£165 Cheap Flights from San Juan (SJU) to San Francisco (SFO)

View £165 flight on Fri, 21 Aug 2026Opens in a new window

Flight 1

Popular airlines from Luis Munoz Marin Intl. Airport (SJU) to San Francisco International Airport (SFO)

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

Prices were available within the past 7 days and start at £165 for one-way flights and £385 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Fri, 21 Aug - Sun, 6 Sept
SJU
San Juan
SFO
San Francisco
£385 Return, found 5 days ago
£385
Return
found 5 days ago
Select JetBlue Airways flight, departing Fri, 21 Aug from San Juan to San Francisco, returning Sun, 6 Sept, priced at £385 found 5 days ago
JetBlue Airways
Fri, 21 Aug - Sun, 6 Sept
SJU
San Juan
SFO
San Francisco
£401 Return, found 5 days ago
£401
Return
found 5 days ago
Select JetBlue Airways flight, departing Fri, 21 Aug from San Juan to San Francisco, returning Sun, 6 Sept, priced at £401 found 5 days ago
JetBlue Airways
Fri, 21 Aug - Sun, 6 Sept
SJU
San Juan
SFO
San Francisco
£407 Return, found 5 days ago
£407
Return
found 5 days ago
Select JetBlue Airways flight, departing Fri, 21 Aug from San Juan to San Francisco, returning Sun, 6 Sept, priced at £407 found 5 days ago
JetBlue Airways
Fri, 21 Aug - Sun, 6 Sept
SJU
San Juan
SFO
San Francisco
£420 Return, found 5 days ago
£420
Return
found 5 days ago
Select JetBlue Airways flight, departing Fri, 21 Aug from San Juan to San Francisco, returning Sun, 6 Sept, priced at £420 found 5 days ago
JetBlue Airways
Fri, 21 Aug - Sun, 6 Sept
SJU
San Juan
SFO
San Francisco
£424 Return, found 5 days ago
£424
Return
found 5 days ago
Select JetBlue Airways flight, departing Fri, 21 Aug from San Juan to San Francisco, returning Sun, 6 Sept, priced at £424 found 5 days ago
JetBlue Airways
Fri, 21 Aug - Sun, 6 Sept
SJU
San Juan
SFO
San Francisco
£436 Return, found 5 days ago
£436
Return
found 5 days ago
Select JetBlue Airways flight, departing Fri, 21 Aug from San Juan to San Francisco, returning Sun, 6 Sept, priced at £436 found 5 days ago
JetBlue Airways
Fri, 21 Aug - Sun, 6 Sept
SJU
San Juan
SFO
San Francisco
£440 Return, found 5 days ago
£440
Return
found 5 days ago
Select JetBlue Airways flight, departing Fri, 21 Aug from San Juan to San Francisco, returning Sun, 6 Sept, priced at £440 found 5 days ago
JetBlue Airways
Fri, 21 Aug - Sun, 6 Sept
SJU
San Juan
SFO
San Francisco
£460 Return, found 5 days ago
£460
Return
found 5 days ago
Select JetBlue Airways flight, departing Fri, 21 Aug from San Juan to San Francisco, returning Sun, 6 Sept, priced at £460 found 5 days ago
JetBlue Airways
Fri, 21 Aug - Sun, 6 Sept
SJU
San Juan
SFO
San Francisco
£470 Return, found 5 days ago
£470
Return
found 5 days ago
Select JetBlue Airways flight, departing Fri, 21 Aug from San Juan to San Francisco, returning Sun, 6 Sept, priced at £470 found 5 days ago
JetBlue Airways
Fri, 21 Aug - Sun, 6 Sept
SJU
San Juan
SFO
San Francisco
£474 Return, found 5 days ago
£474
Return
found 5 days ago
Select JetBlue Airways flight, departing Fri, 21 Aug from San Juan to San Francisco, returning Sun, 6 Sept, priced at £474 found 5 days ago

Find the cheapest month to fly from San Juan (SJU) to San Francisco (SFO)

August is typically the cheapest month to fly

From £191 - £373 per traveller.

Frequently asked questions

What is the cheapest month to fly from San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
February is typically the cheapest month to fly from San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.), with average return fares of approximately £305. This is about 21% lower than the average price throughout the year. February often sees lower prices as it's outside of peak holiday travel seasons, leading to reduced demand. Other cheap months to fly from San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.) include April and September.*Averages based on flights available on Expedia in the last year.
How do I find cheap flights from San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
To find a cheap flight from San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
Based on booking data from the past year, the best time to find a good deal on a flight from San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.) is typically in February or September. You can expect average prices around £305 for a return flight during these months. These periods often offer a good balance of lower fares and availability, allowing you to plan your trip without breaking the bank.*Prices based on flights available on Expedia in the last year.
How many flights per day from San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
There are approximately 58 connecting flights per day from San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.). Some common connection points include Orlando Intl. (MCO), Miami Intl. (MIA), and Hartsfield-Jackson Atlanta Intl. (ATL).
What is the earliest flight from San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
The earliest flight from San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.) typically departs at approximately 12:25 AM local time, operated by Frontier Airlines. This is a seasonal service active in October. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
If you're flying from San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.), you'll typically find the most flights on a Thursday, with around 41 flights available. This gives you a good selection of options for your journey. Major airlines on this route include American Airlines, United Airlines, and JetBlue Airways. Flight schedules are consistent throughout the week, so you'll find similar options on other days.
What are the most popular departure times for flights from San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
The most popular departure times for flights from San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.) are in the early morning, from 6am to 9am. About 33% of passengers prefer this time. Many major carriers, including American Airlines, United Airlines and Delta Air Lines, offer flights during this window. This timing works well because you can start your travel day early and arrive in San Francisco with plenty of time to settle in.
How long does it take to fly from San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
Flying from SJU to SFO with a connection usually takes about 11 hours 20 minutes, traveling roughly 3,626 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
Select the "Business class" and "First class" filters when looking for SJU to SFO flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.) flight with Expedia?
It's easy to earn miles on a San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for San Francisco from Luis Munoz Marin Intl. (SJU)?
From Luis Munoz Marin Intl. (SJU), you can fly into San Francisco Intl. (SFO) to reach San Francisco. Some flights may connect through major hubs like Orlando Intl. (MCO), Miami Intl. (MIA), Tampa Intl. (TPA) before reaching San Francisco. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.) at the last minute?
Typically, booking a last minute flight from San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.) flight and hotel package?
Securing a San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.)?
If you booked your San Juan (SJU-Luis Munoz Marin Intl.) to San Francisco, CA (SFO-San Francisco Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Luis Munoz Marin Intl.
Destination airport
San Francisco Intl.
Return price
£385
Distance
5800 km

Book with confidence

Compare flights from San Juan to San Francisco easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from San Juan to San Francisco. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to San Francisco Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Luis Munoz Marin Intl. to San Francisco Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Luis Munoz Marin Intl. (SJU) to San Francisco Intl. (SFO)

The easiest way to view the best deals on flights from San Juan to San Francisco today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Luis Munoz Marin Intl. to San Francisco Intl. start at just £385 and range up to £474.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near San Juan and San Francisco
  • booking your flight during August, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your San Juan to San Francisco flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Luis Munoz Marin Intl. to San Francisco Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from San Juan to San Francisco easily and book with confidence

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*Available to Expedia members.