ISP - SFO

$149 Find Cheap Flights from Islip to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to San Francisco departing on 10/27. 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.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to San Francisco, as well as popular online travel agencies
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Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Islip to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Islip to San Francisco

Sun, Nov 9 - Thu, Nov 13
Frontier Logo
9:27 pm - 12:15 pmISP-SFO
17h 48m2 stops
Frontier Logo
1:10 pm - 10:37 amSFO-ISP
18h 27m2 stops
$278Frontier
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Sat, Oct 4 - Mon, Oct 13
Frontier Logo
5:05 pm - 8:15 amISP-SFO
18h 10m2 stops
Frontier Logo
10:23 pm - 8:42 pmSFO-ISP
19h 19m2 stops
$299Frontier
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Mon, Oct 27 - Fri, Oct 31
JetBlue Logo
1:57 pm - 11:31 pmISP-SFO
12h 34m1 stop
JetBlue Logo
9:44 pm - 1:02 pmSFO-ISP
12h 18m1 stop
$352JetBlue
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Fri, Jan 16 - Wed, Jan 21
JetBlue Logo
12:05 pm - 11:33 pmISP-SFO
14h 28m1 stop
JetBlue Logo
10:40 pm - 11:20 amSFO-ISP
9h 40m1 stop
$572JetBlue
Find Deal
Sun, Oct 12 - Sun, Oct 19
Southwest Logo
5:25 am - 3:00 pmISP-SFO
12h 35m2 stops
Southwest Logo
7:10 am - 11:50 pmSFO-ISP
13h 40m2 stops
$588Southwest
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Sun, Oct 12 - Sun, Oct 19
Southwest Logo
5:25 am - 3:00 pmISP-SFO
12h 35m2 stops
Southwest Logo
9:05 pm - 11:50 amSFO-ISP
11h 45m1 stop
$628Southwest
Find Deal
Wed, Oct 1 - Tue, Oct 7
Breeze Airways Logo
8:21 pm - 12:05 pmISP-SFO
18h 44m2 stops
Breeze Airways Logo
12:50 pm - 7:41 pmSFO-ISP
27h 51m2 stops
$672Breeze Airways
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Wed, Oct 1 - Wed, Oct 8
Breeze Airways Logo
8:21 pm - 12:05 pmISP-SFO
18h 44m2 stops
Breeze Airways Logo
12:39 pm - 1:39 pmSFO-ISP
22h 00m1 stop
$675Breeze Airways
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Thu, Sep 25 - Sun, Sep 28
Multiple Airlines Logo
2:19 pm - 11:59 pmISP-SFO
12h 40m2 stops
Multiple Airlines Logo
8:19 pm - 10:58 amSFO-ISP
11h 39m2 stops
$941Multiple Airlines
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Mon, Sep 29 - Fri, Oct 3
Multiple Airlines Logo
4:33 pm - 11:52 pmISP-SFO
10h 19m1 stop
Multiple Airlines Logo
6:45 pm - 3:21 pmSFO-ISP
17h 36m2 stops
$979Multiple Airlines
Find Deal

Everything you should know

Cheapest round-trip
$278
Frontier
Sun 11/9Thu 11/13
ISP - SFO • 2 stops
Cheapest one-way
$149
JetBlue
Mon 10/27
ISP - SFO • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Francisco!
Booking Insights

KAYAK's insights & trends for Islip to San Francisco flights

Get data-powered insights and trends into flights from Islip to San Francisco to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Islip to San Francisco?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Islip to San Francisco were found on Frontier ($278) and JetBlue ($352).

Find deals

Good to know

Cheapest flight$149
Flight from Islip to San Francisco

When to book flights from Islip to San Francisco

Are your dates flexible? Find out the best times to travel from Islip to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Islip to San Francisco

  • What is the cheapest flight from Islip to San Francisco?

    In the last 3 days, the lowest price for a flight from Islip to San Francisco was $149 for a one-way ticket and $278 for a round-trip.

  • Do I need a passport to fly between Islip and San Francisco?

    A passport is not required to fly from Islip to San Francisco.

  • Which airports will I be using when flying from Islip to San Francisco?

    Islip airport is called Islip Long Island and the only airport in San Francisco is San Francisco.

  • Which aircraft models fly most regularly from Islip to San Francisco?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Islip to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Islip to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Islip to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Islip is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Islip to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Islip with another airline. Booking your flights between Islip and SFO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Islip to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Islip up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Islip to San Francisco

Information on your arrival and departure airports

Islip (ISP)
San Francisco (SFO)

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