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
66.2 - 80.6 °F
SAN
Rainfall
0 - 2.8 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 to San Diego

One-way from

$150

One-way flight from Islip to San Diego

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Islip to San Diego?

Sunday flights are found to be more expensive to fly from Islip 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.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 17 days in advance, which can save you up to 27% on flights from Islip to San Diego compared to booking the week you need them. Waiting 17 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $73. For sooner than that we have options available in the next 3 days from $98.

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

Our data shows that July tends to be the cheapest month to fly to San Diego from Islip. Users have commonly found prices around $80 for the month, but tickets can be as low as $44. Due to multiple factors, prepare for potentially higher prices in December.

When is the cheapest time to fly from Islip to San Diego (ISP - SAN)?

When flying from Islip to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 42% versus a flight in the afternoon.

Cheap flights from Islip to San Diego in June, July 2021

The best prices found for ISP to SAN flights for June, July
31 Jul - 7 Aug
$297pp
ISP
Islip Long Island
American Airlines
   
2 STOPS
SAN
San Diego
SAN
San Diego
American Airlines
   
2 STOPS
ISP
Islip Long Island
31 Jul - 7 Aug
$345pp
ISP
Islip Long Island
American Airlines
   
2 STOPS
SAN
San Diego
SAN
San Diego
American Airlines
 
1 STOP
ISP
Islip Long Island
7 Jul - 12 Jul
$370pp
ISP
Islip Long Island
American Airlines
   
2 STOPS
SAN
San Diego
SAN
San Diego
American Airlines
   
2 STOPS
ISP
Islip Long Island

Islip to San Diego 2021 flight deals

Cheap flights to San Diego from Islip found for this year
26 Oct - 27 Oct
$289pp
ISP
Islip Long Island
American Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
American Airlines
 
1 STOP
ISP
Islip Long Island
16 Sep - 21 Sep
$293pp
ISP
Islip Long Island
American Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
American Airlines
   
2 STOPS
ISP
Islip Long Island
5 Oct - 6 Oct
$297pp
ISP
Islip Long Island
American Airlines
   
2 STOPS
SAN
San Diego
SAN
San Diego
American Airlines
   
2 STOPS
ISP
Islip Long Island

Last minute flights from Islip to San Diego

Late deals on round-trip flights to San Diego from Islip, departing today and this week
22 Jun - 26 Jun
$488pp
ISP
Islip Long Island
American Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
American Airlines
 
1 STOP
ISP
Islip Long Island
23 Jun - 26 Jun
$561pp
ISP
Islip Long Island
American Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
American Airlines
 
1 STOP
ISP
Islip Long Island
22 Jun - 25 Jun
$581pp
ISP
Islip Long Island
American Airlines
 
1 STOP
SAN
San Diego
SAN
San Diego
American Airlines
 
1 STOP
ISP
Islip Long Island

One-way flights to San Diego from Islip

The cheapest one-way flights from Islip to San Diego
2:15 am - 5:30 pm
American Airlines
1 Stop
18h 15m
ISP - SAN
American Airlines
2:25 am - 5:32 pm
American Airlines
1 Stop
18h 07m
ISP - SAN
American Airlines
2:25 am - 5:26 pm
American Airlines
1 Stop
18h 01m
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

Are flight prices decreasing from Islip to San Diego due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Islip and San Diego for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

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 to San Diego for under $300 on Cheapflights?

Yes, there are multiple flights from Islip to San Diego for under $300. The cheapest flight booked recently is on American Airlines for just $289, but on average you can expect to pay $370.

Are there nonstop flights from Islip to San Diego for under $300 on Cheapflights?

There are no nonstop flights from Islip to San Diego, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from Islip to San Diego for under $500?

There are currently 4+ open flights from Islip to San Diego within the next 7 days for less than $500.

Does it rain more in Islip or San Diego?

Islip will have greater rainfall in 0 compared to San Diego over the next 15 days.

Is Islip weather warmer or cooler than San Diego?

Expect the weather to be around 84 °F on average in July. As the temperature peaks, try to get your plans done early, as flight price and availability will have an impact on your travels. The climate in San Diego is generally colder than in Islip.

How long is the flight from Islip to San Diego?

There are many flights that can get you from Islip to San Diego in 8h 08m. Fly via American Airlines to get the fastest option.

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

Currently priced at $289, American Airlines will fly you from Islip to San Diego and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. American Airlines is priced at 27% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Islip to San Diego one-way?

$150 is the cheapest one-way deal found within the past few days, from American Airlines.

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 June in San Diego
75.2 °F
Avg rainfall for June in San Diego
0.1 ″

Airports servicing Islip

Airports servicing San Diego

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