SJU - SAN

$172 Find Cheap Flights from San Juan to San Diego

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Juan to San Diego departing on 8/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Diego

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Juan to San Diego, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Juan to San Diego, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$262
Typical prices: $573-$443
American Airlines
Wed 8/19Sun 8/23
SJU - SAN • 1 stop
Cheapest one-way
$172
Typical prices: $278-$383
Frontier
Tue 8/11
SJU - SAN • 2 stops
Top airlines
Cheapest • from $262 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San Juan and San Diego. You'll need at least 1 connection.
Insights
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Insights
Top layover airports
Cheapest • Avg $295 (round-trip)
Shortest trip • 9h 17m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 21% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 20% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to San Diego!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Juan to San Diego (SJU-SAN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Juan to San Diego that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Juan to San Diego

Wed, Aug 19 - Sun, Aug 23
American Airlines Logo
6:00 am - 10:49 pm
SJU
-
SAN
19h 49m
1 stop
American Airlines Logo
6:40 pm - 2:54 pm
SAN
-
SJU
17h 14m
1 stop
$262American Airlines
Wed, Aug 19 - Wed, Sep 2
American Airlines Logo
6:00 am - 3:26 pm
SJU
-
SAN
12h 26m
2 stops
American Airlines Logo
9:40 am - 11:59 pm
SAN
-
SJU
11h 19m
2 stops
$272American Airlines
Wed, Aug 19 - Sun, Aug 23
American Airlines Logo
6:00 am - 3:26 pm
SJU
-
SAN
12h 26m
2 stops
American Airlines Logo
10:26 pm - 12:40 pm
SAN
-
SJU
11h 14m
2 stops
$324American Airlines
Wed, Aug 19 - Wed, Sep 2
Delta Logo
2:59 pm - 11:00 pm
SJU
-
SAN
11h 01m
1 stop
Delta Logo
6:15 am - 10:29 pm
SAN
-
SJU
13h 14m
1 stop
$386Delta
Thu, Aug 27 - Wed, Sep 9
American Airlines Logo
1:38 pm - 11:59 pm
SJU
-
SAN
13h 21m
2 stops
American Airlines Logo
10:46 pm - 3:40 pm
SAN
-
SJU
13h 54m
2 stops
$391American Airlines
Wed, Jul 29 - Mon, Aug 10
American Airlines Logo
12:58 am - 8:51 am
SJU
-
SAN
10h 53m
2 stops
American Airlines Logo
10:45 pm - 4:11 pm
SAN
-
SJU
14h 26m
1 stop
$392American Airlines
Thu, Aug 13 - Mon, Aug 17
American Airlines Logo
3:44 pm - 8:12 am
SJU
-
SAN
19h 28m
1 stop
American Airlines Logo
10:20 pm - 2:51 pm
SAN
-
SJU
13h 31m
1 stop
$394American Airlines
Wed, Aug 19 - Wed, Sep 2
American Airlines Logo
6:00 am - 3:26 pm
SJU
-
SAN
12h 26m
2 stops
American Airlines Logo
10:45 pm - 2:38 pm
SAN
-
SJU
12h 53m
2 stops
$400American Airlines
Fri, Aug 21 - Fri, Aug 28
Multiple Airlines Logo
7:00 am - 11:44 am
SJU
-
SAN
31h 44m
1 stop
Multiple Airlines Logo
9:37 am - 6:26 am
SAN
-
SJU
17h 49m
2 stops
$409Multiple Airlines
Mon, Oct 26 - Wed, Oct 28
Southwest Logo
5:30 am - 12:45 pm
SJU
-
SAN
10h 15m
1 stop
Southwest Logo
7:30 pm - 9:20 am
SAN
-
SJU
10h 50m
2 stops
$410Southwest
Booking Insights

KAYAK's insights & trends for San Juan to San Diego flights

Get data-powered insights and trends into flights from San Juan to San Diego to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from San Juan Luis Munoz Marin Intl Airport to San Diego?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Juan Luis Munoz Marin Intl Airport to San Diego departing in August.

