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10/24/2026 Find Cheap Flights from San Francisco to San Juan (SFO to SJU)
SFO - San Francisco SJU - San Juan 
Find Cheap Flights from San Francisco to San Juan (SFO to SJU)
Fares Starting from $217
SFO - San Francisco SJU - San Juan Great deal! This is the lowest price we've seen for this one way route in the last 12 hours. Prices may change and aren't guaranteed for all flights or dates. Click on the price to continue your search and check the latest available fare. Ref. id 202609~Ref:Eudq8BZiDEid_Ax8IOAaPQ
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Cheap Flights from San Francisco to San Juan - Compare & Book Our Best Deals
This route offers great flexibility for different travel plans. Browse one-way fares from $216.62, round-trip fares from $481.99, and other affordable options across different budgets. Compare flight choices, explore schedules, and book the best San Francisco to San Juan deals that fit your budget and travel preferences.
Top Airlines that fly from San Francisco to San Juan
Cheap Flight Deals from San Francisco to San Juan
SFO San Francisco Sat, Oct 24
SJU San Juan
from $217
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SFO San Francisco Sat, Oct 17
SJU San Juan
from $225
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SFO San Francisco Mon, Oct 12
SJU San Juan
from $252
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SFO San Francisco Sat, Oct 3
SJU San Juan
from $253
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SFO San Francisco Fri, Oct 2
SJU San Juan
from $253
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SFO San Francisco Sun, Sep 27
SJU San Juan
from $256
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SFO San Francisco Mon, Sep 28
SJU San Juan
from $256
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SFO San Francisco Tue, Sep 29
SJU San Juan
from $256
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*All fares above were last found on: Fares are one way/round trip. Fares incl. all fuel surcharges, taxes & fees and our service fees. Displayed fares are subject to change and cannot be guaranteed at the time of booking. See all booking terms and conditions. 202609~Ref:Eudq8BZiDEid_Ax8IOAaPQ
When is the Cheapest Time to Book Flights from SFO to SJU?
Explore data-powered insights and trends for flights from San Francisco to San Juan. Discover average fares, cheap months to fly, when to book, and plan smarter.
What’s the cheapest day of the week to fly from San Francisco to San Juan?‡
What is the cheapest month to fly from San Francisco to San Juan?‡
‡This information is based on historical data from the last 365 days.
Finding Affordable Flights from San Francisco to San Juan
- Plan Ahead - One of the keys to securing cheap flights from San Francisco to San Juan is to plan your trip well in advance. Airlines often offer lower prices for those who book tickets months ahead. Keep an eye on special promotions and sales events, which can yield significant savings.
- Flexibility is Key - Being flexible with your travel dates can also lead to substantial cost savings. Consider flying during off-peak seasons or on weekdays when prices tend to be lower.
- Set Price Alerts - To keep tabs on flight prices, consider setting up fare alerts. These alerts will notify you when fares from San Francisco to San Juan drop, giving you the opportunity to grab cheap deals.
- Consider Nearby Airports - If San Juan has multiple airports, check the prices at each one. Sometimes, flying into a nearby airport and then taking a short train or bus ride to your destination can be a much cheaper option.
- Bundle and Save - Booking your flight and accommodation together as a package can often result in significant savings. CheapOair offers these bundled deals, so make sure to explore this option.
When should I book flights from SFO to SJU? ‡
‡Got flexible travel dates? Use our flight data from the past year to discover ideal time to fly from San Francisco to San Juan. Find out which months and days typically offer lower fares and let CheapOair search for the best options.
CheapOair provides the predicted prices for one-way trips or round-trips with a duration of 7 days for domestic and 14 days for international trips based on historical data and available flight information. Graphs are estimates only. Prices are subject to change and can't be guaranteed until ticketed.
Estimated price for
Round-trip
‡Graphs are estimates only. Based on historical data and available flight information. Prices are subject to change and cannot be guaranteed until ticketed.
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Cheap Flights from San Francisco to San Juan
Looking for flights from San Francisco to San Juan? Look no more, for you're at the right place. Book cheap flights from San Francisco to San Juan on CheapOair and enjoy great discounts. Whether its leisure or a business trip, we offer the most competitive rates on flight tickets to destinations around the world. Grab SFO to SJU flight deals on CheapOair and save big!
Airports in San Francisco
The US city of San Francisco in California is primarily served by San Francisco International Airport. The airport also serves San Francisco Bay Area and is a major gateway to Europe and Asia. Located 13 miles away from downtown San Francisco, this airport is the largest in Northern California and the second-busiest in California. San Francisco International Airport is well-connected to all parts of the city through a superb transportation network comprising a rail network (BART and Caltrain), buses operated by nearby San Mateo County (called SamTrans), shared ride, vans, hotel courtesy shuttles, and taxis.
Explore San Juan
San Juan is the capital city of Puerto Rico. the city is home to soft sand beaches, a plethora of cultural attractions, and a vibe that makes this city is an excellent destination to enjoy a memorable vacation. Beachfront luxury hotels and resorts are found easily in the city and its neighboring districts. San Juan also treats visitors with historical forts, fine dining, colonial architecture, interesting museums, and more. At the center of the city is Old San Juan, listed in UNESCO World Heritage Sites.
Things to do in San Juan
Museo de las Americas
Located in Old San Juan, Museo de las Americas explores the history of Puerto Rico with its exhibits focusing on the ethnic groups, arts, and the colonization of Puerto Rico. Permanent exhibits at Museo de las Americas offer a comprehensive overview of the country's history and temporary exhibits feature several interesting themes including anything from modern art to traditional practices.
Museum of Puerto Rican Art
One of the major highlights of San Juan, Museum of Puerto Rican Art is an important player in the Caribbean culture scene. The older portion of the museum displays its permanent collection while the newer portion boasts a multi-story atrium, a sculpture, a theater, and a popular restaurant. Museum of Puerto Rican Art also organizes exhibitions and workshops.
Puerto Rico Museum of Contemporary Art
Founded in 1984, Puerto Rico Museum of Contemporary Art is an excellent place to explore the work of the country's finest modern-day artists. The changing exhibits of the museum showcase modern island-made prints, posters, paintings, and sculptures. The museum is located inside the sacred Heart University.
Best Time to Fly to San Juan
Weather-wise, the best time to visit the city of San Juan is from mid-April to June. During these months, the weather of the city is pleasant for sightseeing.
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