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SFO - SJU

Find cheap flights from San Francisco to San Juan from $183

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 9/28. 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
0 bags
Fri 5/24
Fri 5/31

Search hundreds of travel sites at once for deals on flights 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.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to San Juan.
In the last 7 days travelers have searched 44,979,812 times on KAYAK, and here is why:

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Cheap flight deals 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 and deals for you by selecting your travel dates.
Choose your dates
9:43 pm - 2:14 pmSFO-SJU
13h 31m1 stop
10:35 pm - 10:53 amSJU-SFO
15h 18m1 stop
$276JetBlue
Find Deal
Fri, Jun 14 - Mon, Jun 17
11:59 pm - 10:38 amSFO-SJU
31h 39m2 stops
8:33 pm - 10:59 pmSJU-SFO
29h 26m2 stops
$308Frontier
Find Deal
Sun, May 12 - Fri, May 17
12:58 am - 8:34 amSFO-SJU
52h 36m2 stops
8:33 pm - 10:59 pmSJU-SFO
29h 26m2 stops
$316Frontier
Find Deal
Sat, May 11 - Fri, May 17
12:35 am - 3:19 pmSFO-SJU
11h 44m1 stop
2:55 pm - 7:38 amSJU-SFO
19h 43m2 stops
$335United Airlines
Find Deal
Tue, Sep 24 - Tue, Oct 1
10:32 pm - 2:43 pmSFO-SJU
13h 11m1 stop
12:03 pm - 10:33 pmSJU-SFO
13h 30m2 stops
$337American Airlines
Find Deal
Sat, Sep 7 - Wed, Sep 11
12:54 am - 12:22 amSFO-SJU
20h 28m1 stop
12:03 pm - 10:33 pmSJU-SFO
13h 30m2 stops
$338American Airlines
Find Deal
Fri, Sep 6 - Wed, Sep 11
6:45 pm - 12:05 pmSFO-SJU
14h 20m2 stops
1:05 am - 11:39 amSJU-SFO
13h 34m1 stop
$366United Airlines
Find Deal
Sat, Sep 7 - Tue, Sep 10
9:25 pm - 2:49 pmSFO-SJU
14h 24m1 stop
10:30 am - 7:48 pmSJU-SFO
12h 18m1 stop
$374JetBlue
Find Deal
Fri, Sep 6 - Wed, Sep 11
11:50 pm - 11:49 amSFO-SJU
8h 59m1 stop
2:25 pm - 10:23 pmSJU-SFO
10h 58m1 stop
$484Delta
Find Deal
Mon, Sep 2 - Thu, Sep 12
12:40 am - 2:44 pmSFO-SJU
11h 04m2 stops
12:49 pm - 11:27 pmSJU-SFO
13h 38m2 stops
$508Delta
Find Deal
Mon, May 13 - Thu, May 30

Flights from San Francisco to San Juan - Travel Insights & Trends

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.

What’s the cheapest day of the week to fly from San Francisco to San Juan?

The average price of all flights from San Francisco to San Juan Luis Munoz Marin Intl Airport clicked on KAYAK for each day over the last 12 months.
For San Francisco to San Juan, Tuesday is the cheapest day to fly on average and Thursday is the most expensive. Flying from San Juan back to San Francisco, the best deals are generally found on Friday, with Sunday being the most expensive.

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 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 September, where tickets cost $389 on average. On the other hand, the most expensive months are December and April, where the average cost of tickets is $709 and $607 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for 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 month.
To get a below average price on the flight from San Francisco to San Juan Luis Munoz Marin Intl Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 10 days before departure.

Which airlines provide the cheapest flights from San Francisco to San Juan?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, United Airlines offered the best one-way deal for that route, at $183. KAYAK users also found San Francisco to San Juan round-trip flights on JetBlue from $276 and on Frontier from $308.

Good to know

Low season

September

High season

December

Cheapest flight

$183
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly with an average 36% 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 3 days, the lowest price for a flight from San Francisco to San Juan Luis Munoz Marin Intl Airport was $183 for a one-way ticket and $276 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?

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

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

    Miami 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, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from San Francisco to San Juan are Alaska Airlines and Delta. With an average price for the route of $606 and an overall rating of 8.1, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $643 and an overall rating of 8.0.

  • 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.

See more FAQs

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.
8.0
DeltaOverall score based on 11004 reviews
8.6crew
8.2boarding
7.9comfort
7.5food
8.0entertainment
Airline reviews

There was a loud squeaky sound the whole time we were flying.

6.0 GoodEliza, Apr 2024SAN - LAX
Read more about Delta reviews

There was a loud squeaky sound the whole time we were flying.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Honestly, I didn’t expect that I will experience this long time wait during the check in. There was only one person who was taking care of the passengers for the economy class and it took us to wait about one hour to do our check i. As a result we barely get to the airplane as the gate was at the end of the airport. That is totally not professional where one crue is working at the registration desk with economy and 3-4 crues are helping for the business class.

