SFO - SJU

$184 Find Cheap Flights from San Francisco to San Juan

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 Francisco to San Juan departing on 9/15. 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 Juan Luis Munoz Marin Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to San Juan.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to San Juan.
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Everything you should know

Cheapest round-trip
$416
Typical prices: $384-$660
Southwest
Wed 8/12Wed 8/19
SFO - SJU • 2 stops
Cheapest one-way
$184
Typical prices: $230-$413
Frontier
Tue 9/15
SFO - SJU • 1 stop
Top airlines
Cheapest • from $416 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San Francisco and San Juan. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $305 (round-trip)
Shortest trip • 6h 11m (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 15% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 11% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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We hope you love your trip to San Juan!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Francisco to San Juan (SFO-SJU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to San Juan 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 Francisco to San Juan

Wed, Aug 12 - Wed, Aug 19
Southwest Logo
6:00 am - 10:00 pm
SFO
-
SJU
13h 00m
2 stops
Southwest Logo
5:15 am - 1:50 pm
SJU
-
SFO
11h 35m
2 stops
$416Southwest
Wed, Aug 19 - Wed, Aug 26
Multiple Airlines Logo
10:35 pm - 2:16 pm
SFO
-
SJU
12h 41m
1 stop
Multiple Airlines Logo
4:58 pm - 11:50 pm
SJU
-
SFO
9h 52m
1 stop
$421Multiple Airlines
Wed, Aug 19 - Mon, Aug 24
Multiple Airlines Logo
10:15 pm - 2:15 pm
SFO
-
SJU
13h 00m
1 stop
Multiple Airlines Logo
4:58 pm - 11:50 pm
SJU
-
SFO
9h 52m
1 stop
$426Multiple Airlines
Tue, Sep 1 - Tue, Sep 8
Southwest Logo
10:30 pm - 12:50 pm
SFO
-
SJU
11h 20m
1 stop
Southwest Logo
1:20 pm - 9:10 pm
SJU
-
SFO
10h 50m
2 stops
$431Southwest
Fri, Aug 28 - Tue, Sep 1
Southwest Logo
1:55 pm - 9:25 am
SFO
-
SJU
16h 30m
2 stops
Southwest Logo
5:15 am - 1:50 pm
SJU
-
SFO
11h 35m
2 stops
$441Southwest
Sun, Aug 30 - Wed, Sep 16
Multiple Airlines Logo
10:35 pm - 2:16 pm
SFO
-
SJU
12h 41m
1 stop
Multiple Airlines Logo
2:32 pm - 11:19 pm
SJU
-
SFO
11h 47m
1 stop
$446Multiple Airlines
Tue, Aug 25 - Tue, Sep 22
Multiple Airlines Logo
10:15 pm - 2:15 pm
SFO
-
SJU
13h 00m
1 stop
Multiple Airlines Logo
4:30 pm - 11:19 pm
SJU
-
SFO
9h 49m
1 stop
$451Multiple Airlines
Sat, Aug 22 - Thu, Aug 27
JetBlue Logo
10:57 am - 11:18 pm
SFO
-
SJU
9h 21m
1 stop
JetBlue Logo
4:58 pm - 11:50 pm
SJU
-
SFO
9h 52m
1 stop
$452JetBlue
Tue, Aug 18 - Mon, Aug 24
Southwest Logo
5:50 am - 9:05 pm
SFO
-
SJU
12h 15m
2 stops
Southwest Logo
5:00 am - 2:10 pm
SJU
-
SFO
12h 10m
2 stops
$453Southwest
Wed, Aug 12 - Wed, Aug 19
JetBlue Logo
10:57 am - 11:18 pm
SFO
-
SJU
9h 21m
1 stop
JetBlue Logo
4:58 pm - 11:50 pm
SJU
-
SFO
9h 52m
1 stop
$454JetBlue
Booking Insights

