SAN - ISP

$180 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 12/10. 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 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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Everything you should know

Cheapest round-trip
$472
Southwest
Sun 12/28Thu 1/1
SAN - ISP • 1 stop
Cheapest one-way
$180
Southwest
Wed 12/10
SAN - ISP • 1 stop
Top airlines
Southwest
Cheapest • from $472 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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Flight Deals
Booking Insights
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

Sun, Dec 28 - Thu, Jan 1
Southwest Logo
6:20 am - 5:15 pmSAN-ISP
7h 55m1 stop
Southwest Logo
5:40 am - 1:20 pmISP-SAN
10h 40m2 stops
$472Southwest
Find Deal
Sun, Dec 28 - Thu, Jan 1
Southwest Logo
6:20 am - 5:15 pmSAN-ISP
7h 55m1 stop
Southwest Logo
12:55 pm - 9:35 pmISP-SAN
11h 40m1 stop
$494Southwest
Find Deal
Sun, Dec 28 - Thu, Jan 1
Southwest Logo
10:10 am - 11:55 pmSAN-ISP
10h 45m2 stops
Southwest Logo
5:40 am - 1:20 pmISP-SAN
10h 40m2 stops
$513Southwest
Find Deal
Mon, Dec 22 - Sat, Jan 3
Southwest Logo
10:50 am - 11:55 pmSAN-ISP
10h 05m1 stop
Southwest Logo
5:30 am - 10:50 amISP-SAN
8h 20m1 stop
$602Southwest
Find Deal
Mon, Dec 22 - Sat, Jan 3
Southwest Logo
8:35 am - 11:55 pmSAN-ISP
12h 20m2 stops
Southwest Logo
5:30 am - 10:50 amISP-SAN
8h 20m1 stop
$607Southwest
Find Deal
Mon, Dec 22 - Sat, Jan 3
Southwest Logo
8:35 am - 11:55 pmSAN-ISP
12h 20m2 stops
Southwest Logo
5:30 am - 1:05 pmISP-SAN
10h 35m2 stops
$622Southwest
Find Deal
Wed, Nov 26 - Sun, Nov 30
Multiple Airlines Logo
1:12 pm - 6:56 pmSAN-ISP
26h 44m1 stop
Multiple Airlines Logo
8:25 pm - 3:27 pmISP-SAN
22h 02m2 stops
$659Multiple Airlines
Find Deal
Wed, Nov 26 - Sun, Nov 30
Southwest Logo
11:45 am - 11:55 pmSAN-ISP
9h 10m2 stops
Southwest Logo
5:40 am - 12:55 pmISP-SAN
10h 15m2 stops
$866Southwest
Find Deal
Wed, Nov 26 - Sun, Nov 30
Breeze Airways Logo
1:12 pm - 6:56 pmSAN-ISP
26h 44m1 stop
Breeze Airways Logo
7:36 pm - 12:27 pmISP-SAN
19h 51m1 stop
$1,042Breeze Airways
Find Deal
Wed, Nov 26 - Sun, Nov 30
Breeze Airways Logo
1:12 pm - 6:28 pmSAN-ISP
50h 16m2 stops
Breeze Airways Logo
2:19 pm - 12:27 pmISP-SAN
25h 08m3 stops
$2,665Breeze Airways
Find Deal
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 ($472) and Breeze Airways ($1,042).

Which airlines fly non-stop between San Diego and Islip?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from San Diego to Islip.

There is just one airline that flies from San Diego to Islip direct and that is Southwest. The best round-trip deal found from Southwest for the route is $385.

Good to know

Cheapest flight$180
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 $180 for a one-way ticket and $472 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 4243 reviews
7.5Entertainment
8.1Boarding
7.0Food
8.6Crew
8.0Comfort
Airline reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

8.0 ExcellentGreg, Oct 2025OAK - BUR
Read more Southwest reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

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.

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

Information on your arrival and departure airports

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