$182+ Cheap flights from San Jose, CA to Islip, NY (SJC - 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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — ISP
ago. 16 — ago. 231
Round-trip
1 adult, Economy
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Best
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One-way
Cheapest flights from San Jose to IslipExplore the most affordable flight options available from San Jose to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 17, 2026.
Explore the most affordable flight options available from San Jose to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 17, 2026.
This Southwest deal was found by Cheapflights users on 7/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/1910:30 pm
SJC
- ISP
1 stop8h 10m
Southwest
mié. 8/2612:55 pm
ISP
- SJC
1 stop8h 25m
Southwest
Deal found 7/15![Southwest logo]()
$363
This Southwest deal was found by Cheapflights users on 7/14. 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.
mié. 9/210:30 pm
SJC
- ISP
1 stop8h 10m
Southwest
lun. 9/76:10 am
ISP
- SJC
1 stop9h 50m
Southwest
Deal found 7/14![Southwest logo]()
$425
This Southwest deal was found by Cheapflights users on 7/12. 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.
vie. 7/3110:25 am
SJC
- ISP
2 stops10h 15m
Southwest
lun. 8/36:00 am
ISP
- SJC
2 stops10h 55m
Southwest
Deal found 7/12![Southwest logo]()
$577
This Southwest deal was found by Cheapflights users on 7/12. 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.
vie. 8/710:30 pm
SJC
- ISP
1 stop10h 35m
Southwest
dom. 8/96:20 am
ISP
- SJC
1 stop9h 55m
Southwest
Deal found 7/12![Southwest logo]()
$627
This Southwest deal was found by Cheapflights users on 7/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/2311:00 pm
SJC
- ISP
2 stops9h 50m
Southwest
dom. 12/276:05 am
ISP
- SJC
1 stop10h 20m
Southwest
Deal found 7/15![Southwest logo]()
$795
Best flights from San Jose to IslipDiscover carefully curated flight deals from San Jose to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 17, 2026.
Discover carefully curated flight deals from San Jose to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 17, 2026.
This Southwest deal was found by Cheapflights users on 7/13. 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.
jue. 8/2710:30 pm
SJC
- ISP
1 stop8h 10m
Southwest
sáb. 8/2911:55 am
ISP
- SJC
2 stops11h 35m
Southwest
Deal found 7/13![Southwest logo]()
$368
This Southwest deal was found by Cheapflights users on 7/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/198:15 pm
SJC
- ISP
2 stops10h 25m
Southwest
mié. 8/266:05 am
ISP
- SJC
2 stops9h 40m
Southwest
Deal found 7/15![Southwest logo]()
$373
This Southwest deal was found by Cheapflights users on 7/14. 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.
mié. 9/211:00 pm
SJC
- ISP
2 stops10h 35m
Southwest
lun. 9/76:10 am
ISP
- SJC
1 stop9h 50m
Southwest
Deal found 7/14![Southwest logo]()
$430
This Southwest deal was found by Cheapflights users on 7/12. 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.
vie. 7/3110:25 am
SJC
- ISP
2 stops10h 15m
Southwest
lun. 8/36:00 am
ISP
- SJC
2 stops10h 55m
Southwest
Deal found 7/12![Southwest logo]()
$577
This Southwest deal was found by Cheapflights users on 7/12. 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.
vie. 8/710:30 pm
SJC
- ISP
1 stop10h 35m
Southwest
dom. 8/96:20 am
ISP
- SJC
1 stop9h 55m
Southwest
Deal found 7/12![Southwest logo]()
$627
This Southwest deal was found by Cheapflights users on 7/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/2311:00 pm
SJC
- ISP
2 stops9h 50m
Southwest
dom. 12/276:05 am
ISP
- SJC
1 stop10h 20m
Southwest
Deal found 7/15![Southwest logo]()
$795
Last-minute flights from San Jose to IslipDiscover last-minute flight deals from San Jose to Islip. Data last updated julio 17, 2026 and is based on user searches.
Discover last-minute flight deals from San Jose to Islip. Data last updated julio 17, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 7/13. 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.
jue. 7/1610:25 am
SJC
- ISP
2 stops10h 15m
Southwest
lun. 7/209:10 am
ISP
- SJC
1 stop9h 15m
Southwest
Deal found 7/13![Southwest logo]()
$1,077
This Southwest deal was found by Cheapflights users on 7/12. 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.
vie. 7/3110:25 am
SJC
- ISP
2 stops10h 15m
Southwest
lun. 8/36:00 am
ISP
- SJC
2 stops10h 55m
Southwest
Deal found 7/12![Southwest logo]()
$577
This Southwest deal was found by Cheapflights users on 7/12. 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.
vie. 7/3110:25 am
SJC
- ISP
2 stops10h 15m
Southwest
dom. 8/26:00 am
ISP
- SJC
1 stop12h 30m
Southwest
Deal found 7/12![Southwest logo]()
$899
This Southwest deal was found by Cheapflights users on 7/12. 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.
vie. 8/710:30 pm
SJC
- ISP
1 stop10h 35m
Southwest
dom. 8/96:20 am
ISP
- SJC
1 stop9h 55m
Southwest
Deal found 7/12![Southwest logo]()
$627
This Southwest deal was found by Cheapflights users on 7/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/1910:30 pm
SJC
- ISP
1 stop8h 10m
Southwest
mié. 8/2612:55 pm
ISP
- SJC
1 stop8h 25m
Southwest
Deal found 7/15![Southwest logo]()
$363
This United deal was found by Cheapflights users on 7/15. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/196:37 pm
SJC
- ISP
3 stops22h 38m
Multiple Airlines
mié. 8/267:31 am
ISP
- SJC
2 stops18h 19m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$1,050
One-way flights from San Jose to IslipSearch for one-way flight options from San Jose to Islip. Find affordable one-way fares based on user searches. Data last updated julio 17, 2026.
Search for one-way flight options from San Jose to Islip. Find affordable one-way fares based on user searches. Data last updated julio 17, 2026.
This Southwest deal was found by Cheapflights users on 7/14. 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.
mié. 9/210:30 pm
SJC
- ISP
1 stop8h 10m
Southwest
Deal found 7/14![Southwest logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/25:21 pm
SJC
- ISP
3 stops37h 32m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$495
Find flight deals from San Jose to Islip
Discover tips and strategies to find the most affordable flight options for your journey from San Jose (SJC) to Islip (ISP). 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 julio 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $363 (Southwest) |
One-way from | $182 (Southwest) |
Popular in | June |
Cheapest in | February |
Average price | $454 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Jose 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 julio 17, 2026.
Use the filters below to find and compare flights from San Jose to Islip that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
San JoseIslip
SJC - ISP
SJCISP
San Jose
jue. 8/27
10:30 pm-9:40 am
1 stop8h 10m
Islip Long Island
sáb. 8/29
11:55 am-8:30 pm
2 stops11h 35m
$368
San JoseIslip
SJC - ISP
SJCISP
San Jose
mié. 8/19
8:15 pm-9:40 am
2 stops10h 25m
Islip Long Island
mié. 8/26
6:05 am-12:45 pm
2 stops9h 40m
$373
San JoseIslip
SJC - ISP
SJCISP
San Jose
mié. 9/2
11:00 pm-12:35 pm
2 stops10h 35m
Islip Long Island
lun. 9/7
6:10 am-1:00 pm
1 stop9h 50m
$430
San JoseIslip
SJC - ISP
SJCISP
San Jose
vie. 7/31
10:25 am-11:40 pm
2 stops10h 15m
Islip Long Island
lun. 8/3
6:00 am-1:55 pm
2 stops10h 55m
$577
San JoseIslip
SJC - ISP
SJCISP
San Jose
vie. 8/7
10:30 pm-12:05 pm
1 stop10h 35m
Islip Long Island
dom. 8/9
6:20 am-1:15 pm
1 stop9h 55m
$627
San JoseIslip
SJC - ISP
SJCISP
San Jose
mié. 12/23
11:00 pm-11:50 am
2 stops9h 50m
Islip Long Island
dom. 12/27
6:05 am-1:25 pm
1 stop10h 20m
$795
Cheapest one-way
Quickest one-way
San JoseIslip
SJC - ISP
SJCISP
San Jose
mié. 9/2
10:30 pm-9:40 am
1 stop8h 10m
$182
San JoseIslip
SJC - ISP
SJCISP
San Jose
mié. 9/2
5:21 pm-9:53 am
3 stops37h 32m
$495
Sorted by cheapest first
- Most accurate provider: When it comes to deals on San Jose, California-Islip, New York flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Jose, California-Islip, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Jose, California-Islip, New York flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Jose, California-Islip, New York 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 San Jose, California-Islip, New York 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 San Jose to Islip
Have a flexible travel schedule? Discover the best time to fly to Islip from San Jose with our price prediction graph.
SJC-ISP
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.
Related info for your journey
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