HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Francisco

$168+ Cheap flights from Islip to San Francisco (ISP - SFO)

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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — SFO
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Islip to San Francisco with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Islip to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Find flight deals from Islip to San Francisco

Cheapest flights from Islip to San Francisco
Explore the most affordable flight options available from Islip to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Southwest deal was found by Cheapflights users on 11/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/106:25 amISP - SFO
2 stops13h 30mSouthwest
Wed 12/117:05 amSFO - ISP
2 stops12h 10mSouthwest
Deal found 11/19$438
This JetBlue deal was found by Cheapflights users on 11/19. 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.
Wed 12/181:52 pmISP - SFO
1 stop13h 22mJetBlue
Tue 1/79:44 pmSFO - ISP
1 stop11h 01mJetBlue
Deal found 11/19$473
This Trip.com deal was found by Cheapflights users on 11/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/24:53 pmISP - SFO
2 stops34h 18mFrontier
Thu 12/59:10 pmSFO - ISP
2 stops18h 08mFrontier
Deal found 11/19$498

Find flights from Islip to San Francisco within your budget

Customize your flight search to find flights from Islip to San Francisco 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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

IslipSan Francisco

ISP - SFO

ISPSFO

Islip Long Island

Sat 1/11

12:40 pm-11:59 pm

1 stop14h 19m

San Francisco

Thu 1/23

9:44 pm-11:45 am

1 stop11h 01m

$388

IslipSan Francisco

ISP - SFO

ISPSFO

Islip Long Island

Tue 12/10

6:25 am-4:55 pm

2 stops13h 30m

San Francisco

Wed 12/11

7:05 am-10:15 pm

2 stops12h 10m

$438

IslipSan Francisco

ISP - SFO

ISPSFO

Islip Long Island

Mon 12/2

4:53 pm-12:11 am

2 stops34h 18m

San Francisco

Thu 12/5

9:10 pm-6:18 pm

2 stops18h 08m

$498

IslipSan Francisco

ISP - SFO

ISPSFO

Islip Long Island

Wed 1/22

12:40 pm-11:59 pm

1 stop14h 19m

$168

IslipSan Francisco

ISP - SFO

ISPSFO

Islip Long Island

Sat 1/4

2:40 pm-11:45 pm

2 stops12h 05m

$313

IslipSan Francisco

ISP - SFO

ISPSFO

Islip Long Island

Thu 12/26

7:34 pm-12:33 pm

3 stops19h 59m

$831

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Compare providers for flights from Islip to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Islip to San Francisco in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Islip, New York-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Islip, New York-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Islip, New York-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Islip, New York-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Islip, New York-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Islip to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Islip 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.

Travel insights for flights from Islip to San Francisco

Get recent, data-driven insights about flights from Islip to San Francisco including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Islip, New York to San Francisco (average of $276). Flying from Islip, New York to San Francisco in June is currently the most expensive (average of $381). 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.

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated November 20, 2024.
Breeze Airways
8.2
Very good
123 reviews

Boarding

8.4

Entertainment

6.6

Comfort

8.3

Overall

8.2

Crew

8.9

Food

6.7

Reviews

1 / 8

Good flight on Breeze, on time, comfortable, friendly pilot and crew

Breeze Airways
8.2
Very good
123 reviews
Breeze Airways
8.2
Very good
123 reviews

Boarding

8.4

Entertainment

6.6

Comfort

8.3

Overall

8.2

Crew

8.9

Food

6.7

Reviews

1 / 8

Good flight on Breeze, on time, comfortable, friendly pilot and crew

Southwest
8.1
Very good
5,014 reviews
Breeze Airways
8.2
Very good
123 reviews

Boarding

8.4

Entertainment

6.6

Comfort

8.3

Overall

8.2

Crew

8.9

Food

6.7

Reviews

1 / 8

Good flight on Breeze, on time, comfortable, friendly pilot and crew

JetBlue
7.5
Good
3,394 reviews
Breeze Airways
8.2
Very good
123 reviews

Boarding

8.4

Entertainment

6.6

Comfort

8.3

Overall

8.2

Crew

8.9

Food

6.7

Reviews

1 / 8

Good flight on Breeze, on time, comfortable, friendly pilot and crew

Frontier
6.1
Okay
3,539 reviews
Breeze Airways
8.2
Very good
123 reviews

Boarding

8.4

Entertainment

6.6

Comfort

8.3

Overall

8.2

Crew

8.9

Food

6.7

Reviews

1 / 8

Good flight on Breeze, on time, comfortable, friendly pilot and crew

Related info for your journey

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

  • What are the cheapest airlines to fly from Islip, New York to San Francisco one-way?

    For one-way options, check prices for JetBlue. According to our data, you can fly for as low as $168. Users have also found prices from $313 and $831 on Southwest and Breeze Airways, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Islip to San Francisco 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 Islip, New York to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Islip, New York to San Francisco (average of $276). Flying from Islip, New York to San Francisco in June is currently the most expensive (average of $381). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Islip to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Los Angeles flights
Newark to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
John F Kennedy Intl to San Francisco flights
LaGuardia to Los Angeles flights
Newark to Las Vegas flights
Newark to San Francisco flights
LaGuardia to Las Vegas flights
Newark to Santa Ana flights
LaGuardia to San Francisco flights
John F Kennedy Intl to San Diego flights
Newark to San Diego flights
Newark to Burbank flights
LaGuardia to Burbank flights
LaGuardia to Santa Ana flights
Newark to Ontario flights
Newark to Oakland flights
John F Kennedy Intl to Ontario flights
Newark to San Jose flights
LaGuardia to Oakland flights
LaGuardia to Ontario flights
LaGuardia to San Diego flights
John F Kennedy Intl to Santa Ana flights
John F Kennedy Intl to San Jose flights
Newark to Sacramento flights
Newark to Palm Springs flights
John F Kennedy Intl to Palm Springs flights
LaGuardia to Palm Springs flights
LaGuardia to San Jose flights
John F Kennedy Intl to Sacramento flights
John F Kennedy Intl to Oakland flights
Newark to Reno flights
John F Kennedy Intl to Reno flights
John F Kennedy Intl to Burbank flights
LaGuardia to Sacramento flights
LaGuardia to Reno flights
Buffalo to Las Vegas flights
White Plains to Los Angeles flights
Buffalo to Los Angeles flights
Syracuse to Las Vegas flights
Syracuse to Los Angeles flights
Rochester to Las Vegas flights
Albany to Las Vegas flights
John F Kennedy Intl to Fresno flights
John F Kennedy Intl to Santa Barbara flights
Albany to Los Angeles flights
Buffalo to San Francisco flights
Stewart to Las Vegas flights
Newark to Santa Barbara flights
Newark to Fresno flights
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines