 stops11h 55mSouthwest
Fri 6/205:00 amSJU - SAN
1 stop10h 55mSouthwest
Deal found 3/27$538

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 March 28, 2025.
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

Sat 5/10

2:28 pm-5:12 am

1 stop11h 44m

San Juan Luis Munoz Marin Intl

Sat 5/17

8:12 pm-6:00 pm

2 stops24h 48m

$368

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Sat 4/5

6:15 am-7:11 pm

3 stops33h 56m

San Juan Luis Munoz Marin Intl

Thu 4/10

8:45 pm-12:42 am

2 stops30h 57m

$369

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Mon 4/28

4:48 pm-5:00 am

1 stop9h 12m

San Juan Luis Munoz Marin Intl

Tue 5/13

6:30 am-9:53 pm

1 stop18h 23m

$372

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Mon 5/26

9:45 pm-11:40 am

1 stop10h 55m

San Juan Luis Munoz Marin Intl

Fri 6/13

2:40 pm-9:20 pm

1 stop9h 40m

$374

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Thu 5/29

8:25 pm-11:01 am

1 stop11h 36m

San Juan Luis Munoz Marin Intl

Thu 6/12

9:25 pm-9:05 am

1 stop14h 40m

$389

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Wed 5/28

3:25 pm-5:30 am

1 stop11h 05m

San Juan Luis Munoz Marin Intl

Tue 6/10

2:05 am-9:17 am

1 stop10h 12m

$402

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Fri 5/2

4:48 pm-2:27 pm

1 stop18h 39m

San Juan Luis Munoz Marin Intl

Mon 5/19

6:30 am-8:46 pm

1 stop17h 16m

$484

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Fri 6/13

10:00 am-12:55 am

2 stops11h 55m

San Juan Luis Munoz Marin Intl

Fri 6/20

5:00 am-12:55 pm

1 stop10h 55m

$538

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Wed 4/23

6:15 am-11:39 pm

2 stops14h 24m

$169

San DiegoSan Juan

SAN - SJU

SANSJU

San Diego

Wed 4/23

6:24 am-12:09 am

1 stop14h 45m

$171

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/28

Showing 1-10 of 14 results
1
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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 March 21, 2025.

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 38 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, September is the cheapest month in which you can book a flight from San Diego to San Juan (average of $254). Flying from San Diego to San Juan in December is currently the most expensive (average of $336). 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 SAN to SJU?

Find hourly flight availability from San Diego 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 March 28, 2025.

It’s typically best to fly out from San Diego to San Juan at noon. Doing so could potentially save you 15% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from San Diego to San Juan. Price data was last updated on September 22, 2024.

Travelers seeking maximum savings on their San Diego to San Juan flight should consider departing on Saturday at noon 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.

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit San Juan when rainfall is around 2.2 in.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

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 March 28, 2025.
Get a feel of what it's like to fly with Southwest, Alaska Airlines and Delta from San Diego 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.

Overall

8.1

Food

7.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

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

Overall

8.1

Food

7.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

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

Overall

8.1

Food

7.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

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

Overall

8.1

Food

7.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

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

Overall

8.1

Food

7.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

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

Overall

8.1

Food

7.1

Boarding

8.2

Comfort

8.1

Entertainment

7.6

Crew

8.6

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 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.

  • 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 $369. Other airlines that can offer you cheap pricing are American Airlines, from $372, and Delta, from $374. These flights start at 29% 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?

    $169 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 American Airlines and United Airlines, with prices starting from $171 and $247, respectively.

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

  • 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, Dos Equis Pavilion, or Dallas World Aquarium. American Airlines Center, Dos Equis Pavilion, and Dallas World Aquarium can be visited by traveling about 15.0 mi, 18.3 mi, and 15.5 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 $58.

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

  • 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, September is the cheapest month in which you can book a flight from San Diego to San Juan (average of $254). Flying from San Diego to San Juan in December is currently the most expensive (average of $336). 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

See prices for flight routes from nearby airports that may be better suited for you.

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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$145Average$364FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$184Average$352FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$280Average$454FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$306Average$494FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$317Average$544FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$400Average$583FlexibilityNo cancel feeOn-time63%
DeltaCheapest$451Average$672FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$474Average$583FlexibilityNo cancel feeOn-time75%
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