Cheap flights from San Diego to San Juan

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Flight deals from San Diego to San Juan

Looking for a cheap last-minute deal or the best return flight from San Diego to San Juan? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from San Diego to San Juan

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Diego to San Juan flights are currently cheapest in April.

Alternative San Diego to San Juan routes

Looking for the cheapest, fastest or easiest route from San Diego to San Juan? You could fly into the following airports instead.

San Diego to San Juan: Flight information

The things to know before you go.
Cheapest flight foundP14,482
Cheapest month to flyApril

Finding cheap flights from San Diego to San Juan: Frequently asked questions

There are 6 airports in San Juan: San Juan Isla Grande, San Juan Luis Munoz Marin, Roosevelt Roads, Ponce, Vieques, and Culebra.
The best price we found for a return flight from San Diego to San Juan is P14,482. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from San Diego to San Juan. But we found flights with one or more stops from P14,482.
As of March 2025, there are no flights flying from San Diego to San Juan.
The cheapest month to fly from San Diego to San Juan is usually March 2025.
If you're flying from San Diego, the cheapest airport near San Juan is San Juan Luis Munoz Marin – which is 11.3 km away from the centre of San Juan. We've found flights into this airport from P14,482.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from San Diego to San Juan on Friday, 4 April 2025.
No airlines currently offer direct flights between San Diego and San Juan. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Juan but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Juan is around 40 days in advance, so don’t leave your flight to the last minute.
In March, the average temperature is usually around 25°C. August is typically the warmest month in San Juan, when it usually averages around 29°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging 23°C. The rainiest month is September.
The cheapest airline that flies to San Juan is Spirit Airlines .

Flying from San Diego to San Juan: what you need to know

  • Planning your getaway starts with figuring out where you'll fly out of in San Diego. San Diego International Airport (SAN) is the city's main airport, so explore your options for reserving a flight from San Diego to San Juan departing from here.

  • Luis Munoz Marin International Airport (SJU) is the primary hub where you can touch down in San Juan.

  • To ensure you get on your flight from San Diego to San Juan, leave plenty of time to check in and find your gate. Arriving two hours before international departures and one hour before domestic flights is the general travel rule.

  • Travelling over a peak time such as July? Public holidays and other popular seasons can mean longer queues at check-in and security. Play it safe and arrive up to four hours ahead of an international flight and two hours before a domestic departure.

  • You can visit Puerto Rico for tourism purposes without a visa if you have a passport from United States. But before booking your cheap flight from San Diego to San Juan, make sure you have the most up-to-date information. Visa rules can change, and you may require some documentation if your trip is for work or other reasons.

Flying from San Diego

San Diego International Airport (SAN)

  • We make it simple to book a flight from San Diego to San Juan with a stopover. To see the options leaving from San Diego International Airport, uncheck 'Direct flights only.' Then, simply choose a flight offering a stop long enough to tour the city of your choice. Some popular stopovers include:

    • George Bush Intercontinental Airport (IAH)

    • Dallas/Fort Worth International Airport (DFW)

    • Hartsfield-Jackson Atlanta International Airport (ATL)

  • Located around 5 kilometres from the centre of San Diego, SAN can be reached in approximately 9 minutes by car, depending on traffic. The same journey on public transport is roughly 20 minutes.

  • In search of a handy hotel close to San Diego International Airport? If you've booked an early flight from San Diego to San Juan, these accommodation options will have you sleeping moments from your departure lounge:

Arriving in San Juan

Luis Munoz Marin International Airport (SJU)

Fernando Luis Ribas Dominicci Airport (SIG)

  • Central San Juan is about 8 kilometres from Fernando Luis Ribas Dominicci Airport (SIG). As soon as your flight from San Diego to San Juan has touched down and you've made your way through the terminal, the drive should be around 14 minutes.

  • You can expect the trip to take approximately 58 minutes on public transport.

  • After your flight from San Diego to San Juan, kick back at a hotel near SIG. These are some comfortable options that'll help you switch to relaxation mode:

How to find the cheapest flights from San Diego to San Juan

  • The cheapest price we've seen for a one-way ticket from San Diego to San Juan is P6,640. For a return flight on this route, the best price is P14,482. Depending on when you want to go and the availability, these fares can change.

  • Don't leave everything to the last moment. You're more likely to get cheap tickets from San Diego to San Juan if you book ahead. Airlines often offer some amazing early bird deals.

  • If you can be flexible with your travel dates, try using the 'Whole month' search tool. It'll find the lowest price in each month when searching for a ticket from San Diego to San Juan.

  • Getting a cheap ticket from San Diego to San Juan couldn't be easier with Price Alerts. All you need to do is create one of these automatic alerts and we'll get in touch when the price has dropped.

  • Use filters to tailor your flights from San Diego to San Juan. Simply select your ideal arrival and departure times, airlines and number of stops. Alternatively, sort your results by 'Cheapest' to find the best deals.

Best time to go to San Juan

  • May is the quietest month for flights from San Diego to San Juan, while July is the most popular. Figure out the ideal time to visit San Juan based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • Book your flight from San Diego to San Juan for September if you want to visit the city during its warmest month. You can expect temperatures in San Juan to range from 23ºC to 33ºC.

  • Look for cheap tickets from San Diego to San Juan in February if you'd rather travel during cooler conditions. Temperatures are at their lowest around then, ranging between 20ºC and 28ºC on average.

More about San Juan

  • After booking your flight from San Diego to San Juan, think about where you'll stay in this city. Make one of these accommodation options your base for exploring San Juan:

  • Every great adventure has to include a little sightseeing. Castillo San Felipe del Morro, La Garita del morro de san juan bahia and Fortaleza Street are essential stops on your San Juan itinerary.

Complete your San Juan trip with a car rental

  • We use the same magic that helped you find your cheap flight from San Diego to San Juan to track down amazing deals on car rentals. Search for your ride in seconds and compare offers in one place. Plus you'll find all the info you need to drive in San Juan, from the most popular car type to the best time to book.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.