SFO - ISP

$97 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.
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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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Flights Deals

Cheap Flight Deals 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.

Recent round-trip flight deals from San Francisco to Islip

KAYAK's recommended round-trip deals from the most popular airlines that fly from San Francisco to Islip.
Discover the best prices for you by selecting your travel dates on KAYAK.
Frontier Logo
9:59 pm - 10:41 amSFO-ISP
9h 42m1 stop
Frontier Logo
9:06 pm - 10:28 amISP-SFO
16h 22m1 stop
$198Frontier
Find Deal
Tue, May 20 - Sat, May 24
Frontier Logo
9:59 pm - 10:12 amSFO-ISP
9h 13m1 stop
Frontier Logo
7:15 pm - 1:15 pmISP-SFO
21h 00m1 stop
$201Frontier
Find Deal
Sat, May 10 - Tue, May 13
Frontier Logo
9:59 pm - 10:12 amSFO-ISP
9h 13m1 stop
Frontier Logo
7:15 pm - 10:28 amISP-SFO
18h 13m1 stop
$211Frontier
Find Deal
Sun, May 18 - Wed, May 21
JetBlue Logo
9:10 pm - 9:51 amSFO-ISP
9h 41m1 stop
JetBlue Logo
2:39 pm - 11:40 pmISP-SFO
12h 01m1 stop
$367JetBlue
Find Deal
Tue, Jun 17 - Thu, Jun 26
JetBlue Logo
9:25 pm - 9:51 amSFO-ISP
9h 26m1 stop
JetBlue Logo
2:39 pm - 11:36 pmISP-SFO
11h 57m1 stop
$426JetBlue
Find Deal
Fri, Jul 11 - Tue, Jul 15
Southwest Logo
9:15 am - 10:50 pmSFO-ISP
10h 35m2 stops
Southwest Logo
6:45 am - 3:25 pmISP-SFO
11h 40m2 stops
$517Southwest
Find Deal
Tue, May 20 - Sun, May 25
 Logo
12:33 pm - 1:45 pmSFO-ISP
22h 12m2 stops
 Logo
8:21 pm - 10:28 amISP-SFO
17h 07m1 stop
Tue, May 20 - Sun, May 25
Breeze Airways Logo
12:24 pm - 6:59 pmSFO-ISP
27h 35m3 stops
Breeze Airways Logo
1:55 pm - 11:54 amISP-SFO
24h 59m3 stops
$694Breeze Airways
Find Deal
Wed, Aug 27 - Tue, Sep 2
 Logo
4:05 pm - 6:59 pmSFO-ISP
23h 54m3 stops
 Logo
7:25 pm - 5:20 pmISP-SFO
24h 55m2 stops
Wed, May 28 - Wed, Jun 4
Breeze Airways Logo
12:33 pm - 9:56 amSFO-ISP
18h 23m2 stops
Breeze Airways Logo
10:36 am - 11:48 amISP-SFO
28h 12m2 stops
$702Breeze Airways
Find Deal
Thu, Aug 28 - Mon, Sep 1
Useful Info

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 Frontier ($198) and JetBlue ($367).

Good to know

Cheapest flight$97
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 $97 for a one-way ticket and $198 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.

Top airline flying from San Francisco to Islip

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Islip. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco 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 4294 reviews
7.6Entertainment
8.0Comfort
8.2Boarding
8.6Crew
7.1Food
Airline reviews

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

10.0 ExcellentAnonymous, Apr 2025LGB - SMF
Read more Southwest reviews

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

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

I liked the crew member who gave flight instructions on "in case of a problem:. The seats are so small that only a young teenager could sit in middle seat.

My flight to Chicago left and landed early. My return flight left two minutes late and arrived 2 minutes late. My seat selections were ideal! There were no snacks going to Chicago and no snacks on the return trip. There are no charging outlets on board.

Great flight staff. Ease of boarding. Overall, very uneventful and easy trip.

Gate agents were informative and friendly… flight attendants were as well. Had a fun time chatting about their legacy AirTran experiences as a former fan of the airline that Southwest acquired.

Employees were kind and funny, as always! Flight was late but no announcements were made for people with tight connections to help them transition quickly. No service due to turbulence.

I recently flew Southwest from San Jose to Honolulu. I was very impressed with the flight crew, especially the flight attendant in charge of the front of the plane. She came through the aisle at least five times for drinks and water, and two times for snacks. I have not seen such service since I flew first class. Also, for the first time, they gave us the correct baggage claim number, and the luggage came out quickly. I can't wait for Southwest to have assigned seating! I absolutely hate the Cattle Call boarding procedure and the mad dash to get seats and overhead bins. However, the boarding was efficient.

We had a nice flight. Boarding was easy, our seats were comfortable and the on board service was pleasant.

Service was great, boarding and exiting went smoothly, and the flight was very pleasant.

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

Information on your arrival and departure airports

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