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

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

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

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 Francisco to San Juan Luis Munoz Marin Intl Airport departing in August.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to San Juan Luis Munoz Marin Intl Airport, 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 Francisco to San Juan Luis Munoz Marin Intl Airport is October, where tickets cost $458 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is $593 and $584 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to San Juan Luis Munoz Marin Intl Airport, 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 Francisco to San Juan Luis Munoz Marin Intl Airport, you should book around 3 weeks before departure, which saves you about 15% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$184
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 14% increase in price.
Flight from San Francisco to San Juan

When to book flights from San Francisco to San Juan

Are your dates flexible? Find out the best times to travel from San Francisco to San Juan 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 Francisco to San Juan flights

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

    In the last 5 days, the lowest price for a flight from San Francisco to San Juan Luis Munoz Marin Intl Airport was $184 for a one-way ticket and $416 for a round-trip.

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

    Yes

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

    On your way to San Juan, you’ll fly out from San Francisco. You’ll be landing at San Juan Luis Munoz Marin Intl.

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

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

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

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

  • What is the most popular layover when flying to San Juan from San Francisco?

    Fort Lauderdale is the most popular layover city among KAYAK users traveling from San Francisco to San Juan.

  • Which is the best airline for flights from San Francisco to San Juan, Southwest or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from San Francisco to San Juan are Southwest and Alaska Airlines. With an average price for the route of $593 and an overall rating of 7.9, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $756 and an overall rating of 7.9.

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

    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 Francisco to San Juan.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan from San Francisco 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 Francisco to San Juan?

    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 Juan with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and SJU 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 Francisco to San Juan?

    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 Juan from San Francisco 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 Francisco to San Juan

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to San Juan. 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 Francisco to San Juan? 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.
7.8
DeltaOverall score based on 8419 reviews
8.1Boarding
7.8Entertainment
7.8Comfort
7.2Food
8.5Crew
Airline reviews

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

4.0 OkayAndrew, Jun 2026
LAX - JFK
Read more Delta reviews

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

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

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

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!

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

N Everything was perfect from boarding to assistance to baggage in Tampa

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

It was perfect! United Airlines staff was extremely caring, super friendly and professional

United has maintenance issues and can then never recover. No operations ability and simple issues always turn into multiple hours long cascading delays. Worst airline on earth.

I paid for a confirmed upgraded aisle seat and was moved to a center seat in the back of the plane at the last minute.

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

Easy of boarding, helpfully staff at check in, surprisingly comfortable seating

Lost of requested seat assignments. Lost my husband's meal choice

My service dog and I were asked to deplane just before they closed the door - clearly very last minute they couldn’t find the documentation that I have filled out many many times before that is for flying service animals. I purposely purchase 3seats (a whole row) since he is large and not all passengers want to sit next to a dog on a cross country flight. The plane departed with my husband on it!!! They made me fill out a hard copy of the same form and had to reschedule me on a later flight where they could find 3 seats together!! I’ve done this so many times before - clearly the error was on their part in a technology glitch - but really people - do better!! Very traumatic - and my husband had to wait for us when he landed ….so bad. Poor pup was confused and tired.

My flight time was changed without any notification to me which ruined my time sensitive plans so I ended up completely changing my travel plans and no reimbursement.

No screens or meal options. Freezing cold. Dirty seats. Left late.

I liked that my son and I were reseated next to each other (we had different bookings). I liked that it was a directg flight and mostly on time. I liked that you provided pillows and blankets. Flight attendants were generally courteous. The messaging through wifi did not work well. The food was not good. Seats are very narrow and I felt slightly claustraphobic in the window seat.

Agency very bad had to cancelled my booking too many changes in the flight changed my flight to 1 week

Luggage did not make it onto my plane. Business seats were economy with empty row seat. Just horrible experience. Why would the company allow for transfers that don’t give employees enough time to transfer luggages??

