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Islip

$145+ Cheap flights from San Francisco Bay Area to Islip, NY (ISP)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ISP
Aug 12 — Aug 191
Tue 8/12
Tue 8/19
1 adult, Economy
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Cheap flight deals from San Francisco Bay Area to Islip

Keep the following information in mind while searching for San Francisco Bay Area to Islip flight deals. Data was last updated August 7, 2025.

Round-trip from

$279
(JetBlue)

One-way from

$145
(CheapOair)

Popular in

December

Cheapest in

February

Average price

$437
From San Francisco Bay Area to Islip Long Island
Search Deals
One-way flight from San Francisco Bay Area to Islip Long Island
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from San Francisco Bay Area to Islip

Cheapest flights from San Francisco Bay Area to Islip
Explore the most affordable flight options available from San Francisco Bay Area to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 7, 2025.

This JetBlue deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/710:15 pmSFO - ISP
1 stop9h 35mJetBlue
Mon 10/2712:15 pmISP - SFO
1 stop14h 09mJetBlue
Deal found 8/7$279
This JetBlue deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/710:15 pmSFO - ISP
1 stop9h 35mJetBlue
Tue 10/2812:15 pmISP - SFO
1 stop14h 09mJetBlue
Deal found 8/7$321
This JetBlue deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/710:15 pmSFO - ISP
1 stop9h 35mJetBlue
Wed 10/2912:15 pmISP - SFO
1 stop14h 09mJetBlue
Deal found 8/7$323
This CheapOair deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/98:53 pmSFO - ISP
1 stop23h 54mFrontier
Sat 8/168:37 pmISP - SFO
1 stop16h 48mFrontier
Deal found 8/6$338
This Frontier deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/196:50 amSFO - ISP
2 stops14h 09mFrontier
Tue 8/266:05 amISP - SFO
2 stops19h 28mFrontier
Deal found 8/7$354
This JetBlue deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/319:45 pmSFO - ISP
1 stop10h 33mJetBlue
Tue 11/412:15 pmISP - SFO
1 stop14h 09mJetBlue
Deal found 8/7$361
This JetBlue deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/79:45 pmSFO - ISP
1 stop10h 33mJetBlue
Tue 11/1112:15 pmISP - SFO
1 stop14h 09mJetBlue
Deal found 8/6$363
This JetBlue deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/910:15 pmSFO - ISP
1 stop9h 35mJetBlue
Tue 10/2812:15 pmISP - SFO
1 stop14h 09mJetBlue
Deal found 8/7$365
This JetBlue deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/910:15 pmSFO - ISP
1 stop9h 35mJetBlue
Wed 10/2912:15 pmISP - SFO
1 stop14h 09mJetBlue
Deal found 8/7$367
This Frontier deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/206:50 amSFO - ISP
2 stops13h 51mFrontier
Tue 8/266:05 amISP - SFO
2 stops19h 28mFrontier
Deal found 8/7$369
This Frontier deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/211:58 pmSFO - ISP
2 stops16h 15mFrontier
Tue 8/266:05 amISP - SFO
2 stops19h 28mFrontier
Deal found 8/7$375
This Frontier deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/196:50 amSFO - ISP
2 stops14h 09mFrontier
Thu 8/216:05 amISP - SFO
2 stops16h 10mFrontier
Deal found 8/7$380

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco Bay Area to Islip that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 7, 2025.
Use the filters below to find and compare flights from San Francisco Bay Area to Islip that are best for you.

Fly from

San Francisco Bay Area

Fly to

Islip

Route

Depart

Return

Price

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Tue 10/7

10:15 pm-10:50 am

1 stop9h 35m

Islip Long Island

Mon 10/27

12:15 pm-11:24 pm

1 stop14h 09m

$279

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Tue 10/7

10:15 pm-10:50 am

1 stop9h 35m

Islip Long Island

Tue 10/28

12:15 pm-11:24 pm

1 stop14h 09m

$321

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Tue 10/7

10:15 pm-10:50 am

1 stop9h 35m

Islip Long Island

Wed 10/29

12:15 pm-11:24 pm

1 stop14h 09m

$323

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Tue 8/19

6:50 am-11:59 pm

2 stops14h 09m

Islip Long Island

Tue 8/26

6:05 am-10:33 pm

2 stops19h 28m

$354

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Fri 10/31

9:45 pm-11:18 am

1 stop10h 33m

Islip Long Island

Tue 11/4

12:15 pm-11:24 pm

1 stop14h 09m

$361

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Fri 11/7

9:45 pm-11:18 am

1 stop10h 33m

Islip Long Island

Tue 11/11

12:15 pm-11:24 pm

1 stop14h 09m

$363

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Thu 10/9

10:15 pm-10:50 am

1 stop9h 35m

Islip Long Island

Tue 10/28

12:15 pm-11:24 pm

1 stop14h 09m

$365

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Thu 10/9

10:15 pm-10:50 am

1 stop9h 35m

Islip Long Island

Wed 10/29

12:15 pm-11:24 pm

1 stop14h 09m

$367

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Wed 8/20

6:50 am-11:41 pm

2 stops13h 51m

Islip Long Island

Tue 8/26

6:05 am-10:33 pm

2 stops19h 28m

$369

San FranciscoIslip

SFO - ISP

SFOISP

San Francisco

Thu 8/21

1:58 pm-9:13 am

2 stops16h 15m

Islip Long Island

Tue 8/26

6:05 am-10:33 pm

2 stops19h 28m

$375

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/6

Showing 1-10 of 40 results
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Best time to book a flight from San Francisco Bay Area to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from San Francisco Bay Area with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Francisco Bay Area to Islip

What is the cheapest month to book a flight from San Francisco Bay Area to Islip, New York?

Currently, January is the cheapest month in which you can book a flight from San Francisco Bay Area to Islip, New York (average of $108). Flying from San Francisco Bay Area to Islip, New York in November is currently the most expensive (average of $213). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from XIH to ISP?

Find hourly flight availability from San Francisco Bay Area to Islip. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 7, 2025.

When flying from San Francisco Bay Area to Islip, New York, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Islip. Reviews last updated August 7, 2025.
Read reviews from past customers who have flown Southwest, Breeze Airways, and JetBlue from San Francisco Bay Area to Islip. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,247 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Southwest
8.0
Very good
4,247 reviews
Southwest
8.0
Very good
4,247 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Breeze Airways
8.0
Very good
191 reviews
Southwest
8.0
Very good
4,247 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
JetBlue
7.2
Good
2,915 reviews
Southwest
8.0
Very good
4,247 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Frontier
5.9
Fair
3,230 reviews
Southwest
8.0
Very good
4,247 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Related info for your journey

Find useful and relevant information for your journey from San Francisco Bay Area to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Islip from San Francisco Bay Area?

    Most people fly into Islip Long Island (ISP) if they book a flight to Islip from San Francisco Bay Area. Long Island is conveniently located just 7.2 mi from Islip’s city center.

  • What are the most popular routes from San Francisco Bay Area to Islip, New York?

    When deciding which route to take from San Francisco Bay Area to Islip, New York consider San Francisco - Islip Long Island, San Jose - Islip Long Island or Oakland - Islip Long Island as they are the most popular.

  • Can I find deals for flights from San Francisco Bay Area to Islip that include hotel bookings?

    Yes. In addition to deals on San Francisco Bay Area to Islip flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco Bay Area to Islip?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco Bay Area to Islip.

  • Can I find deals for business class flights from San Francisco Bay Area to Islip?

    Yes. Cheapflights offers flight deals from San Francisco Bay Area to Islip by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Francisco Bay Area to Islip, New York?

    Currently, January is the cheapest month in which you can book a flight from San Francisco Bay Area to Islip, New York (average of $108). Flying from San Francisco Bay Area to Islip, New York in November is currently the most expensive (average of $213). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Islip?

Book flights to Islip if you plan to visit one of these locations
Riverhead
Southampton

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Alternative routes for San Francisco Bay Area to Islip

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from San Francisco Bay Area to Islip

Discover the top airline that operate flights from San Francisco Bay Area to Islip. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$318Average$558FlexibilityNo cancel feeOn-time63%

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