ISP

$174 Find Cheap Flights from San Francisco Bay Area 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 to Islip departing on 10/14. 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

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Cheap Flights from San Francisco Bay Area to Islip

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

Mon, Nov 3 - Sun, Nov 16
Frontier Logo
10:23 pm - 5:42 pmSFO-ISP
16h 19m2 stops
Frontier Logo
9:27 pm - 12:15 pmISP-SFO
17h 48m2 stops
$246Frontier
Find Deal
Mon, Oct 27 - Mon, Nov 3
Frontier Logo
4:55 pm - 10:37 amSFO-ISP
38h 42m2 stops
Frontier Logo
4:58 pm - 10:27 pmISP-SFO
32h 29m2 stops
$249Frontier
Find Deal
Wed, Oct 29 - Tue, Nov 4
JetBlue Logo
9:44 pm - 1:02 pmSFO-ISP
12h 18m1 stop
JetBlue Logo
1:57 pm - 11:31 pmISP-SFO
12h 34m1 stop
$297JetBlue
Find Deal
Sun, Nov 2 - Wed, Nov 5
JetBlue Logo
9:44 pm - 1:02 pmSFO-ISP
12h 18m1 stop
JetBlue Logo
4:25 pm - 11:31 pmISP-SFO
10h 06m1 stop
$351JetBlue
Find Deal
Tue, Oct 14 - Tue, Oct 21
Multiple Airlines Logo
7:00 am - 8:42 pmSFO-ISP
10h 42m1 stop
Multiple Airlines Logo
9:37 pm - 10:53 pmISP-SFO
28h 16m1 stop
$384Multiple Airlines
Find Deal
Tue, Oct 14 - Tue, Oct 21
Southwest Logo
9:05 pm - 12:25 pmSFO-ISP
12h 20m1 stop
Southwest Logo
11:40 am - 8:25 pmISP-SFO
11h 45m2 stops
$403Southwest
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Sun, Nov 2 - Wed, Nov 5
Southwest Logo
9:25 pm - 12:15 pmSFO-ISP
11h 50m1 stop
Southwest Logo
12:55 pm - 9:15 pmISP-SFO
11h 20m2 stops
$424Southwest
Find Deal
Thu, Oct 30 - Mon, Nov 3
Breeze Airways Logo
12:50 pm - 8:07 pmSFO-ISP
28h 17m2 stops
Breeze Airways Logo
8:47 pm - 12:05 pmISP-SFO
18h 18m2 stops
$653Breeze Airways
Find Deal
Sat, Dec 6 - Mon, Dec 8
Breeze Airways Logo
12:39 pm - 1:39 pmSFO-ISP
22h 00m1 stop
Breeze Airways Logo
8:47 pm - 12:05 pmISP-SFO
18h 18m2 stops
$657Breeze Airways
Find Deal
Mon, Oct 20 - Wed, Oct 22
Multiple Airlines Logo
8:05 pm - 4:15 pmOAK-ISP
17h 10m2 stops
Multiple Airlines Logo
7:30 am - 12:03 amISP-OAK
43h 33m2 stops
$1,015Multiple Airlines
Find Deal

Everything you should know

Cheapest round-trip
$246
Frontier
Mon 11/3Sun 11/16
SFO - ISP • 2 stops
Cheapest one-way
$174
Southwest
Tue 10/14
SFO - ISP • 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 Islip!
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$174
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from San Francisco to Islip

FAQs for booking flights from San Francisco Bay Area to Islip

  • How does KAYAK find such low prices on flights from San Francisco Bay Area 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 Bay Area to Islip.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from San Francisco Bay Area 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 Bay Area 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 Bay Area with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco Bay Area 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 Bay Area up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from San Francisco Bay Area to Islip

 
Need help choosing which airline to fly with from San Francisco Bay Area to Islip? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4242 reviews
8.0Comfort
7.0Food
8.6Crew
8.1Boarding
7.5Entertainment
Airline reviews

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

10.0 ExcellentRobert, Sep 2025SFO - LAS
Read more Southwest reviews

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

The cabin was quiet for the redeye flight. The area was clean. The staff was great. The 787 Max was in good condition. Drawbacks were that the seat widths were tight for some passengers. The seat padding was at best average and for a long flight uncomfortable.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

after landing, we stay 2 hours on the taxi way before reaching the gate The airline and the crew were good though

No trays in our seats, we sat in first row, purchased a business class fare. Had to hold our drinks and snack in our hands. No plugs for our cell phones. Had to pay for it a drink cocktail each. Seats so uncomfortable.

Flight wasn’t even full, but too many carry-ons caused us to run out of bin space. New bag fee has folks who would usually check their bags carrying on. Watching Southwest morph into Spirit/Frontier is so sad to watch

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

It was a perfect flight in all aspects! Both legs!

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

Traveling to a place near Islip?

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Everything you need to know for your flight to Islip

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