SAN - ISP

$176 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 8/10. 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
$351
Southwest
Sat 9/5Sat 9/12
SAN - ISP • 1 stop
Cheapest one-way
$176
Southwest
Mon 8/10
SAN - ISP • 1 stop
Top airlines
Southwest
Cheapest • from $351 (round-trip)
Southwest
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San Diego and Islip. You'll need at least 1 connection.
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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

Sat, Sep 5 - Sat, Sep 12
Southwest Logo
10:30 am - 8:45 pm
SAN
-
ISP
7h 15m
1 stop
Southwest Logo
3:15 pm - 8:30 pm
ISP
-
SAN
8h 15m
1 stop
$351Southwest
Sat, Sep 5 - Sat, Sep 12
Southwest Logo
10:30 am - 8:45 pm
SAN
-
ISP
7h 15m
1 stop
Southwest Logo
11:55 am - 8:20 pm
ISP
-
SAN
11h 25m
2 stops
$356Southwest
Sat, Sep 5 - Sat, Sep 12
Southwest Logo
10:40 pm - 12:45 pm
SAN
-
ISP
11h 05m
2 stops
Southwest Logo
11:55 am - 7:55 pm
ISP
-
SAN
11h 00m
2 stops
$361Southwest
Thu, Jul 16 - Wed, Jul 22
Southwest Logo
9:55 pm - 10:30 am
SAN
-
ISP
9h 35m
1 stop
Southwest Logo
4:40 pm - 11:30 pm
ISP
-
SAN
9h 50m
1 stop
$409Southwest
Thu, Jul 16 - Wed, Jul 22
Southwest Logo
7:30 pm - 8:20 am
SAN
-
ISP
9h 50m
2 stops
Southwest Logo
4:40 pm - 11:30 pm
ISP
-
SAN
9h 50m
1 stop
$414Southwest
Fri, Aug 21 - Mon, Aug 24
Southwest Logo
11:45 am - 10:05 pm
SAN
-
ISP
7h 20m
1 stop
Southwest Logo
4:05 pm - 10:45 pm
ISP
-
SAN
9h 40m
1 stop
$424Southwest
Fri, Aug 21 - Mon, Aug 24
Southwest Logo
11:45 am - 10:05 pm
SAN
-
ISP
7h 20m
1 stop
Southwest Logo
4:05 pm - 9:55 pm
ISP
-
SAN
8h 50m
2 stops
$429Southwest
Fri, Aug 21 - Mon, Aug 24
Southwest Logo
10:10 am - 10:05 pm
SAN
-
ISP
8h 55m
2 stops
Southwest Logo
4:05 pm - 9:55 pm
ISP
-
SAN
8h 50m
2 stops
$434Southwest
Thu, Jul 16 - Wed, Jul 22
Southwest Logo
8:05 pm - 8:20 am
SAN
-
ISP
9h 15m
2 stops
Southwest Logo
6:00 am - 1:45 pm
ISP
-
SAN
10h 45m
2 stops
$457Southwest
Sat, Jul 18 - Mon, Jul 27
Southwest Logo
9:55 pm - 10:05 am
SAN
-
ISP
9h 10m
1 stop
Southwest Logo
3:05 pm - 10:30 pm
ISP
-
SAN
10h 25m
2 stops
$472Southwest
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 5 days.

In the past 5 days, the cheapest round-trip tickets from San Diego to Islip were found on Southwest ($351) and Breeze Airways ($778).

Find deals

Good to know

Cheapest flight$176
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 5 days, the lowest price for a flight from San Diego to Islip was $176 for a one-way ticket and $351 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.
7.9
SouthwestOverall score based on 4237 reviews
8.1Boarding
7.0Food
8.0Comfort
7.5Entertainment
8.6Crew
Airline reviews

Was fine, delayed and feels like southwest is always late

6.0 GoodAnonymous, Jun 2026
SMF - LAS
Read more Southwest reviews

Was fine, delayed and feels like southwest is always late

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

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

Information on your arrival and departure airports

San Diego (SAN)
Islip (ISP)