$181 Find Cheap Flights from San Francisco to Puerto Rico

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 Puerto Rico departing on 8/28. 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
1 adult, Economy, 0 bags

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Cheap Flights from San Francisco to Puerto Rico

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Aguadilla
Aguadilla1 stop$500
Ponce
Ponce1 stop$844
Culebra
Culebra2 stops$1,558
Mayagüez
Mayagüez2 stops$1,558
Aguadilla
Aguadilla1 stop$500
Ponce
Ponce1 stop$844
Culebra
Culebra2 stops$1,558
Mayagüez
Mayagüez2 stops$1,558

Book Cheap San Francisco to Puerto Rico Plane Tickets

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

Sat, Aug 22 - Tue, Aug 25
Frontier Logo
8:51 pm - 1:16 pm
SFO
-
SJU
13h 25m
1 stop
Frontier Logo
3:06 am - 10:29 am
SJU
-
SFO
10h 23m
1 stop
$406Frontier
Mon, Jun 1 - Fri, Jun 5
JetBlue Logo
11:59 pm - 4:37 pm
SFO
-
SJU
13h 38m
1 stop
JetBlue Logo
1:27 pm - 10:47 pm
SJU
-
SFO
12h 20m
1 stop
$442JetBlue
Mon, Sep 14 - Sun, Sep 20
Southwest Logo
10:30 pm - 12:50 pm
SFO
-
SJU
11h 20m
1 stop
Southwest Logo
5:30 am - 1:10 pm
SJU
-
SFO
10h 40m
1 stop
$446Southwest
Sun, Jul 26 - Mon, Aug 3
Multiple Airlines Logo
10:10 pm - 2:16 pm
SFO
-
SJU
13h 06m
1 stop
Multiple Airlines Logo
6:50 am - 11:50 pm
SJU
-
SFO
20h 00m
1 stop
$453Multiple Airlines
Tue, Sep 1 - Mon, Sep 7
Southwest Logo
6:00 am - 10:00 pm
SFO
-
SJU
13h 00m
2 stops
Southwest Logo
5:30 am - 1:00 pm
SJU
-
SFO
10h 30m
1 stop
$458Southwest
Fri, Aug 7 - Fri, Aug 14
American Airlines Logo
5:05 am - 11:59 pm
SFO
-
SJU
15h 54m
1 stop
American Airlines Logo
4:53 pm - 12:51 am
SJU
-
SFO
10h 58m
1 stop
$469American Airlines
Sat, Aug 29 - Tue, Sep 15
Delta Logo
6:00 am - 10:29 pm
SFO
-
SJU
13h 29m
1 stop
Delta Logo
2:26 pm - 9:21 pm
SJU
-
SFO
9h 55m
1 stop
$470Delta
Wed, Aug 5 - Tue, Aug 11
American Airlines Logo
6:00 am - 11:07 pm
SFO
-
SJU
14h 07m
1 stop
American Airlines Logo
6:00 am - 4:00 pm
SJU
-
SFO
13h 00m
2 stops
$475American Airlines
Mon, Aug 17 - Tue, Aug 18
United Airlines Logo
6:15 am - 11:09 pm
SFO
-
BQN
13h 54m
2 stops
United Airlines Logo
12:15 am - 12:14 pm
BQN
-
SFO
14h 59m
2 stops
$664United Airlines
Mon, Aug 31 - Tue, Sep 1
United Airlines Logo
6:15 am - 11:09 pm
SFO
-
BQN
13h 54m
2 stops
United Airlines Logo
12:15 am - 2:49 pm
BQN
-
SFO
17h 34m
2 stops
$708United Airlines
Booking Insights

KAYAK's insights & trends for San Francisco to Puerto Rico flights

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

What is the cheapest month to fly from San Francisco to Puerto Rico?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Puerto Rico, 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 Puerto Rico is April, when tickets cost $122 (return) on average. On the other hand, the most expensive months are February and March, when the average cost of round-trip tickets is $263 and $236 respectively.

