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 July.

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 foundRs49,370
Cheapest month to flyJuly

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 Rs98,428. 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 Rs98,428.
As of June 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 June 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 Rs98,428.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from San Diego to San Juan on Tuesday, 4 November 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 June, the average temperature is usually around 27°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 Southwest Airlines .

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

  • Planning your holiday begins with working 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 booking a flight from San Diego to San Juan taking off from here.

  • Touch down at San Juan's major arrival point, Luis Munoz Marin International Airport (SJU).

  • San Juan's timezone is UTC-4, making San Juan three hours ahead of San Diego.

  • Leave plenty of time to catch your San Diego to San Juan flight. A good rule of thumb is to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Travelling during a peak month like July? Popular periods (like Thanksgiving, Christmas/New Year and spring break) can add an hour at check-in and security. Be extra cautious and arrive up to four hours ahead of an international flight and two hours before a domestic departure.

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

  • To pick up cheap San Diego to San Juan flights, book in advance. Airlines usually offer their most competitively priced fares when flights are first released.

  • Getting cheap plane tickets from San Diego to San Juan is easier if you're flexible with your trip dates. Use the 'Whole month' search tool to see the lowest fares across every month and land a sweet deal.

  • You don't need to check back in every day to find out if prices have dropped when you set up a Price Alert. We'll notify you as soon as a better deal comes up on cheap flights from San Diego to San Juan.

  • Tailor your travel plans using filters. Select your arrival and departure times, total journey duration and airlines. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest' San Diego to San Juan flights.

Flying from San Diego

San Diego International Airport (SAN)

  • A stopover is the ideal opportunity to take a break from travelling — and perhaps even explore another city. When browsing San Diego to San Juan flights leaving from San Diego International Airport, uncheck the 'Direct flights only' box to see where you can stop along the way. Here are some options to consider:

    • Hartsfield-Jackson Atlanta International Airport (ATL)

    • Dallas/Fort Worth International Airport (DFW)

    • George Bush Intercontinental Airport (IAH)

  • Located around 3 kilometres from the centre of San Diego, SAN can be reached in about 10 minutes by car (depending on traffic). The journey by public transport will take roughly 20 minutes.

  • After a relaxed start to your travels? Stay near San Diego International Airport. Whether you're boarding an early flight from San Diego to San Juan or just don't want to be rushed, these hotels are the answer:

  • 71.38% of flights leaving from San Diego International Airport arrive at their destination on schedule.

  • SAN is located at N Harbour Dr.

Arriving in San Juan

Luis Munoz Marin International Airport (SJU)

  • The distance from Luis Munoz Marin International Airport (SJU) to central San Juan is roughly 6 kilometres. It'll take you about 10 minutes to get to the centre driving.

  • When travelling on public transport, expect a journey time of around 55 minutes.

  • The last thing you need is a long journey to your hotel if you're getting in late on a flight from San Diego to San Juan. Reserve one of these accommodation options near SJU instead:

  • Grab a Luis Munoz Marin International Airport rental car and explore San Juan and beyond with your own set of wheels. Sixt, Ace Rent a Car and U-Save are leading providers you can book with here.

  • Reserving your vehicle from Luis Munoz Marin International Airport around two weeks in advance can help you get the best possible rate.

Fernando Luis Ribas Dominicci Airport (SIG)

  • Fernando Luis Ribas Dominicci Airport (SIG) is about 6 kilometres from the centre of San Juan. Following your flight from San Diego to San Juan, it takes approximately 15 minutes to get to the heart of the city in a ride-share or cab.

  • You can expect the trip to take approximately 1 hour on public transport.

Best time to go to San Juan

  • July is the busiest month for flights from San Diego to San Juan. To escape the crowds, go to San Juan in May.

  • When booking your San Diego to San Juan tickets, consider the kind of weather forecast you're hoping for. September is the warmest month in San Juan, with temperatures ranging from 23ºC to 33ºC.

  • February sees average temperatures of between 20ºC and 28ºC. Search for cheap flights from San Diego to San Juan around that time if you want to travel when it's cooler.

More about San Juan

  • After booking your flight from San Diego to San Juan, find a hotel that offers the right mix of comfort and location. Make one of these options your base for exploring San Juan:

  • Castillo San Felipe del Morro and La Garita del morro de san juan bahia are just the start of the top attractions to put on your San Juan travel itinerary. Continue your sightseeing adventures at Fortaleza Street.

Explore more of Puerto Rico

  • Bayamon is just one of the many cities in Puerto Rico waiting to be explored once you've seen San Juan. Around 10 kilometres to the west, popular attractions include Plazoleta Ignacio Zorrilla, La Plaza de la Bomba Puertorriqueña, Monumento a los Trovadores and Parque Palm Court.

  • If you're interested in discovering another side of Puerto Rico, head for Carolina, about 11 kilometres east of San Juan. Isla Verde Beach, Parque de Doble A Roberto Clemente Walker and Drone Zone Track are highlights.

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