ISP

$125 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 6/9. 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

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Flight Deals

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

Tue, Jul 7 - Wed, Jul 15
Frontier Logo
8:51 pm - 9:58 am
SFO
-
ISP
10h 07m
1 stop
Frontier Logo
10:48 am - 10:15 am
ISP
-
SFO
26h 27m
1 stop
$270Frontier
Fri, Aug 21 - Mon, Aug 24
Frontier Logo
8:51 pm - 10:03 am
SFO
-
ISP
10h 12m
1 stop
Frontier Logo
10:48 am - 10:29 am
ISP
-
SFO
26h 41m
1 stop
$335Frontier
Tue, Jun 9 - Mon, Jun 15
Frontier Logo
8:51 pm - 10:03 am
SFO
-
ISP
10h 12m
1 stop
Frontier Logo
10:48 am - 10:34 am
ISP
-
SFO
26h 46m
1 stop
$355Frontier
Wed, May 27 - Mon, Jun 1
Southwest Logo
10:40 pm - 11:50 am
SFO
-
ISP
10h 10m
2 stops
Southwest Logo
4:30 pm - 11:20 pm
ISP
-
SFO
9h 50m
1 stop
$396Southwest
Wed, May 27 - Mon, Jun 1
Southwest Logo
9:15 pm - 11:50 am
SFO
-
ISP
11h 35m
1 stop
Southwest Logo
4:30 pm - 11:20 pm
ISP
-
SFO
9h 50m
1 stop
$404Southwest
Fri, Jun 12 - Sun, Jun 14
Frontier Logo
8:51 pm - 10:03 am
SFO
-
ISP
10h 12m
1 stop
Frontier Logo
10:48 am - 10:34 am
ISP
-
SFO
26h 46m
1 stop
$415Frontier
Wed, May 27 - Mon, Jun 1
Frontier Logo
11:36 am - 10:05 am
SFO
-
ISP
19h 29m
2 stops
Frontier Logo
11:00 am - 12:23 am
ISP
-
SFO
40h 23m
2 stops
$424Frontier
Wed, May 27 - Mon, Jun 1
Southwest Logo
10:40 pm - 11:50 am
SFO
-
ISP
10h 10m
2 stops
Southwest Logo
6:00 am - 3:25 pm
ISP
-
SFO
12h 25m
2 stops
$435Southwest
Wed, May 27 - Mon, Jun 1
Southwest Logo
7:20 am - 10:10 pm
SFO
-
ISP
11h 50m
2 stops
Southwest Logo
4:30 pm - 11:20 pm
ISP
-
SFO
9h 50m
1 stop
$438Southwest
Wed, Jun 17 - Tue, Jun 23
Frontier Logo
8:51 pm - 10:03 am
SFO
-
ISP
10h 12m
1 stop
Frontier Logo
4:41 pm - 10:34 am
ISP
-
SFO
20h 53m
1 stop
$444Frontier
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$125
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 4% 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 4314 reviews
8.0Comfort
7.5Entertainment
7.0Food
8.1Boarding
8.6Crew
Airline reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

10.0 Excellentlarry, Apr 2026
LGB - PHX
Read more Southwest reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

Terrible. Even though there’s assigned seating now, they are still the slowest boarding airline of anyone.

It was good from LAX to Phoenix, But the connection in Phoenix to Tulsa was not that great. The staff on both flights were great. The choice of free entertainment was ok nothing to brag about. The 45 min delay because of some electrical issue wasn't great from Phoenix to Tulsa. We sat there with hardly any air, The seat I had was between windows so the side of the plane pushed in on you. My being a bigger man it then made the seating area uncomfortable. The seats on the plane had no power to connect to recharge your phone or anything. I would recommend that they should look into a slot or clamp to hold your phone to enjoy while watching the entertainment choices hands-free. Also make it possible to raise the inner seat by the window be able to raise the arm rest up to make more room for larger people to set more comfortably. I would also say other then that stop price gouging the airfare or nickel and diming everything. Not fair for people having to fly for emergencies and be paying for higher prices due to the season or holidays. Your making your money either way and the cost of flying is still going to be the same regardless if there's 100 people or 200 people.

Had a great flight. Delayed takeoff, but comfortable. Snacks were good.

Southwest was greaat! The most expensive but the least upsetting for those we were flying to see.

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

Traveling to a place near Islip?

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