What is the cheapest month to fly from San Juan Luis Munoz Marin Intl Airport to San Diego?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Juan Luis Munoz Marin Intl Airport to San Diego, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Juan Luis Munoz Marin Intl Airport to San Diego is October, where tickets cost $386 (return) on average. On the other hand, the most expensive months are May and March, where the average cost of round-trip tickets is $543 and $533 respectively.

How far in advance should I book a flight from San Juan Luis Munoz Marin Intl Airport to San Diego?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Juan Luis Munoz Marin Intl Airport to San Diego, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Juan Luis Munoz Marin Intl Airport to San Diego, you should book around 3 weeks before departure, which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$172
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly with an average 2% increase in price.
Flight from San Juan to San Diego

When to book flights from San Juan to San Diego

Are your dates flexible? Find out the best times to travel from San Juan to San Diego based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking San Juan to San Diego flights

  • What is the cheapest flight from San Juan Luis Munoz Marin Intl Airport to San Diego?

    In the last 5 days, the lowest price for a flight from San Juan Luis Munoz Marin Intl Airport to San Diego was $172 for a one-way ticket and $262 for a round-trip.

  • Do I need a passport to fly between San Juan and San Diego?

    Yes, you'll most likely have to show a valid passport before boarding the plane in San Juan and on arrival in San Diego.

  • Which airports will I be using when flying from San Juan to San Diego?

    San Juan and San Diego are both served by 1 main airport. You will leave San Juan from San Juan Luis Munoz Marin Intl and will be arriving at San Diego.

  • Which aircraft models fly most regularly from San Juan to San Diego?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Juan to San Diego?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between San Juan and San Diego, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from San Juan to San Diego, Delta or Southwest?

    The two airlines most popular with KAYAK users for flights from San Juan to San Diego are Delta and Southwest. With an average price for the route of $537 and an overall rating of 7.9, Delta is the most popular choice. Southwest is also a great choice for the route, with an average price of $479 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from San Juan to San Diego?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Juan to San Diego.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Juan to San Diego?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego from San Juan is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Juan to San Diego?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Diego with an airline and back to San Juan with another airline. Booking your flights between San Juan and SAN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Juan to San Diego?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Diego from San Juan up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from San Juan to San Diego

 
See real verified KAYAK customer reviews for airlines flying from San Juan to San Diego. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Juan to San Diego? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4235 reviews
7.5Entertainment
8.1Boarding
8.0Comfort
7.0Food
8.6Crew
Airline reviews

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

4.0 OkayAnonymous, May 2026
MDW - LAX
Read more Southwest reviews

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

Plane was clean and comfortable. Flight attendants and gate staff were professional, friendly and efficient. Boarding and deplaning were orderly and efficient. All in all, the typical excellent Southwest experience.

Not having a five hour delay with little notice! The crew was very kind, though, and just as tired as we passengers were. The flight didn't depart until nearly 1 am...and no reason was ever given.

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

Terrible all around. Left prior review detailing massive delay/cancellation to then rebook travel. Topping on the cake was lost luggage even after travel to ultimate destination was secured on a new plane(s).

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

The seats were really comfortable. Flight crew were friendly with passengers. Overall was a great flight.

Great crew, flight on time, luggage pick up a breeze

Everything went smoothly, although the usual gripes about airline travel were still present: the boarding process is inefficient, the snack selection is limited, and so on. Since there was extra space on the flight, the gate agent rearranged many people's seats to put people on the aisles and windows, leaving the middle seats empty, as much as possible, which was pretty great.

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

WiFi didn’t work most of the time. The usb chargers would work only occasionally for 5 mins and wouldn’t charge after that. Had to keep trying repeatedly at each of the seats in the row.

The crew bent over backwards to thank us for flying and make us comfortable. The food service was quick and efficient. The Captain communicated and said goodbye and thank you as we departed. They really stood out!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Service was professional and quick. Premium economy seat was comfortable given the class

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

Crew was great! Good meals. Had room to stretch out

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

Uncomfortable plastic seats even in premium economy. No free wifi. Even paid wifi was spotty to nonexistent. Bad food. Much worse than economy on foreign carriers like Qantas.

