Cheap flights from Islip to San Diego (ISP - SAN)

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How to find the cheapest flight from
Islip (ISP) to San Diego (SAN)

All the information you need to plan the best ISP to SAN flight in 2021: compare Islip to San Diego flight prices with the expected peak season, weather and rainfall in San Diego.
ISP - SAN
Price
$301 - $832
SAN
Temperature
57.2 - 71.6 °F
SAN
Precipitation
0 - 2.3 inches

Popular in

December

High demand for flights, 52% potential price rise

Cheapest in

February

Best time to find cheap flights, 25% potential price drop

Round-trip from

$301

From Islip Long Island to San Diego

One-way from

$118

One-way flight from Islip Long Island to San Diego

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
When is the cheapest time to fly from Islip, New York to San Diego (ISP - SAN)?

A simple way to save on the total cost of your ticket is to fly from Islip, New York to San Diego at noon. If you’re flexible enough to do this you can expect to save up to 42% on your trip compared to booking a flight in the afternoon.

How far in advance should I book a flight from Islip, New York to San Diego?

Travelers have found it’s best to book a flight 35 days in advance to save up to 42% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 35 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Islip, New York to San Diego 1-2 weeks in advance for as low as $381, or $460 for flights within the next 24 hours.

What is the cheapest month to fly from Islip, New York to San Diego?

Our data shows that August tends to be the cheapest month to fly to San Diego from Islip, New York. Users have commonly found prices around $326 for the month, but tickets can be as low as $138. Due to multiple factors, prepare for potentially higher prices in December.

What is the cheapest day to fly round-trip from Islip, New York to San Diego?

Sunday flights are found to be more expensive to fly from Islip, New York to San Diego. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Diego.

Cheap flights from Islip to San Diego in October, November 2021

The best prices found for ISP to SAN flights for October, November
28 Oct - 2 Nov
$240pp
ISP
Islip Long Island
American Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
American Airlines
 
1 STOP
ISP
Islip Long Island
31 Oct - 2 Nov
$245pp
ISP
Islip Long Island
American Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
American Airlines
 
1 STOP
ISP
Islip Long Island
31 Oct - 2 Nov
$249pp
ISP
Islip Long Island
American Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
American Airlines
   
2 STOPS
ISP
Islip Long Island

Islip Long Island to San Diego 2021 flight deals

Cheap flights to San Diego from Islip found for this year
28 Oct - 2 Nov
$240pp
ISP
Islip Long Island
American Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
American Airlines
 
1 STOP
ISP
Islip Long Island
31 Oct - 2 Nov
$245pp
ISP
Islip Long Island
American Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
American Airlines
 
1 STOP
ISP
Islip Long Island
31 Oct - 2 Nov
$249pp
ISP
Islip Long Island
American Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
American Airlines
   
2 STOPS
ISP
Islip Long Island

One-way flights to San Diego from Islip

The cheapest one-way flights from Islip to San Diego
10:59 am - 4:46 pm
American Airlines
1 Stop
8h 47m
ISP - SAN
American Airlines
2:15 am - 3:46 pm
American Airlines
1 Stop
16h 31m
ISP - SAN
American Airlines
9:59 am - 7:53 am
American Airlines
1 Stop
24h 54m
ISP - SAN
American Airlines

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Islip</span> to <span class="emphasized">San Diego</span> flights.

Flight FAQs

From Islip to San Diego

Which airlines flying from Islip Long Island to San Diego have flexible cancellations due to COVID-19?

American Airlines, Frontier, and Delta are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Islip, New York to San Diego for under $200 on Cheapflights?

Yes, there are multiple flights from Islip, New York to San Diego for under $200. The cheapest flight booked recently is on Multiple Airlines for just $185, but on average you can expect to pay $262.

What is the cheapest airline to fly from Islip, New York to San Diego round-trip?

Cheapflights users have booked flights from Islip, New York to San Diego round-trip from $235. American Airlines is currently priced 41% below the average price you’ll pay for this route.

What are the most popular airlines that fly from Islip, New York to San Diego?

When booking a flight from Islip, New York to San Diego, you may want to consider flying on American Airlines, Delta or Frontier as they are the most popular for this route.

What are the cheapest flights from Islip, New York to San Diego?

Looking for the cheapest flight from Islip, New York to San Diego? While on average our users pay $511, our data indicates the cheapest price to be $114. The most popular route (Islip Long Island - San Diego), is priced around $169.

COVID Restrictions

View COVID Travel Restrictions for San Diego, CA

Do I need a COVID test to fly to San Diego from Islip?

Information is based on travel restrictions for travel to San Diego within the United States

Most visitors from Islip Long Island need to provide a negative COVID-19 test result and/or quarantine to enter San Diego.

COVID-19 testing requirements
Visitors from Islip Long Island must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to San Diego.

Quarantine requirements
Visitors from Islip Long Island are not required to quarantine after entering San Diego.

Do I need a test to fly back to Islip from San Diego?

Returning to Islip Long Island from San Diego

COVID-19 testing requirements
Visitors from San Diego must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Islip Long Island.

Quarantine requirements
Visitors from San Diego are not required to quarantine after entering Islip Long Island.

Hide COVID Travel Restrictions for San Diego, CA

Alternative routes for Islip to San Diego

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for San Diego

Things to know before you go - useful duration and weather info for your trip from Islip to San Diego.
Average temperature for October in San Diego
77.0 °F
Avg rainfall for October in San Diego
0.6 ″

Airports servicing Islip

Airports servicing San Diego

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