SAN - ISP

$174 Find Cheap Flights from San Diego to Islip - Compare and Save

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 9/10. 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

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Everything you should know

Cheapest round-trip
$347
Southwest
Sat 9/12Mon 9/14
SAN - ISP • 1 stop
Cheapest one-way
$174
Southwest
Thu 9/10
SAN - ISP • 1 stop
Top airlines
Cheapest • from $347 (round-trip)
Best reviews • 8.0 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

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 12 - Mon, Sep 14
Southwest Logo
7:35 am - 8:50 pmSAN  San Diego-ISP Islip Long Island
10h 15m1 stop Baltimore/Washington
Southwest Logo
4:05 pm - 10:50 pmISP  Islip Long Island-SAN San Diego
9h 45m1 stop Baltimore/Washington
$347Southwest
Thu, Sep 10 - Mon, Sep 14
Southwest Logo
10:40 pm - 9:40 amSAN  San Diego-ISP Islip Long Island
8h 00m1 stop Baltimore/Washington
Southwest Logo
4:05 pm - 10:50 pmISP  Islip Long Island-SAN San Diego
9h 45m1 stop Baltimore/Washington
$347Southwest
Sat, Sep 12 - Mon, Sep 14
Southwest Logo
8:40 am - 8:50 pmSAN  San Diego-ISP Islip Long Island
9h 10m2 stops Austin Bergstrom Baltimore/Washington
Southwest Logo
4:05 pm - 10:50 pmISP  Islip Long Island-SAN San Diego
9h 45m1 stop Baltimore/Washington
$352Southwest
Thu, Sep 10 - Mon, Sep 14
Southwest Logo
9:00 pm - 9:40 amSAN  San Diego-ISP Islip Long Island
9h 40m2 stops Phoenix Sky Harbor Intl Baltimore/Washington
Southwest Logo
4:05 pm - 10:50 pmISP  Islip Long Island-SAN San Diego
9h 45m1 stop Baltimore/Washington
$385Southwest
Fri, Sep 4 - Tue, Sep 15
Southwest Logo
11:45 am - 10:10 pmSAN  San Diego-ISP Islip Long Island
7h 25m1 stop Baltimore/Washington
Southwest Logo
12:55 pm - 6:55 pmISP  Islip Long Island-SAN San Diego
9h 00m2 stops Baltimore/Washington Dallas Love Field
$417Southwest
Fri, Sep 4 - Tue, Sep 15
Southwest Logo
10:40 pm - 12:05 pmSAN  San Diego-ISP Islip Long Island
10h 25m2 stops Nashville Intl Baltimore/Washington
Southwest Logo
12:55 pm - 6:55 pmISP  Islip Long Island-SAN San Diego
9h 00m2 stops Baltimore/Washington Dallas Love Field
$422Southwest
Fri, Sep 11 - Sun, Sep 13
Southwest Logo
8:25 am - 10:10 pmSAN  San Diego-ISP Islip Long Island
10h 45m2 stops Dallas Love Field Baltimore/Washington
Southwest Logo
10:30 am - 8:15 pmISP  Islip Long Island-SAN San Diego
12h 45m1 stop Tampa
$427Southwest
Fri, Sep 11 - Sun, Sep 13
Southwest Logo
10:40 pm - 12:05 pmSAN  San Diego-ISP Islip Long Island
10h 25m1 stop Baltimore/Washington
Southwest Logo
10:30 am - 8:15 pmISP  Islip Long Island-SAN San Diego
12h 45m1 stop Tampa
$427Southwest
Thu, Aug 20 - Mon, Aug 24
Multiple Airlines Logo
6:25 am - 1:28 pmSAN  San Diego-ISP Islip Long Island
28h 03m2 stops Denver Intl Raleigh-Durham
Multiple Airlines Logo
2:28 pm - 12:09 pmISP  Islip Long Island-SAN San Diego
24h 41m1 stop Raleigh-Durham
$499Multiple Airlines
Thu, Aug 20 - Mon, Aug 24
Breeze Airways Logo
12:09 pm - 1:28 pmSAN  San Diego-ISP Islip Long Island
22h 19m1 stop Raleigh-Durham
Breeze Airways Logo
2:28 pm - 12:09 pmISP  Islip Long Island-SAN San Diego
24h 41m1 stop Raleigh-Durham
$523Breeze Airways
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 ($347) and Breeze Airways ($523).

Good to know

Cheapest flight

$174
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 $174 for a one-way ticket and $347 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 4217 reviews
8.6Crew
8.0Comfort
7.0Food
7.5Entertainment
8.1Boarding
Airline reviews

Red eye from San Diego. Temperature of the cabin was way too warm and the air duct flowed very little air.

6.0 GoodGordon, Jul 2026
Read more Southwest reviews

Red eye from San Diego. Temperature of the cabin was way too warm and the air duct flowed very little air.

Great job Southwest! My family doesn't fly often but we felt safe the whole time.

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

The charges were ridiculous for an hour flight and the turbulence was very scary.

The seats are now more narrow. I paid for front row the seats in the front are even more narrow than before.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

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.

There was over a 9 hour delay for one thing after another. A toilet problem, they had to change the brakes, they had to refuel, three pilots times out, etc. We had to sit on the plane at the gate for over 5 hours with no air.

Unfortunately it was not a good experience. There was a rude stewardess.

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

Information on your arrival and departure airports