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Cheap flights from Islip to San Francisco (ISP - SFO) from $380

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/12. 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.
ISP — SFO
Jun 15 — Jun 221
From?
To?
Sat 6/15
Sat 6/22
1 adult, Economy
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How far in advance should I book a flight from Islip, New York to San Francisco?

To save up to 68% on this flight, we recommend booking at least 47 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Islip, New York to San Francisco from $423 1-2 weeks out and tickets from $582 for flights departing within the next 72 hours.

What is the cheapest month to fly from Islip, New York to San Francisco?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, September can be a great choice for travel to San Francisco. Flights to San Francisco from Islip, New York in September are about $396 on average during September, but can be found for as low as $124.

What is the cheapest time of day to fly from ISP to SFO?

When flying from Islip, New York to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

One-way flights to San Francisco from Islip

Search for one-way flight options from Islip to San Francisco. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,080,152 searches. Data last updated June 10, 2024.
Mon 8/129:53 amISP - SFO
2 stops16h 03mMultiple Airlines
Deal found 6/9$380

No data available for this route at this time. Please check back soon.

Best time to book a flight from Islip to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Islip with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Islip to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What does ISP to SFO mean?

    ISP and SFO are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. ISP to SFO refers to a flight route from Islip Long Island Airport to San Francisco Airport.

  • Can I find deals for flights from Islip to San Francisco that include extra baggage allowance?

    The amount of baggage you can bring on your Islip to San Francisco flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Islip to San Francisco with specific airlines?

    Yes, Cheapflights allows you to browse and filter Islip to San Francisco flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Islip to San Francisco that include hotel bookings?

    Yes. In addition to deals on Islip to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Islip to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Islip to San Francisco.

  • Can I find deals for business class flights from Islip to San Francisco?

    Yes. Cheapflights offers flight deals from Islip to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Islip to San Francisco that allow pets onboard?

    Many airlines flying from Islip to San Francisco offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Islip to San Francisco?

    Yes, you can often find last-minute deals on Islip to San Francisco flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • What is the cheapest month to book a flight from Islip, New York to San Francisco?

    Currently, September is the cheapest month in which you can book a flight from Islip, New York to San Francisco (average of $268). Flying from Islip, New York to San Francisco in June is currently the most expensive (average of $384). 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.

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