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$1,399+ Cheap flights from San Luis Obispo to Islip, NY (SBP - ISP)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/22. Fares are subject to change and may not be available on all flights or dates of travel.
SBP — ISP
nov. 27 — dic. 41
jue. 11/27
jue. 12/4
1 adult, Economy
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Cheap flight deals from San Luis Obispo to Islip

Discover tips and strategies to find the most affordable flight options for your journey from San Luis Obispo (SBP) 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 octubre 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$1,399
(Expedia)

Popular in

November

Cheapest in

August

Average price

$468
Provider with most accurate pricing for San Luis Obispo County-Islip Long Island flight deals.
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Provider most trusted by Cheapflights users for San Luis Obispo County-Islip Long Island flights.
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From San Luis Obispo County to Islip Long Island
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Highest demand for flights based on searches. 12% potential increase in price ($70 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from San Luis Obispo to Islip

Cheapest flights from San Luis Obispo to Islip
Explore the most affordable flight options available from San Luis Obispo to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 28, 2025.

This Expedia deal was found by Cheapflights users on 10/28. 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.
lun. 12/225:20 pmSBP - ISP
2 stops14h 44mMultiple Airlines
vie. 12/2612:40 pmISP - SBP
2 stops13h 55mMultiple Airlines
Deal found 10/28$1,399

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Luis Obispo 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 octubre 28, 2025.
Use the filters below to find and compare flights from San Luis Obispo to Islip that are best for you.

Fly from

San Luis Obispo

Fly to

Islip

Route

Depart

Return

Price

San Luis ObispoIslip

SBP - ISP

SBPISP

San Luis Obispo County

lun. 12/22

5:20 pm-11:04 am

2 stops14h 44m

Islip Long Island

vie. 12/26

12:40 pm-11:35 pm

2 stops13h 55m

$1,399

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

  • Most accurate provider: When it comes to deals on San Luis Obispo-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 Luis Obispo-Islip, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Luis Obispo-Islip, New York flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Luis Obispo-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 Luis Obispo-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 Luis Obispo to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from San Luis Obispo 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 Luis Obispo to Islip

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

Currently, August is the cheapest month in which you can book a flight from San Luis Obispo to Islip, New York (average of $184). Flying from San Luis Obispo to Islip, New York in December is currently the most expensive (average of $347). 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.

Related info for your journey

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

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from San Luis Obispo to Islip, New York (average of $184). Flying from San Luis Obispo to Islip, New York in December is currently the most expensive (average of $347). 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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