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

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How to find the cheapest flight from
Islip (ISP) to San Francisco (SFO)

ISP - SFO
Price
$254 - $678
SFO
Temperature
59 - 77 °F
SFO
Rainfall
0 - 4.7 inches
Popular in November High demand for flights, 34% potential price rise
Cheapest in April Best time to find cheap flights, 43% potential price drop
Round-trip from $254 From Islip to San Francisco
One-way from $86 One-way flight from Islip to San Francisco
Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Islip to San Francisco?

Departing on a Tuesday is a good option for securing a great price. You can expect to save up to 194% when planning your travel around this day of the week.

How far in advance should I book a flight from Islip to San Francisco?

Travelers have found it’s best to book a flight 44 days in advance to save up to 20% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 44 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Islip to San Francisco 1-2 weeks in advance for as low as $117, or $137 for flights within the next 24 hours.

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

Due to multiple factors, expect to potentially pay more when booking in April. For low rates, February can be a great choice for travel to San Francisco. Flights to San Francisco from Islip in February are about $121 on average during February, but can be found for as low as $61.

When is the cheapest time to fly from Islip to San Francisco (ISP - SFO)?

Unlike in the morning, when flights are generally more expensive, you can save up to 46% on flights from Islip to San Francisco by exploring options for tickets in the afternoon.

Cheap flights from Islip to San Francisco in August, September 2020

The best prices found for ISP to SFO flights for August, September
6 Aug - 14 Aug
$267pp
ISP
Islip Long Island
Multiple Airlines
     
3 STOPS
SFO
San Francisco
SFO
San Francisco
Frontier
   
2 STOPS
ISP
Islip Long Island
6 Aug - 12 Aug
$274pp
ISP
Islip Long Island
Multiple Airlines
     
3 STOPS
SFO
San Francisco
SFO
San Francisco
Frontier
   
2 STOPS
ISP
Islip Long Island
7 Aug - 12 Aug
$286pp
ISP
Islip Long Island
Multiple Airlines
     
3 STOPS
SFO
San Francisco
SFO
San Francisco
Multiple Airlines
   
2 STOPS
ISP
Islip Long Island

Islip to San Francisco 2020 flight deals

Cheap flights to San Francisco from Islip found for this year
6 Aug - 14 Aug
$267pp
ISP
Islip Long Island
Multiple Airlines
     
3 STOPS
SFO
San Francisco
SFO
San Francisco
Frontier
   
2 STOPS
ISP
Islip Long Island
6 Aug - 12 Aug
$274pp
ISP
Islip Long Island
Multiple Airlines
     
3 STOPS
SFO
San Francisco
SFO
San Francisco
Frontier
   
2 STOPS
ISP
Islip Long Island
7 Aug - 12 Aug
$286pp
ISP
Islip Long Island
Multiple Airlines
     
3 STOPS
SFO
San Francisco
SFO
San Francisco
Multiple Airlines
   
2 STOPS
ISP
Islip Long Island

One-way flights to San Francisco from Islip

The cheapest one-way flights from Islip to San Francisco
2:25 pm - 3:59 am
Multiple Airlines
3 Stops
40h 34m
ISP - SFO
Multiple Airlines
$86
Kiwi.com
2:09 pm - 4:05 am
Multiple Airlines
3 Stops
40h 56m
ISP - SFO
Multiple Airlines
$89
Kiwi.com
11:03 am - 4:05 am
Multiple Airlines
3 Stops
44h 02m
ISP - SFO
Multiple Airlines
$94
Kiwi.com

Related info for your journey

Useful info, stats and facts about Islip to San Francisco flights.

Flight FAQs

From Islip to San Francisco

Are flight prices decreasing from Islip to San Francisco due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Islip and San Francisco for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from Islip to San Francisco for under $300 on Cheapflights?

Yes, there are multiple flights from Islip to San Francisco for under $300. The cheapest flight booked recently is on Multiple Airlines for just $249, but on average you can expect to pay $266.

Are there nonstop flights from Islip to San Francisco for under $200 on Cheapflights?

There are no nonstop flights from Islip to San Francisco, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

What days are nonstop flights available from Islip to San Francisco?

Days when nonstop flights are available for this flight are: Thursday.

Does it rain more in Islip or San Francisco?

The rainfall in Islip is generally less than the rainfall in San Francisco. This will continue over the next 13 days.

Is Islip weather warmer or cooler than San Francisco?

We forecast the temperature to be around the 84 °F's in July, on average. The temperature in San Francisco is generally colder than in Islip. Book flights in a timely manner in correlation to your departure date.

Alternative routes for Islip to San Francisco

Destination information for San Francisco

Things to know before you go. Useful info for your trip from Islip to San Francisco
Average temperature for August in San Francisco
73.4 °F

Airports servicing Islip

Airports servicing San Francisco

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