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

Popular airlines from San Francisco Intl. Airport (SFO) to San Juan (SIG-Fernando Luis Ribas Dominicci)

Alternative airports near San Juan

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Luis Munoz Marin Intl. SJU. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $285
SJU
Luis Munoz Marin Intl.
Cheapest
Average driving time to city center16 min
Flights from $285

Frequently asked questions

How much does a flight from San Francisco Intl. Airport (SFO) to Fernando Luis Ribas Dominicci Airport (SIG) cost?
Grab a cheap one-way flight or cheap return flight from San Francisco Intl. Airport (SFO) to Fernando Luis Ribas Dominicci Airport (SIG) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from San Francisco Intl. Airport (SFO) to Fernando Luis Ribas Dominicci Airport (SIG)?
Traveling in is a good way to save, as it's the cheapest month for flights between SFO and SIG. You'll typically find the lowest prices during off-peak months.
What is the cheapest airline that flies from San Francisco Intl. Airport (SFO) to Fernando Luis Ribas Dominicci Airport (SIG)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from SFO to SIG. Then, sort your results by "Price (lowest to highest)" to snap up the best deal available.
How many flights per day from San Francisco Intl. Airport (SFO) to Fernando Luis Ribas Dominicci Airport (SIG)?
Direct flights from San Francisco Intl. Airport (SFO) to Fernando Luis Ribas Dominicci Airport (SIG) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SFO to SIG?
Usually you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can change depending on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Francisco Intl. Airport (SFO) to Fernando Luis Ribas Dominicci Airport (SIG)?
Book a flight from San Francisco Intl. Airport (SFO) to Fernando Luis Ribas Dominicci Airport (SIG) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Later departures have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from San Francisco Intl. Airport (SFO) to Fernando Luis Ribas Dominicci Airport (SIG) last-minute?
Last-minute fares from SFO to SIG are usually more expensive. To secure the cheapest rates, start looking for flights as early as possible. That said, if your travel plans are flexible, it's possible to score a cheap fare right before your journey.
Can I cancel or change the date of my flight from San Francisco Intl. Airport (SFO) to Fernando Luis Ribas Dominicci Airport (SIG)?
You can usually reschedule or cancel your SFO to SIG flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
San Francisco Intl.
Destination airport
Fernando Luis Ribas Dominicci
Distance
3619 mi

Book with confidence

San Francisco to San Juan Flights

The cheapest times to fly from San Francisco to San Juan

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Francisco to San Juan are during the month of . You can find some of the cheapest flights from San Francisco to San Juan with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Francisco to San Juan

Sunday is one of the best days to book for cheap flights from San Francisco to San Juan: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Francisco to San Juan

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Francisco to San Juan in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Francisco to San Juan flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Francisco to San Juan airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

San Francisco to San Juan Flights

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*Available to One Key members.