It was so much better than expected, Ohare is not such a pleasant experience but American Airlines with the new, clean aeroplane and free Wi-Fi was outstanding and the crew so pleasant and helpful.

This was my first flight on Aer Lingus and it was great. The plane wasn't full so I could move to a seat with extra room. The food was pretty good for airline food and the staff was nice and attentive. I enjoyed the media provided during my 10 hour flight. We arrived home early and it's always good to be home!

Was put into a seat right behind the toilet that had no entertainment possible but did have plenty of leg room over noisy part of plane.

The seat when "flat" was not flat and pad was too thin to cover it.

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Flight: Started on time. Comfortable flight. Arrived on time. Crew: Very cordial and helpful. Drinks and snack was served with a smile. Overall enjoyed the trip. Regards, Hari Doss Chanchala Doss

AA was a very good experience. The employees are wonderful

To have arrived on time and not 3 hours late after having already spent $100 to change to an earlier flight, only to arrive back home close to the original flight time.

American Airlines is a miserable experience. It is predictably miserable, in the sense that every time I fly American, I brace myself for the certainty that it will be unpleasant and uncomfortable. But it is unpredictable in the sense that I never know if the flight will be on time or delayed nine hours (both happened to me this week). I never know if I will be able to sit in the seat that I selected when I purchased the ticket or if I will be told by Customer Service (!!!) that I must relocate from first class to a seat in the back of the aircraft with no explanation (both happened to me this week). Will the food be frozen and half defrosted, or scalding hot? Will the drinks be warm? Will the flight attendants be surly and mean? Will the toilets be cramped and foul? Will the seats be narrow and uncomfortable? Will there be a real electric outlet at the seat, or just an unreliable USB-2 port? Will there be enough seats in the boarding lounge or just a few? Will the boarding process be smooth and efficient, or will the gate agents mess it up and delay it needlessly for 30 or 40 minutes? Will the catering and cleaning crew be prompt or will they take an extra 30 minutes? Will the brakes on the aircraft work properly, or will the pilot delay takeoff for four hours while the ground crew attends to what can only be described as routine maintenance that should have been done the night before? I've eexperienced every one of these unpleasant things this year, 2026. The only thing I can reliably count on is that American will find a new way to make the experience of flying as miserable as they possibly can.

Wifi was spotty. Tray table was very dirty when I sat down.

JetBlue worker, Blythe, was so amazing at the DCA counter. If it wasn’t for her, I’m not sure we would’ve made it through. Please thank her!

They lost my luggage and refuse to help. Terrible airline. I've never experienced worse customer service in my life. Pretty much just told me too bad that I lost all my luggage, not caring that I am stuck in Europe for 2 weeks with absolutely nothing.

You should have had Wifi to make it much enjoyable.

The flight out was delayed from 3:40pm to 5pm and again to 8pm. We boarded after 5pm, had to disembark because they could not get the Engine started, then we switched gates and got a new plane and did not board until after 8pm.

The flight was delayed after already taxiing from the gate due to a malfunction. After 3 hours we were told the flight was canceled. The next flight available was Sunday. My daughter and I stayed overnight in the airport due to this issue. I was given a $12 meal voucher. Unacceptable

Whole experience was poor. Delayed 2 hours. Lied about the delays. Was all jet blues fault and tried to blame on air traffic control. Sent out other let trips and wouldn't allow people to switch aircraft.

My bag was not loaded on my flight. it was not communicated to me until i was waiting for my bag at my destination. there was no confirmation of when my bag was arriving and no way to track it.

Nice plane, clean, wifi available and movies. All the flight attendants were courteous.

The gate attendant in Boston had a high raspy voice and spoke much too fast to be understood. Not pleasant.

The flight was delayed for more than 3 hours the flight attendant was so angry, it was my first flight with JetBlue but i don’t think I flight with them again.

Everything you need to know for your flight from San Juan to San Diego

Information on your arrival and departure airports