SFO - ISP

$186 Find Cheap Flights from San Francisco to Islip

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Islip departing on 5/7. 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, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Islip, 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 San Francisco to Islip, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$412
Southwest
Tue 3/17Sat 3/21
SFO - ISP • 2 stops
Cheapest one-way
$186
Frontier
Thu 5/7
SFO - ISP • 2 stops
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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 Islip!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Islip 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 San Francisco to Islip

Tue, Mar 17 - Sat, Mar 21
Southwest Logo
9:35 am - 10:50 pm
SFO
-
ISP
10h 15m
2 stops
Southwest Logo
5:50 pm - 11:55 pm
ISP
-
SFO
9h 05m
1 stop
$412Southwest
Tue, Mar 17 - Sat, Mar 21
Southwest Logo
7:55 am - 10:50 pm
SFO
-
ISP
11h 55m
2 stops
Southwest Logo
6:00 am - 4:30 pm
ISP
-
SFO
13h 30m
2 stops
$417Southwest
Sat, Apr 18 - Fri, Apr 24
Southwest Logo
6:15 am - 11:20 pm
SFO
-
ISP
14h 05m
2 stops
Southwest Logo
4:30 pm - 11:20 pm
ISP
-
SFO
9h 50m
1 stop
$425Southwest
Sat, Apr 18 - Fri, Apr 24
Southwest Logo
6:15 am - 11:20 pm
SFO
-
ISP
14h 05m
2 stops
Southwest Logo
12:30 pm - 8:00 pm
ISP
-
SFO
10h 30m
2 stops
$430Southwest
Sun, Apr 19 - Fri, Apr 24
Southwest Logo
11:25 pm - 11:50 am
SFO
-
ISP
9h 25m
2 stops
Southwest Logo
4:30 pm - 11:20 pm
ISP
-
SFO
9h 50m
1 stop
$452Southwest
Sun, Apr 19 - Fri, Apr 24
Southwest Logo
11:25 pm - 11:50 am
SFO
-
ISP
9h 25m
2 stops
Southwest Logo
4:30 pm - 12:10 am
ISP
-
SFO
10h 40m
2 stops
$457Southwest
Wed, Mar 4 - Wed, Mar 11
Southwest Logo
9:30 pm - 11:40 am
SFO
-
ISP
11h 10m
1 stop
Southwest Logo
4:40 pm - 10:05 pm
ISP
-
SFO
8h 25m
1 stop
$472Southwest
Wed, Mar 4 - Wed, Mar 11
Southwest Logo
7:40 am - 9:55 pm
SFO
-
ISP
11h 15m
2 stops
Southwest Logo
12:20 pm - 10:05 pm
ISP
-
SFO
12h 45m
2 stops
$477Southwest
Thu, May 14 - Sun, May 17
Southwest Logo
9:15 pm - 11:50 am
SFO
-
ISP
11h 35m
1 stop
Southwest Logo
11:50 am - 11:20 pm
ISP
-
SFO
14h 30m
1 stop
$494Southwest
Thu, May 14 - Sun, May 17
Southwest Logo
9:15 pm - 11:50 am
SFO
-
ISP
11h 35m
1 stop
Southwest Logo
11:50 am - 11:20 pm
ISP
-
SFO
14h 30m
1 stop
$509Southwest
Booking Insights

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

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

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

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 San Francisco to Islip were found on Southwest ($412) and Breeze Airways ($874).

Find deals

Good to know

Cheapest flight$186
Flight from San Francisco to Islip

When to book flights from San Francisco to Islip

Are your dates flexible? Find out the best times to travel from San Francisco to Islip 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 San Francisco to Islip

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

    In the last 3 days, the lowest price for a flight from San Francisco to Islip was $186 for a one-way ticket and $412 for a round-trip.

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

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

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

    When flying out of San Francisco you will be using San Francisco. You will be landing at Islip, also known as Islip Long Island.

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

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

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

    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 San Francisco to Islip.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from San Francisco 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 San Francisco to Islip?

    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 Islip with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and ISP 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 San Francisco to Islip?

    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 Islip from San Francisco 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 San Francisco to Islip

Information on your arrival and departure airports

San Francisco (SFO)
Islip (ISP)