When we checked in my friend and I were sitting seperate. By the time we got to boarding, they automatically switched our seats. I really liked that.

Like most domestic flights in the US, you are basically on your own with this airline when it comes to food, so be sure to purchase meals and drinks ahead of time or expect to arrive starving and dehydrated (like I was).

at the time for boarding the lady just call Group A and no other goups and everybody from A to F go inside without the right turn,and when we get in theres no more spsce for carry on , the ones that get in at not correct group from the back occupy our space !!!!! a mess !!!!

The boarding and flight were ok, but there were several painful issues. The flight was 3:20 in the air and almost four hours door to door, but they only had snack packs on the plane. They really need to have food on longer flights or make it clear to everyone that they won’t have food. They also advertise free WiFi, but it did not work for 90% of this flight. Again, almost four hours door to door. If I had known I was flying spirit for JetBlue prices then I would have planned differently.

I really liked the way snacks and drinks were available throughout the flight!!! The flight attendants were also all fantastic!

Best Thing flight took less time than programmed, quick entry and exit. Recommended!

Always like Jet Blue! It seems, however, that people are getting bigger & seats are getting smaller! We had a very full flight and I couldn't get an aisle seat like I always do. I wish there were more leg room. People sitting next to me were very nice though so it was fine to disturb them if I needed to use the restroom. Otherwise the flight was fine but a bit long.

I think the food / snack service was very poor. tehy could have done better. Evrything else was great

No wifi, not even while close to the continental US or Puerto Rico, no entertainment whatsoever (TVs not working). Totally disappointing.

For some reason, the seats on this flight seemed unusually uncomfortable. Speaking with friends who took another JetBlue flight later in the day, they brought up the same issue.

None of the in flight Direct TV worked. A better selection of Shows would have been better. The baggage was s low. Otherwise we enjoyed our flight!

The service was very good, will use the airline again.

Hated every minute of it. This flight should have only taken 1.5hrs but was delayed over 10hours. Now I am being told I cannot be compensated or refunded my ticket price or extra leg room, which I purchased but did not receive, because the airline is throwing the blame on the 3rd party I purchased tickets through and 3rd party putting the blame on airline. No one wants to help. They received their money and that's all they care about. Im going on 3 days of still trying to get to my final destination, had to cancel car rental, car insurance and hotel. Currently staying in airport until hotels open up. Thank you Lufthansa, Kayak, Underpricer and United for making this trip the worst ever.

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Awful. I got stuck next to a person carrying a dog and behind someone with a dog. People need to board these dogs downstairs. The cabin is crowded enough with your pets

Packed in like sardines, very uncomfortable. Sitting the aisle my shoulder was rammed into numerous times by rushing flight attendants. Also flight was very cold.

Beverage and food services are excellent. We enjoy paying the extra for economy plus for the 3 inches more leg room to be exact.

Flight was delayed by 3 hours. The pilot made up 1 hour during the flight, but that made the wait at the airport 5 hours once you factor getting there 2 hours early.

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

Very uncomfortable seats and seat backs, and I am only 5’9”. Delayed due to crew issues, spent a long time with no ventilation. Teeny overhead bins. Wifi worked well. Arrived safely.

I was delighted that we were able to get on the 4:40 pm flight rather than our original booking at 6:55 pm!! Other than that, the flight was comfortable and landed early😊

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Comfort of seats, ease of boarding. Food selection could be better

Food options were limited which is absolutely embarrassing for a Flight of this size The staff did not come around as much and I am not accustomed to such poor service from American Airlines Drinks I believe were limited to soda and water

Crew were attentive and friendly. Flight was smooth and early! I enjoyed the less crowded plane. Thank you!

We are gluten free, there were not any available complimentary gluten free options.

No meal on a cross country flight? SFO-MiA is pretty much the definition of a coast to coast flight. No meal provided. Sky high wi-fi rates too. Stop nickel and diming your customers.

The staff was unprofessional and didn’t communicate very well. The boarding process was very disheveled, potentially due to a power outage the previous day but there was no contingency plan to properly get passengers boarded the following day. Once boarded the aircraft stayed on the tarmac for over 45 minutes due to high winds. The communication was sporadic but an announcement was finally made an additional 30 minutes later that the flight was cancelled but we couldn’t get off the plane. Prior to deplaning one of the gate agents came on the plane and made an announcement for everyone to pickup their checked bags and take a card to rebook a new reservation because they didn’t have adequate staff. Flights were missed, passengers went to different airports and there was little to no assistance from AA.