The gate experience at LAX was abysmal (same for the arrival experience two days prior). Despite the LAX -> SAT schedule of two flights daily, our departure gate was at a smaller hub that we had to be bussed to from Terminal 4. Fortunately, I arrived at LAX extra early and had time to spare, but if I had not known, I might have missed my flight. I looked at the LAX airport map in the AA app and there was no indication of the additional boarding process. Lastly the gate area we were bussed to was crowded with limited food and beverage options. On flight, the fight attendant was hospitable and attentive, the flight was smooth, and AA's free (and working) wifi for AA members were all on the positive side.

Our flight from JFK to Madrid was delayed. We had to go from one side of the Madrid airport (Terminal 4s to the far end of terminal 4 - Gate K98) to our gate in less than 30 minutes. Put passport control and security/baggage check and that’s very hard unless you’re Usain Bolt. I called Iberia Airlines and the telephone customer service told me that I was going to have to pay to re-book. Luckily the help desk in the airport (who was dealing with dozens of people from the same JFK-Madrid flight) did not charge us extra to reschedule to a flight 8 hours later. They also gave us a voucher for breakfast and lunch. Glad the actual person at the airport had some actual sense.

For an long range economy flight I feel more space and more meal options need to be offered for flights over 5 hours

Take-off delayed an hour because of a missing flight officer, so,arrived in Charlotte lates causing many passengers to miss connections. Otherwise a very good flight, safe and comfortable, with an excellent professional crew.

The flight from LA to Chicago was smooth and service was very good overall.

Delayed delayed. Poor professionalism. Our seats changed and we pay for them

B-class on an old plane with antiquated amenities and poor service. Landed in Rome w/o bag that didn’t make the connection (plenty of time in London). Bag will come to hotel NOT the day it lands but the following night!! Still waiting for bag…BA had nothing to offer in support and couldn’t even tell me their comp, told to submit receipts and then I’ll learn what is or isn’t covered.

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

The aircraft was fine, it’s was just the service. The flight got canceled several times and that was very inconvenient for my 69 years old mom.

My checked in luggage cost was $59, almost ticket price. The first 13 rows were empty, but fly attendant did not alow women with little boy change her middle sit, sweet boy was crying, I am so sorry for mother and passengers. At the end of the flight the cabin became impossible cold. Only good was timing of departure and early landing, but it suppose to be normal.

Seamless flight, didn’t feel like five hours at all very smooth ride. Watched two good movies didn’t even realize I was on a plane. The staff were extremely nice and helpful.

I tried to book a flight with Jet Blue. Your third party company hijacked my attempt with a website that looked like I was booking with Jet Blue. I realized it when I paid. I tried to cancel and was told by a man in India that there were no refunds. $735 stolen, Thanks Kayak!

It was inexplicably canceled and we are stuck in LA, haven't gotten home and it has been an inconvenience having lost work (on unpaid leave for my husband).

I like everything. Blythe at DCA is the absolute best!

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.

They didn’t offer a water, even after I asked

Remind customers of the need to have passport or new ID for boarding.

The flight never took off and we spent 7 hours at the airport

First of all we hade waited 3 hours in the airplane waiting to leave. Second the return schedule was changed and it messed up my entire vaction. I won't buy never again another flight and recommend to nobody traveling with them.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

This airline sucks. They offer low rates then charge you for everything, the app does not work well, the seats are the most uncomfortable. Maintenance issues on the flight, and you still have to sit through their credit card commercials. People are nice enough but does not make up for overall poor experience.

The worst. They don’t follow procedure for boarding per group. Flight got delayed for no understandably reasons, they changed our destination from PR to Miami, left us inside a plane for more than 8 hours, then cancelled flight in Miami leaving us stranded. Poorly managed re-accommodation for a new flight and overnight stay so I have to spend in a new ticket and my own hotel room to been able to get to my office next day. Lost 2 days of work and as a doctor, patients loosing their appointments. to other flights and besides

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

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

Information on your arrival and departure airports