$171+ 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 5/22. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from San Diego to San Juan with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 April 17, 2025.
Round-trip from | $375 (FlightHub) |
|---|---|
One-way from | $171 (American Airlines) |
Popular in | December |
Cheapest in | September |
Average price | $474 |
Find flight deals from San Diego to San Juan
Cheapest flights from San Diego to San JuanExplore 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 April 17, 2025.
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 April 17, 2025.
This FlightHub deal was found by Cheapflights users on 4/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 4/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Trip.com deal was found by Cheapflights users on 4/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This JetBlue deal was found by Cheapflights users on 4/17. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This CheapOair deal was found by Cheapflights users on 4/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 4/17. 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.
This United Airlines deal was found by Cheapflights users on 4/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Alaska Airlines deal was found by Cheapflights users on 4/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 4/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
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 April 17, 2025.
Use the filters below to find and compare flights from San Diego to San Juan that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Wed 5/14
8:48 pm-11:31 am
2 stops11h 43m
San Juan Luis Munoz Marin Intl
Wed 5/21
1:33 am-4:45 pm
2 stops18h 12m
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Sat 5/10
6:15 am-10:49 pm
1 stop13h 34m
San Juan Luis Munoz Marin Intl
Sat 5/17
12:50 pm-11:42 pm
1 stop13h 52m
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Tue 5/6
8:00 am-12:53 pm
2 stops25h 53m
San Juan Luis Munoz Marin Intl
Sat 5/10
12:05 am-11:58 pm
2 stops26h 53m
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Mon 9/8
9:25 pm-12:04 pm
1 stop11h 39m
San Juan Luis Munoz Marin Intl
Sat 9/13
11:30 am-7:30 pm
1 stop11h 00m
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Tue 5/20
8:48 pm-11:31 am
2 stops11h 43m
San Juan Luis Munoz Marin Intl
Sun 5/25
4:15 pm-5:03 pm
1 stop27h 48m
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Thu 5/22
6:28 am-10:30 pm
1 stop13h 02m
San Juan Luis Munoz Marin Intl
Tue 5/27
5:25 am-6:29 pm
1 stop16h 04m
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Mon 5/5
7:10 am-11:54 pm
2 stops13h 44m
San Juan Luis Munoz Marin Intl
Fri 5/9
2:55 pm-9:15 pm
1 stop9h 20m
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Mon 8/18
8:40 pm-10:50 am
2 stops11h 10m
San Juan Luis Munoz Marin Intl
Thu 8/28
11:10 am-9:35 pm
2 stops13h 25m
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Thu 7/3
10:45 pm-2:06 pm
1 stop12h 21m
San Juan Luis Munoz Marin Intl
Tue 7/8
12:59 am-5:56 pm
1 stop19h 57m
San DiegoSan Juan
SAN - SJU
SANSJU
San Diego
Thu 5/22
6:28 am-10:30 pm
1 stop13h 02m
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.
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 April 11, 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 April 17, 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 April 17, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest 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.
Boarding
Comfort
Overall
Food
Crew
Entertainment
Reviews
Cheri,Jan 2025
FAT - SEA
Boarding
Comfort
Overall
Food
Crew
Entertainment
Reviews
Cheri,Jan 2025
FAT - SEA
Boarding
Comfort
Overall
Food
Crew
Entertainment
Reviews
Cheri,Jan 2025
FAT - SEA
Boarding
Comfort
Overall
Food
Crew
Entertainment
Reviews
Cheri,Jan 2025
FAT - SEA
Boarding
Comfort
Overall
Food
Crew
Entertainment
Reviews
Cheri,Jan 2025
FAT - SEA
Boarding
Comfort
Overall
Food
Crew
Entertainment
Reviews
Cheri,Jan 2025
FAT - SEA
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.
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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 April 17, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$184 | Average$349 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$198 | Average$370 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$281 | Average$453 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$306 | Average$475 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$317 | Average$533 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$401 | Average$664 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$414 | Average$582 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$475 | Average$584 | FlexibilityNo cancel fee | On-time75% |