You cancelled my flight by email then made it very difficult to get in contact with you. Then put me in a flight with a long layover in Mexico returning to the wrong airport in uk. Mind blowing my stressful. I missed see my grand dad because of you.

Apart from the delay due to unforeseen circumstances. The leg from sjc to dfw was fine. It was the leg from dfw to orf that we encountered issues mainly due to the flight attendant crew not being friendly. We had two small children and we needed some assistance to warm up milk so the baby would sleep. The crew just didn’t get it and made things very difficult. One made a remark that the baby’s dirty diaper smell was a “gift” to the plane in a rude way. Normally I’d brush that off as a funny comment if the rest of the trip the attendants were helpful or understanding of the difficulty we faced. But that wasn’t the case. We were met with rudeness on the second leg. Whereas on the first leg the crew were so nice and helpful.

This was not the BA business class it used to be. Mediocre food, attendants seemed stretched thin. All the little luxuries that used to make BA business fun were missing. Flight delayed and the explanation given was they forgot to pick up crew - I hope I misheard! Transfer in LHR “sticky” - we thought we had way too much time at 3hours but it was needed. Next time will try different route.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Terrible. Seats are bad and the baggage policy is inconsistent

Better than I expected but I did pay for a seat and carry on bags ahead of time.

I hope to avoid flying with them in the future. First flight got cancelled then got stuck with a 13 hour layover in Denver. The process was long and frustrating to many people.

Flight was delayed on the runway for 40 minutes the crew did not even offer even water to passengers to compensate for the flight delayed. The flight was delayed due to aircraft mechanical issues. Worst customer service ever

The flight was delayed and I had to cancel because I would have missed my connection and there were no other flights for the next two days. They also lost my bag!!

My first time to fly Frontier and loved it! Boarding was super easy as we only had personal items. Crew was helpful and funny and the plane was clean. Pilot was also great at landing the plane smoothly.

Book cheap flights from San Francisco to San Juan

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from San Francisco to San Juan found on KAYAK in the last 72 hours.
9/28Sat
1 stopUnited Airlines
11h 05mSFO-SJU
$183
5/15Wed
2 stopsAmerican Airlines
20h 09mSFO-SJU
$192
9/28Sat
2 stopsAmerican Airlines
18h 31mSFO-SJU
$194
5/15Wed
1 stopAmerican Airlines
17h 23mSFO-SJU
$199
8/4Sun
1 stopDelta
10h 34mSFO-SJU
$242
8/3Sat
1 stopUnited Airlines
11h 59mSFO-SJU
$245
5/4Sat
1 stopJetBlue
11h 33mSFO-SJU
$258
7/10Wed
2 stopsAlaska Airlines
17h 00mSFO-SJU
$270
7/2Tue
1 stopDelta
11h 35mSFO-SJU
$305
7/1Mon
1 stopJetBlue
9h 10mSFO-SJU
$312

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Last minute flights from San Francisco to San Juan

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from San Francisco to San Juan that are departing in the next 10 days.
4/27Sat
multi-stopAmerican Airlines
12h 36mSFO-SJU
5/1Wed
multi-stopAmerican Airlines
16h 16mSJU-SFO
$669
4/28Sun
multi-stopAmerican Airlines
12h 36mSFO-SJU
5/4Sat
multi-stopAmerican Airlines
13h 46mSJU-SFO
$671
4/26Fri
multi-stopDelta
13h 44mSFO-SJU
5/1Wed
multi-stopDelta
14h 55mSJU-SFO
$672
4/25Thu
multi-stopDelta
13h 44mSFO-SJU
5/2Thu
multi-stopDelta
13h 15mSJU-SFO
$717
4/26Fri
multi-stopJetBlue
11h 17mSFO-SJU
5/2Thu
multi-stopJetBlue
13h 22mSJU-SFO
$719
4/25Thu
multi-stopDelta
13h 44mSFO-SJU
5/2Thu
multi-stopDelta
14h 55mSJU-SFO
$730
4/26Fri
multi-stopJetBlue
11h 17mSFO-SJU
5/1Wed
multi-stopJetBlue
13h 08mSJU-SFO
$732
4/27Sat
multi-stopUnited Airlines
11h 33mSFO-SJU
5/4Sat
multi-stopUnited Airlines
11h 00mSJU-SFO
$762
4/25Thu
multi-stopUnited Airlines
11h 33mSFO-SJU
5/1Wed
multi-stopUnited Airlines
11h 19mSJU-SFO
$775
4/26Fri
multi-stop
26h 28mSFO-SJU
5/1Wed
multi-stop
18h 46mSJU-SFO
$838

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San Francisco - San Juan Flights

Departure:

San Francisco (SFO)United States

Destination:

San Juan (SJU)Puerto Rico

Return flight deals:

San Juan - San Francisco

Cabin classes: