Which airports can I use when flying from Islip to San Diego?

Flights from Islip to San Diego usually depart from Islip Long Island (ISP) and arrive at San Diego (SAN).

What cabin classes can I book on flights from Islip to San Diego?

Only Economy Class is available on flights from Islip to San Diego.

Which airports do connecting flights from Islip to San Diego pass through?

Most connecting flights from Islip to San Diego pass through Baltimore/Washington (BWI), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.

Can I save money by using flexible dates for flights from Islip to San Diego?

Yes. Being flexible with your travel dates can save you up to 56% on the Islip to San Diego route. Thursday is the cheapest departure day at $323 round-trip on average, while Monday is the most expensive at $728, a difference of $405. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

What popular places can I visit in San Diego?

Some of the most popular sights in San Diego are Gaslamp Quarter, San Diego Convention Center and SeaWorld San Diego. These are among the most viewed places in San Diego on KAYAK.

How long is a flight from Islip to San Diego?

A nonstop flight from Islip to San Diego takes 0h 00m, covering 2,475 miles.

Do I need a passport to fly from Islip to San Diego?

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Have flight prices from Islip to San Diego changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $444 to $3,328. That means the highest observed fare was about 7x higher than the lowest one.

How are flight prices from Islip to San Diego looking right now?

One-way fares from Islip to San Diego are currently lower than usual. Average one-way flight prices are about $252, which is 28% below the typical average for this route.

What is the time difference between Islip and San Diego?

San Diego is 3 hours behind Islip (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at San Diego Airport (SAN)?

San Diego Airport (SAN) hosts 5 major car rental companies, with daily rates starting from around $14 for economy cars. Top options include: • Dollar • Payless • Europcar • Thrifty • Fox

How much should I expect to pay for a Islip to San Diego flight?

Round-trip flights from Islip to San Diego range from $446 to $728, with an average of $596 over the past 12 months. Anything below $446 counts as a good deal.

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

Southwest ($444) offered the cheapest round-trip ticket from Islip to San Diego in the last 5 days.

What is the cheapest layover airport when flying from Islip to San Diego?

Flights via Baltimore/Washington (BWI) offer the most affordable fares, with an average round-trip price of $570. Based on KAYAK data over the past 3 months.

When flying from Islip to San Diego which airport offers the shortest layover?

Baltimore/Washington (BWI) had the shortest average connection time for Islip to San Diego layovers at 302 minutes over the past 3 months.

$205 CHEAP FLIGHTS from Islip to San Diego (ISP - SAN)

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Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$444

Typical prices: $446-$728

Southwest

Fri 10/5Mon 10/15

ISP - SAN • 2 stops

Cheapest one-way

$205

Typical prices: $269-$353

Multiple Airlines

Wed 9/26

ISP - SAN • 2 stops

Nonstop flights

Not available

There are currently no direct flights between Islip and San Diego. You'll need to take a connecting flight to reach the destination.

Insights

When to travel

October

Cheapest • 29% price drop

July

Most popular

Good to know

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We hope you love your trip to San Diego!

Flight Deals

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

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Islip to San Diego

Mon, Oct 5 - Thu, Oct 15

3:10 pm - 10:45 pmISP Islip Long Island-SAN San Diego

10h 35m2 stops Baltimore/Washington Denver Intl

9:50 pm - 2:30 pmSAN San Diego-ISP Islip Long Island

13h 40m1 stop Baltimore/Washington

$444Southwest

Fri, Oct 30 - Wed, Nov 4

3:02 pm - 11:57 pmISP Islip Long Island-SAN San Diego

11h 55m2 stops Raleigh-Durham Denver Intl

1:13 pm - 7:05 pmSAN San Diego-ISP Islip Long Island

26h 52m1 stop Norfolk

$454Multiple Airlines

Fri, Oct 30 - Wed, Nov 4

6:00 am - 12:20 pmISP Islip Long Island-SAN San Diego

9h 20m1 stop Baltimore/Washington

9:20 am - 9:15 pmSAN San Diego-ISP Islip Long Island

8h 55m1 stop Orlando

$467Southwest

Mon, Oct 5 - Thu, Oct 15

3:10 pm - 10:45 pmISP Islip Long Island-SAN San Diego

10h 35m2 stops Baltimore/Washington Denver Intl

11:20 am - 11:40 pmSAN San Diego-ISP Islip Long Island

9h 20m2 stops Dallas Love Field Baltimore/Washington

$475Southwest

Fri, Oct 30 - Wed, Nov 4

6:00 am - 12:05 pmISP Islip Long Island-SAN San Diego

9h 05m2 stops Baltimore/Washington Chicago Midway

7:05 am - 9:45 pmSAN San Diego-ISP Islip Long Island

11h 40m2 stops Nashville Intl Baltimore/Washington

$477Southwest

Sat, Sep 26 - Wed, Sep 30

12:00 pm - 11:52 amISP Islip Long Island-SAN San Diego

26h 52m1 stop Raleigh-Durham

5:54 pm - 4:58 pmSAN San Diego-ISP Islip Long Island

20h 04m2 stops Las Vegas Harry Reid Intl Orlando

$520Multiple Airlines

Mon, Oct 5 - Thu, Oct 15

6:00 am - 12:20 pmISP Islip Long Island-SAN San Diego

9h 20m1 stop Baltimore/Washington

9:50 pm - 2:30 pmSAN San Diego-ISP Islip Long Island

13h 40m1 stop Baltimore/Washington

$530Southwest

Sat, Oct 10 - Sat, Oct 17

3:50 pm - 9:00 pmISP Islip Long Island-SAN San Diego

8h 10m1 stop Baltimore/Washington

9:50 pm - 10:20 amSAN San Diego-ISP Islip Long Island

9h 30m1 stop Baltimore/Washington

$533Southwest

Sat, Oct 10 - Sat, Oct 17

3:50 pm - 10:30 pmISP Islip Long Island-SAN San Diego

9h 40m2 stops Baltimore/Washington Nashville Intl

9:50 pm - 10:20 amSAN San Diego-ISP Islip Long Island

9h 30m1 stop Baltimore/Washington

$538Southwest

Wed, Nov 25 - Mon, Nov 30

4:55 pm - 10:45 pmISP Islip Long Island-SAN San Diego

8h 50m1 stop Baltimore/Washington

10:35 pm - 3:30 pmSAN San Diego-ISP Islip Long Island

13h 55m1 stop Orlando

$542Southwest

Booking Insights

Price, demand and travel trends for Islip to San Diego flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Islip to San Diego with more confidence.

Prices

Airlines

Layovers

How much is a round-trip flight from Islip to San Diego?

Round-trip flights from Islip to San Diego start at $444. Prices are below average for this route right now, with typical round-trip fares ranging from $446 to $728. The lowest price found in the past 5 days was $444 on Southwest.

What's the cheapest day of the week to fly from Islip to San Diego?

Thursday is the cheapest day of the week to fly from Islip to San Diego, it is 46% cheaper than the average day. Monday is the most expensive day with flight prices 22% higher than average. Based on deals found by KAYAK users in the last 12 months.

Find deals

Low season	February
High season	July
Cheapest flight	$205

Most popular time to fly and prices are also 6% lower on average.

Flight from Islip to San Diego

When to book flights from Islip to San Diego

Are your dates flexible? Find out the best times to travel from Islip to San Diego 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.

Which airports can I use when flying from Islip to San Diego?
Flights from Islip to San Diego usually depart from Islip Long Island (ISP) and arrive at San Diego (SAN).
What cabin classes can I book on flights from Islip to San Diego?
Only Economy Class is available on flights from Islip to San Diego.
Which airports do connecting flights from Islip to San Diego pass through?
Most connecting flights from Islip to San Diego pass through Baltimore/Washington (BWI), which handles 100% of one-stop traffic on this route. Other layover airports each see under 5%.
Can I save money by using flexible dates for flights from Islip to San Diego?
Yes. Being flexible with your travel dates can save you up to 56% on the Islip to San Diego route. Thursday is the cheapest departure day at $323 round-trip on average, while Monday is the most expensive at $728, a difference of $405. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
What popular places can I visit in San Diego?
Some of the most popular sights in San Diego are Gaslamp Quarter, San Diego Convention Center and SeaWorld San Diego. These are among the most viewed places in San Diego on KAYAK.
How long is a flight from Islip to San Diego?
A nonstop flight from Islip to San Diego takes 0h 00m, covering 2,475 miles.
Do I need a passport to fly from Islip to San Diego?
No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.
Have flight prices from Islip to San Diego changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $444 to $3,328. That means the highest observed fare was about 7x higher than the lowest one.
How are flight prices from Islip to San Diego looking right now?
One-way fares from Islip to San Diego are currently lower than usual. Average one-way flight prices are about $252, which is 28% below the typical average for this route.
What is the time difference between Islip and San Diego?
San Diego is 3 hours behind Islip (Pacific Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.
What car rental options are available at San Diego Airport (SAN)?
San Diego Airport (SAN) hosts 5 major car rental companies, with daily rates starting from around $14 for economy cars. Top options include:
• Dollar
• Payless
• Europcar
• Thrifty
• Fox
How much should I expect to pay for a Islip to San Diego flight?
Round-trip flights from Islip to San Diego range from $446 to $728, with an average of $596 over the past 12 months. Anything below $446 counts as a good deal.

If your dates can be flexible, aim for a Thursday departure instead of Monday. On this route, Thursday flights average $323 - about $405 less than Monday (56% savings) based on the last 12 months.
If you can choose when to travel, plan your Islip to San Diego trip for October. Fares historically average $422 round-trip in that month - typically $420 less than the most expensive month, which is November (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to San Diego Airport.
- Courtyard by Marriott San Diego Downtown Little Italy
- Bay Club Hotel & Marina
- Sheraton San Diego Resort

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ISP - SAN

$205 Find Cheap Flights from Islip to San Diego - Compare and Save

Everything you should know

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

Recent round-trip flight deals from Islip to San Diego

Recent one-way flight deals from Islip to San Diego

Recent last minute flight deals from Islip to San Diego

Price, demand and travel trends for Islip to San Diego flights

How much is a round-trip flight from Islip to San Diego?

What's the cheapest day of the week to fly from Islip to San Diego?

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

What is the cheapest layover airport when flying from Islip to San Diego?

When flying from Islip to San Diego which airport offers the shortest layover?

Key details for Islip to San Diego flights

Low season

High season

Cheapest flight

When to book flights from Islip to San Diego

Your Islip to San Diego flight questions, answered

Your guide to booking Islip to San Diego flights

More options for your flight from Islip to San Diego

Complete your trip to San Diego with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Islip to San Diego

Find direct flights to and from Islip and San Diego

Flights from domestic origins to San Diego

Flights to other popular destinations

Find deals for your return flight