How far in advance should I book a flight from San Francisco to Puerto Rico?

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 Puerto Rico, 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 Puerto Rico, you should book around 3 weeks before departure, which saves you about 12% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$181
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 17% increase in price.
Flight from San Francisco to San Juan

FAQs - booking Puerto Rico flights

  • What is a good choice for public transportation to get from the San Juan Luis Munoz Marin International Airport to the downtown area?

    One of the most convenient and cost-effective ways to make this journey is aboard local bus route number D53, which offers service from the airport to very popular destinations in the downtown area, including the convention center, as well as to the very popular Old San Juan area.

  • If I plan on renting a car in Puerto Rico, what type of car seat laws for my children do I need to know about?

    When you drive a car in Puerto Rico, it is important to remember that every child under age four needs to ride in a child safety seat. Any child that is older than four but under the age of eight needs to travel in a booster seat, and all children 12 and under need to travel in the rear of a vehicle.

  • Will I need a passport or a visa to travel to Puerto Rico from the US?

    Because Puerto Rico is a United States territory, there is no need to take a passport or obtain a visa before traveling to Puerto Rico. Travelers must remember they do need some type of valid identification to travel to Puerto Rico, just as they would any other state in the United States.

  • If I want to stay at a hotel right at the San Juan Luis Munoz Marin International Airport, are there any good choices?

    One of the great things about this airport is that there are several hotels that have a location right at the entrance to the airport, and they include the Hampton Inn and suites San Juan and the Embassy Suites by Hilton San Juan.

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

    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 Puerto Rico.

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

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

    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 from San Francisco to Puerto Rico with an airline and back with another airline.

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

    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 from San Francisco to Puerto Rico up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Puerto Rico

  • One of the most popular ways to travel from San Francisco International Airport (SFO) to Puerto Rico is to travel to the San Juan Luis Munoz Marin International Airport (SJU). When traveling on this route, you will find one-stop flights aboard Delta Airlines, American Airlines, United Airlines, JetBlue, and Frontier Airlines.
  • One destination that is quite popular in Puerto Rico is the Aguadilla Borinquen Airport (BQN), which sits on the northwestern coast of the country. When traveling to this airport from San Francisco International Airport, you will find one-stop flights aboard JetBlue.
  • For travelers that are looking for a great way to get to the San Francisco International Airport from the downtown San Francisco area without having to drive their own car, a trip on the BART yellow or red line can have you at the airport in around 30 minutes.
  • Travelers that are looking for a quiet and comfortable location to wait for their flight to Puerto Rico at the San Francisco International Airport will be happy to know that this airport operates several airline lounges, including those operated by United Airlines, Alaska Airlines, and Delta Airlines.
  • If you plan on traveling with a pet or a service animal through the San Francisco International Airport, you will find animal relief areas available operating 24 hours per day at seven different locations throughout all of the terminal buildings at the airport. Each of the areas offers things such as drinking bowls and garbage areas for pet waste.

Reviews of the top 5 airlines serving from San Francisco to Puerto Rico

 
Need help choosing which airline to fly with from San Francisco to Puerto Rico? 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
DeltaOverall score based on 8452 reviews
8.1Boarding
8.5Crew
7.2Food
7.8Comfort
7.8Entertainment
Airline reviews

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!

10.0 ExcellentTeresa, Apr 2026
SMF - LAX
Read more Delta reviews

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.

I took seat 15A in anticipation of window seat, there is no window.

Flight late, the waited for a long time for “personal” to arrive at gate to dock the plane in Rochester. So annoying. This flight was expected, why aren’t personel available for the jet bridge?

My recent experience was excellent on Delta! I flew with Delta Comfort and I was really comfortable in my seat. I enjoyed the in-flight service. The flight attendants were so friendly and hospitable. I love the snack on the flight as well. This was my first time flying on Delta and I will definitely consider flying with them again.

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

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.

