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Not ready to book? to track prices.Find the cheapest flights from Islip, New York to San Diego
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Southwest flights from Islip, New York to San Diego
Our best Southwest deals on Islip, New York to San Diego flight tickets
Frontier flights from Islip, New York to San Diego
Our best Frontier deals on Islip, New York to San Diego flight tickets
See travel insights to San Diego from
How to get the cheapest flight ticket from Islip, New York to San Diego
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
What is the cheapest day to depart on your flight to San Diego?
The cheapest day to depart from Islip, New York to San Diego is on a Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $374. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $466. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.
What is the cheapest time of day to depart on your flight to San Diego?
The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $379. Flights at noon are often more expensive with an average ticket price of $552.
What is the cheapest airline that flies from Islip Long Island to San Diego?
Southwest and Breeze Airways are the most popular carriers operating from Islip Long Island to San Diego
What airlines fly to San Diego?
United Airlines, American Airlines and Delta are the top three most popular airlines that fly to San Diego from Islip, New York according to our data. United Airlines is the first choice among our users, with 46% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 10 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.
When to book flights from Islip, New York to San Diego
Cheap Islip, New York to San Diego (ISP to SAN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Islip, New York to San Diego
How far is Islip Long Island to San Diego by plane?
Islip Long Island and San Diego are 2467.5 mi apart from one another. Flights usually cover this in 8h 40m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Islip Long Island Airport to San Diego Airport?
Prices for flights from Islip Long Island Airport to San Diego Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Islip Long Island Airport to San Diego Airport?
As of June 2025, there is 1 operator available to choose from for flights from Islip Long Island Airport to San Diego Airport.
How old do you have to be to fly from Islip Long Island Airport to San Diego Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Islip Long Island Airport to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The required travel and health documents for your San Diego Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Islip, New York to San Diego?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Islip, New York to San Diego is Southwest (100% of total bookings).
Best airlines flying from Islip, New York to San Diego
Compare and see reviews for airlines that fly from Islip, New York to San Diego with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $436 | Free Cancellation | Rating 8.0 4,287 reviews |
Traveling to a place near San Diego?
Book flights to San Diego if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Islip to San Diego?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Diego from Islip.
Can I find flights from Islip to San Diego with flexible booking policies on momondo?
Yes. All flights to San Diego from Islip on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Islip to San Diego?
momondo provides multiple filters to help you find the best flight to San Diego from Islip. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Islip to San Diego right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Islip to San Diego 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.