SAN - ISP

$183 Find Cheap Flights from San Diego 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 Diego to Islip departing on 9/29. 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 Islip

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

Cheap Flights from San Diego to Islip (SAN-ISP)

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

Tue, Dec 23 - Sat, Dec 27
Southwest Logo
9:45 pm - 12:15 pmSAN-ISP
11h 30m1 stop
Southwest Logo
5:55 pm - 11:00 pmISP-SAN
8h 05m1 stop
$712Southwest
Find Deal
Tue, Dec 23 - Sat, Dec 27
Southwest Logo
9:45 pm - 12:15 pmSAN-ISP
11h 30m1 stop
Southwest Logo
10:20 am - 7:20 pmISP-SAN
12h 00m2 stops
$718Southwest
Find Deal
Tue, Dec 23 - Sat, Dec 27
Southwest Logo
8:30 am - 11:55 pmSAN-ISP
12h 25m2 stops
Southwest Logo
10:20 am - 7:20 pmISP-SAN
12h 00m2 stops
$763Southwest
Find Deal
Sun, Sep 28 - Thu, Oct 2
Breeze Airways Logo
1:21 pm - 1:45 pmSAN-ISP
21h 24m1 stop
Breeze Airways Logo
7:36 pm - 12:27 pmISP-SAN
19h 51m1 stop
$814Breeze Airways
Find Deal
Tue, Dec 23 - Sat, Dec 27
Breeze Airways Logo
1:21 pm - 11:00 amSAN-ISP
42h 39m3 stops
Breeze Airways Logo
5:54 pm - 12:27 pmISP-SAN
45h 33m2 stops
$1,801Breeze Airways
Find Deal
Tue, Dec 23 - Sat, Dec 27
Breeze Airways Logo
1:21 pm - 11:00 amSAN-ISP
42h 39m3 stops
Breeze Airways Logo
12:00 pm - 12:36 pmISP-SAN
27h 36m3 stops
$2,005Breeze Airways
Find Deal

Everything you should know

Top airlines
Southwest
Cheapest • from $712 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$712
Southwest
Tue 12/23Sat 12/27
SAN - ISP • 1 stop
Cheapest one-way
$183
Multiple Airlines
Mon 9/29
SAN - ISP • 3 stops
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Islip!
Booking Insights

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

Get data-powered insights and trends into flights from San Diego 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 Diego 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 Diego to Islip were found on Southwest ($712) and Breeze Airways ($814).

Good to know

Cheapest flight$183
Flight from San Diego to Islip

When to book flights from San Diego to Islip

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

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

    In the last 3 days, the lowest price for a flight from San Diego to Islip was $183 for a one-way ticket and $712 for a round-trip.

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

    No

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

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

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

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

  • How does KAYAK find such low prices on flights from San Diego 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 Diego to Islip.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from San Diego 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 Diego 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 Diego with another airline. Booking your flights between San Diego 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 Diego 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 Diego 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 Diego to Islip

 
See real verified KAYAK customer reviews for airlines flying from San Diego 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 Diego 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
8.6Crew
8.1Boarding
7.5Entertainment
8.0Comfort
7.0Food
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.

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

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