What airlines fly to Islip, New York?

United Airlines, American Airlines and Alaska Airlines are the top three most popular airlines that fly to Islip, New York from San Diego according to our data. United Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Islip, New York. Keep in mind that there are 9 different airlines that fly to Islip, New York on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from San Diego Airport to Islip Long Island Airport?

Prices for flights from San Diego Airport to Islip Long Island Airport refresh daily.

How many operators does momondo search for flights from San Diego Airport to Islip Long Island Airport?

As of December 2025, there is 1 operator available to choose from for flights from San Diego Airport to Islip Long Island Airport.

How old do you have to be to fly from San Diego Airport to Islip Long Island Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to Islip Long Island Airport.

What documentation or ID do you need to fly to Islip Long Island Airport?

The travel and health documents you'll need for your trip to Islip Long Island Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Islip Long Island Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$390 Cheap Flights from San Diego to Islip in 2025/26

1 adult

0 bags

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SAN

ISP

2475 mimulti-stop

ISP

SAN

2475 mimulti-stop

Multiple Airlines

Southwest flights from San Diego to Islip, New York

Our best Southwest deals on San Diego to Islip, New York flight tickets

Southwest

Apr 15

SAN6:20 amSan Diego

9h 10m

1 stop

ISP6:30 pmIslip Long Island

Apr 20

ISP4:30 pmIslip Long Island

8h 30m

1 stop

SAN10:00 pmSan Diego

$417

Find similar

Southwest

Apr 15

SAN6:20 amSan Diego

9h 10m

1 stop

ISP6:30 pmIslip Long Island

Apr 20

ISP6:00 amIslip Long Island

9h 40m

2 stops

SAN12:40 pmSan Diego

$422

Find similar

Southwest

Apr 15

SAN10:40 pmSan Diego

10h 10m

2 stops

ISP11:50 amIslip Long Island

Apr 20

ISP4:30 pmIslip Long Island

9h 25m

2 stops

SAN10:55 pmSan Diego

$427

Find similar

How to get the cheapest flight ticket from San Diego to Islip, New York

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Can stopping save me money on San Diego to Islip, New York flights?

You could potentially save up to 27% on your flight if you consider stops on a San Diego to Islip, New York flight.

When to book flights from San Diego to Islip, New York

Are you open to changing your travel dates? Check out the ideal times to fly from San Diego to Islip, New York according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap San Diego to Islip, New York (SAN to ISP) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Diego to Islip, New York

Fastest flight time	6h 55m
Direct flights	None

The fastest flight from San Diego to Islip, New York takes 6h 55m

There are no direct flights from San Diego to Islip, New York. There are no popular flight routes from San Diego to Islip, New York.

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How far is San Diego to Islip Long Island by plane?
Islip Long Island is 2467.5 mi away from San Diego. In terms of flight time, this usually takes a little over 6h 55m.
When did momondo last update prices for flights from San Diego Airport to Islip Long Island Airport?
Prices for flights from San Diego Airport to Islip Long Island Airport refresh daily.
How many operators does momondo search for flights from San Diego Airport to Islip Long Island Airport?
As of December 2025, there is 1 operator available to choose from for flights from San Diego Airport to Islip Long Island Airport.
How old do you have to be to fly from San Diego Airport to Islip Long Island Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to Islip Long Island Airport.
What documentation or ID do you need to fly to Islip Long Island Airport?
The travel and health documents you'll need for your trip to Islip Long Island Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Islip Long Island Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from San Diego to Islip, New York?
momondo data reveals that the most frequently booked airline on the route from San Diego to Islip, New York is Southwest, representing 100% of all bookings.

Best airlines flying from San Diego to Islip, New York

Compare and see reviews for airlines that fly from San Diego to Islip, New York with momondo

Airline	Rating	Free Cancellation	Price
Southwest	PriceFrom $416	Free Cancellation	Rating 7.9 4,253 reviews		Search Southwest flights

Montauk

Riverhead

Sag Harbor

Southampton

Amagansett

Why use momondo?

Why should I use momondo to find a flight deal from San Diego to Islip?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Diego to Islip. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from San Diego to Islip with flexible booking policies on momondo?

Yes. All flights to Islip from San Diego on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from San Diego to Islip?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Islip from San Diego.

I’m not ready to book a flight from San Diego to Islip right now. Can momondo alert me if prices change?

Yes. momondo can track prices for San Diego to Islip flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.