Cheap flight tickets from San Diego International to San Juan Luis Munoz Marin

Compare San Diego International to San Juan Luis Munoz Marin flight deals

Find the cheapest month or even day of the year to fly to San Juan Luis Munoz Marin

Book the best San Juan Luis Munoz Marin fare with no extra fees

Flight deals from San Diego International Airport to San Juan Luis Munoz Marin Airport

Looking for a cheap last-minute deal or the best return flight from San Diego International Airport to San Juan Luis Munoz Marin Airport? If you want to travel next month, return fares start from RM1,253. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from San Diego International to San Juan Luis Munoz Marin

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

San Diego International to San Juan Luis Munoz Marin: Alternative routes

Compare routes from San Diego International to San Juan below. You may find an airport to fly into that's cheaper, faster, or easier than San Juan Luis Munoz Marin.

San Diego to San Juan: Flight information

The things to know before you go.
Cheapest flight foundRM1,253
Cheapest month to flyApril

Finding cheap flights from San Diego International to San Juan Luis Munoz Marin: Frequently asked questions

The best price we found for a return flight from San Diego International to San Juan Luis Munoz Marin is RM1,253. 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 International to San Juan Luis Munoz Marin. But we found flights with one or more stops from RM1,253.
As of January 2026, there are no flights flying from San Diego International to San Juan Luis Munoz Marin.
The cheapest month to fly from San Diego International to San Juan Luis Munoz Marin is usually April.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Diego International Airport to San Juan Luis Munoz Marin Airport on Friday, 24 April 2026.
No airlines currently offer direct flights between San Diego International Airport and San Juan Luis Munoz Marin Airport. 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 Luis Munoz Marin 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.
Currently, United offers the cheapest flight tickets to San Juan Luis Munoz Marin.

Flying from San Diego International Airport (SAN) to Luis Munoz Marin International Airport (SJU): what you need to know

  • The timezone in San Juan is UTC-4, which is three hours ahead of San Diego.

  • For a stress-free journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This will give you enough time to catch your SAN to SJU flight.

  • You can expect bigger queues in popular months such as July. Arriving up to four hours in advance for international flights and two hours for a domestic departure is a wise move.

  • If you'd like to add a stop to your trip, simply uncheck 'Direct flights only' when searching for your ticket from San Diego International Airport to Luis Munoz Marin International Airport. These are the top stopovers between SAN and SJU:

    • Hartsfield-Jackson Atlanta International Airport

    • Dallas/Fort Worth International Airport

    • George Bush Intercontinental Airport

How to find the cheapest flights from San Diego International Airport (SAN) to Luis Munoz Marin International Airport (SJU)

  • Right now, RM626 is the lowest price we've found for a one-way San Diego International Airport to Luis Munoz Marin International Airport flight. The best price for a return plane ticket is RM1,253. Keep in mind that fares can change due to availability when booking.

  • Don't leave everything to the last moment. You're more likely to find cheap tickets from SAN to SJU if you book early. Airlines often offer some excellent early bird deals.

  • If you're willing to be flexible with your trip dates, use the 'Whole month' tool. It'll find the lowest price in every month when searching for your flight from San Diego International Airport to Luis Munoz Marin International Airport.

  • Landing cheap flights from SAN to SJU is easy with Price Alerts. Simply create one of these automatic alerts and we'll let you know when there's a better deal.

  • Choose your preferred departure and arrival times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from San Diego International Airport to Luis Munoz Marin International Airport.

Handy information about San Diego International Airport (SAN)

  • SAN's address is Airport Drive.

  • 71.38% of flights taking off from San Diego International Airport land at their destination on time.

  • San Diego International Airport is around 5 kilometres from central San Diego. If you're catching a cab, ride-sharing or driving from the centre, it'll take you 10 minutes or so to get there, depending on the traffic.

  • Planning to take public transport? Expect a trip time of around 20 minutes.

  • Need a convenient hotel near SAN? If you're boarding an early flight from San Diego International Airport to Luis Munoz Marin International Airport, these stays will have you sleeping moments from your check-in counter:

Arriving at Luis Munoz Marin International Airport (SJU)

Getting from Luis Munoz Marin International Airport (SJU) to central San Juan

  • Luis Munoz Marin International Airport to the centre of San Juan has a drive time of about 10 minutes. It's approximately 8 kilometres away.

  • Getting there by public transport will take you roughly 55 minutes.

When to fly to Luis Munoz Marin International Airport (SJU)

  • July is the busiest month for flights from San Diego International Airport to Luis Munoz Marin International Airport. To steer clear of the crowds, go to San Juan in May.

  • Book your flight from San Diego International Airport to Luis Munoz Marin International Airport for September if you'd like to explore San Juan during its warmest month. Expect temperatures of between 23ºC (73ºF) and 33ºC (91ºF).

  • If you want cooler conditions, look for a cheap ticket from SAN to SJU in February. Average temperatures are between 20ºC (68ºF) and 28ºC (82ºF) then.

Explore more of Puerto Rico

  • Bayamon is just one of the many cities in Puerto Rico waiting to be explored once you've taken in the sights of San Juan. Around 10 kilometres away 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 great destination in 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.