$169+ 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from San Francisco Bay Area to Islip 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 San Francisco Bay Area to Islip
Cheapest flights from San Francisco Bay Area to IslipExplore 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 December 18, 2025.
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 December 18, 2025.
This Trip.com deal was found by Cheapflights users on 12/16. 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.
This Southwest deal was found by Cheapflights users on 12/16. 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.
This Expedia deal was found by Cheapflights users on 12/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Booking.com deal was found by Cheapflights users on 12/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find 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 December 18, 2025.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $216 (Trip.com) |
One-way from | $169 (Kiwi.com) |
Popular in | December |
Cheapest in | February |
Average price | $497 |
Cheapflights Fare Finder
Use the filters below to find and compare flights from San Francisco Bay Area to Islip that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
San FranciscoIslip
SFO - ISP
SFOISP
San Francisco
Mon 1/12
11:20 pm-10:46 pm
2 stops20h 26m
Islip Long Island
Mon 1/26
7:43 pm-11:41 pm
2 stops30h 58m
San FranciscoIslip
SFO - ISP
SFOISP
San Francisco
Fri 1/9
11:42 pm-11:33 am
1 stop8h 51m
Islip Long Island
Tue 1/13
12:25 pm-11:29 pm
1 stop14h 04m
San FranciscoIslip
SFO - ISP
SFOISP
San Francisco
Wed 1/28
9:30 pm-11:55 am
1 stop11h 25m
Islip Long Island
Mon 2/2
6:00 am-1:25 pm
1 stop10h 25m
OaklandIslip
OAK - ISP
OAKISP
Oakland
Wed 1/28
7:40 am-9:55 pm
2 stops11h 15m
Islip Long Island
Mon 2/2
12:40 pm-9:45 pm
2 stops12h 05m
San JoseIslip
SJC - ISP
SJCISP
San Jose
Wed 1/28
7:50 am-9:55 pm
2 stops11h 05m
Islip Long Island
Mon 2/2
12:40 pm-9:55 pm
2 stops12h 15m
San FranciscoIslip
SFO - ISP
SFOISP
San Francisco
Mon 1/12
9:30 pm-11:55 am
1 stop11h 25m
Islip Long Island
Mon 1/26
6:00 am-1:25 pm
1 stop10h 25m
San JoseIslip
SJC - ISP
SJCISP
San Jose
Thu 3/12
9:50 pm-11:40 am
1 stop10h 50m
Islip Long Island
Tue 3/17
4:40 pm-9:45 pm
1 stop8h 05m
San JoseIslip
SJC - ISP
SJCISP
San Jose
Wed 12/31
5:13 pm-11:05 am
2 stops14h 52m
Islip Long Island
Sun 1/4
7:25 am-10:39 pm
2 stops18h 14m
San JoseIslip
SJC - ISP
SJCISP
San Jose
Thu 1/1
6:30 pm-11:05 am
2 stops13h 35m
Islip Long Island
Mon 1/5
12:30 pm-10:39 pm
2 stops13h 09m
San FranciscoIslip
SFO - ISP
SFOISP
San Francisco
Mon 1/26
6:15 am-11:10 am
3 stops49h 55m
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.
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 $64). Flying from San Francisco Bay Area to Islip, New York in December is currently the most expensive (average of $207). 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 December 18, 2025.
One of the essential ways to save on airfare from San Francisco Bay Area to Islip, New York is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 56% on airfare.