Cheap flights from San José to San Francisco
Cheapflights Tip: The best prices from San José Juan Santamaria Intl to San Francisco are usually found in September or October, booked 8 days in advance, depart on a Monday or Tuesday and return on a Monday
Cheap flight deals from San José to San Francisco
Discover tips and strategies to find the most affordable flight options for your journey from San José (SJO) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 30 October 2025.
| Popular in | December | 
|---|---|
| Cheapest in | September | 
| Average price | £355 | 
| Good one-way deal | £194 or less | 
Best time to book a flight from San José to San Francisco
Have a flexible travel schedule? Discover the best time to fly to San Francisco from San José with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from San José to San Francisco
How far ahead should I book a flight from San José to San Francisco?
Booking 8 days in advance of your planned departure date is, on average, the best time to get cheap flights from San José to San Francisco. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from San José to San Francisco?
Currently, November is the cheapest month in which you can book a flight from San José to San Francisco (average of £189). Flying from San José to San Francisco in April is currently the most expensive (average of £288). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SJO to SFO?
When flying from San José to San Francisco, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 81% versus a flight in the morning.
How often are flights from San José to San Francisco delayed?
About 8% of weekly flights between San José and San Francisco have experienced delays in the past year, with the average delay time being 273 minutes.
What is the most punctual flight time for San José to San Francisco flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Sunday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on San José to San Francisco flights?
Over the past year, United Airlines have had the lowest number of delays on this route, with just 7% of flights being delayed.
Related info for your journey
Find useful and relevant information for your journey from San José to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for San José to San Francisco
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How does Cheapflights help users find flights from San José to San Francisco?
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Can Cheapflights find flights from San José to San Francisco with no change fees?
Certainly. Search results for flights to San Francisco from San José shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from San José to San Francisco become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Francisco from San José today and book when prices fit your budget.