SAN - ISP

$337 Find Cheap Flights from San Diego to Islip

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Islip departing on 8/27. 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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Flights 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

Wed, Aug 27 - Wed, Sep 3
Southwest Logo
11:30 am - 10:05 pmSAN-ISP
7h 35m1 stop
Southwest Logo
4:00 pm - 9:45 pmISP-SAN
8h 45m1 stop
$337Southwest
Find Deal
Wed, Aug 27 - Wed, Sep 3
Southwest Logo
8:30 am - 10:05 pmSAN-ISP
10h 35m2 stops
Southwest Logo
4:00 pm - 9:45 pmISP-SAN
8h 45m1 stop
$342Southwest
Find Deal
Wed, Aug 27 - Wed, Sep 3
Southwest Logo
8:40 am - 10:05 pmSAN-ISP
10h 25m2 stops
Southwest Logo
6:05 am - 2:20 pmISP-SAN
11h 15m2 stops
$358Southwest
Find Deal
Fri, Sep 5 - Tue, Sep 9
Southwest Logo
11:00 am - 10:55 pmSAN-ISP
8h 55m1 stop
Southwest Logo
6:05 am - 10:30 amISP-SAN
7h 25m1 stop
$376Southwest
Find Deal
Fri, Sep 5 - Tue, Sep 9
Southwest Logo
11:00 am - 10:55 pmSAN-ISP
8h 55m1 stop
Southwest Logo
6:05 am - 2:20 pmISP-SAN
11h 15m2 stops
$381Southwest
Find Deal
Fri, Sep 5 - Tue, Sep 9
Southwest Logo
10:30 am - 10:55 pmSAN-ISP
9h 25m2 stops
Southwest Logo
6:05 am - 12:10 pmISP-SAN
9h 05m2 stops
$386Southwest
Find Deal
Sun, Sep 21 - Mon, Sep 29
Southwest Logo
1:00 pm - 11:50 pmSAN-ISP
7h 50m1 stop
Southwest Logo
3:05 pm - 10:35 pmISP-SAN
10h 30m2 stops
$415Southwest
Find Deal
Wed, Aug 27 - Wed, Sep 3
 Logo
10:30 pm - 3:21 pmSAN-ISP
13h 51m2 stops
 Logo
7:30 am - 7:46 pmISP-SAN
15h 16m3 stops
Wed, Aug 27 - Wed, Sep 3
Breeze Airways Logo
12:21 pm - 10:04 amSAN-ISP
42h 43m3 stops
Breeze Airways Logo
8:21 pm - 12:27 pmISP-SAN
43h 06m3 stops
$1,055Breeze Airways
Find Deal
Sun, Sep 21 - Mon, Sep 29
Breeze Airways Logo
1:21 pm - 8:07 pmSAN-ISP
27h 46m3 stops
Breeze Airways Logo
7:08 pm - 12:27 pmISP-SAN
44h 19m3 stops
$1,146Breeze Airways
Find Deal
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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 ($337) and Breeze Airways ($1,055).

Good to know

Cheapest flight$337
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 $337 for a round-trip ticket.

  • 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 4279 reviews
7.1Food
8.0Comfort
8.6Crew
8.2Boarding
7.6Entertainment
Airline reviews

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

10.0 ExcellentMichael, Jun 2025SMF - SEA
Read more Southwest reviews

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.

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.

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

Information on your arrival and departure airports

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