Some crew were unfriendly or in some cases just straight up rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

United Airline crews were very friendly and very attentive. 12 hours flight was gone like in a shorter one.

Flight itself excellent, but delayed so missed connection & got to destination 2 hrs later

Due to cancellation of connecting flight (Lufthansa) I didn’t fly with United

It was a red-eye, but the flight felt surprisingly quick. The seats were very comfortable, and that made resting much easier. I also want to thank the gentleman seated next to me, who graciously moved so my mom could sit beside me. We slept almost the entire way. The cabin crew was respectful in not disturbing us, while also being courteous and professional throughout. Thank you, United.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

It was perfect! I've never flown with United before, but I definitely will in the future

The space between seat rows seemed to be larger than other airlines. I didn’t check their food or entertainment since I slept most of the way. They do seem to have a lot of options for purchase though.

Kayak sucked. You gave me a confirmation number that was not useable by the jet blue system. Nor did you send any check in emails. I’ll not be using your site again. Nice work.

Direct tv did not work on flight Short flight so no good service offered Arrived early to destination and had to wait for gate to open. Deplaned LATER than if we arrived on time!! Poor planning Jet blue has had something go wrong on every flight I’ve taken with them in last five years. Terribly run airline

Given us a free miles or free flight for waiting for 9 hours I didn’t get home till 5am in the morning and I was supposed to be home at 9:30 touch down.

Excellent price. Everything on time. two bad parts. Kayak said I couldn't sign in for the flight online, but I got an email at the same time from Jet Blue and they let me sign in online. Second bad part was that, although I had provided my known traveler number, neither of my boarding passes, for this flight and the previous one, had TSA pre-check showing.

Jet blue was great But the Jayak system Wasa pure nightmare and wasted so much of my time and energy by not giving me a way to access jet blue to check in the flight back I didn’t even get the number confirmation code 24 hours before. Because I didn’t receive the email with the confirmation code I could NoT CHECk IN. I spoke to a kayak third party and they informed me I could not carry a carry on, on the flight which caused me so much extra stress it was just too much. You can be sure I will not be using it recommending your site. Again.

There was a screen but no earphones that could use the older input so I could listen to anything.

My experience with JetBlue was fine BUT I am very upset with Kayak! JetBlue had delayed our scheduled departure by an hour and you NEVER notified me of the change. I did not hear directly from JetBlue because the trip was booked through Kayak, a mistake I will not repeat. Your reminder of the our trip last week still had the WRONG departure time. Our return trip has also changed, and again no notice from you.

Jet blue just had great service overall! Only a little turbulence heading out of Austin, otherwise the jet stream helped the speed of the trip!

Boarding was quick and efficient. The flight crew were friendly. There were limited food options available on the flight. The pocket guide said there would be salad and sandwich sections available on flights over 3.5 hours. The only food available were snack boxes. And those were limited as well. My flight was over 5 hours. The entertainment system worked well. I had both extra legroom seats and regular coach seats. The seats were not very comfortable. The entertainment controls in the armrest made it difficult to rest my arm without changing the channel on my neighbors TV. Overall, my experience was mediocre.

Premium Economy Good crew, good service, excellent food. Seat back screen just not bright enough.

The crew was very attentive through out the flight. Seats were comfortable, nice flight bag with pillow and blanket. Food was okay, since it was a overnight flight seemed to go by fast.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

Boarding gate at LAX was too crowded—two gates next to one another

On time departure and early arrival. Flight attendant very nice.

The business class layout of chairs was weired. You are sitting directly across stranger.,

The SFO Lounge crew were amazing. The bartender Faris was great. Thanks!

Friendly crew is the only nice thing. Seats uncomfortable. Food and snacks horrible. Movies were the same as the first 10 hour flight two weeks before

Was not able to do a online check-in because the American Airlines system doesn't store our visa or other passport information, allowing us to have a trouble-free check-in. We were forced to have to check-in at the counter which Changes are upgrade status given that we were not able to check in much earlier.

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

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 Puerto Rico

Information on your arrival and departure airports