HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Islip

$588+ Cheap flights from Oakland, CA to Islip, NY (OAK - 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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
OAK — ISP
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Oakland 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 Oakland to Islip

Cheapest flights from Oakland to Islip
Explore the most affordable flight options available from Oakland to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

This Southwest deal was found by Cheapflights users on 1/24. 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 2/177:55 am
OAK
-
ISP
2 stops11h 25m
Southwest
Fri 2/2011:55 am
ISP
-
OAK
2 stops13h 45m
Southwest
Deal found 1/24$589

Find flight deals from Oakland to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Oakland (OAK) 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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$589
(Southwest)

One-way from

$588
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$344
Provider with most accurate pricing for Oakland-Islip Long Island flight deals.
Search Deals
Provider most trusted by Cheapflights users for Oakland-Islip Long Island flights.
Search Deals
From Oakland to Islip Long Island
Search Deals
One-way flight from Oakland to Islip Long Island
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oakland 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 January 27, 2026.
Use the filters below to find and compare flights from Oakland to Islip that are best for you.

Fly from

Oakland

Fly to

Islip

Route

Depart

Return

Price

OaklandIslip

OAK - ISP

OAKISP

Oakland

Tue 2/17

7:55 am-10:20 pm

2 stops11h 25m

Islip Long Island

Fri 2/20

11:55 am-10:40 pm

2 stops13h 45m

$589

OaklandIslip

OAK - ISP

OAKISP

Oakland

Sat 2/21

5:31 pm-12:53 am

3 stops52h 22m

$588

OaklandIslip

OAK - ISP

OAKISP

Oakland

Sat 2/21

8:20 am-10:45 pm

2 stops11h 25m

$774

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Compare providers for flights from Oakland to Islip

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 Oakland to Islip in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust 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 Oakland, 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 Oakland, California-Islip, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Oakland, California-Islip, New York flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Oakland, 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 Oakland, 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 Oakland to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Oakland 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 Oakland to Islip

What is the cheapest month to book a flight from Oakland, California to Islip, New York?

Currently, February is the cheapest month in which you can book a flight from Oakland, California to Islip, New York (average of $96). Flying from Oakland, California to Islip, New York in June is currently the most expensive (average of $203). 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 Oakland to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Oakland, California to Islip, New York?

    For as low as $589, Southwest can have you in Islip, New York from Oakland, California in 11h 25m. There are 2601 mi between Oakland, California and Islip, New York.

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

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

  • How can I find direct flights from Oakland to Islip?

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

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

    Yes. Cheapflights offers flight deals from Oakland 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 Oakland, California to Islip, New York?

    Currently, February is the cheapest month in which you can book a flight from Oakland, California to Islip, New York (average of $96). Flying from Oakland, California to Islip, New York in June is currently the most expensive (average of $203). 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

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 Oakland to Islip

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to John F Kennedy Intl flights
San Francisco to John F Kennedy Intl flights
Los Angeles to Newark flights
San Francisco to Newark flights
Los Angeles to LaGuardia flights
San Francisco to LaGuardia flights
Burbank to LaGuardia flights
San Diego to John F Kennedy Intl flights
Santa Ana to Newark flights
Las Vegas to John F Kennedy Intl flights
San Diego to Newark flights
Ontario to John F Kennedy Intl flights
Ontario to Newark flights
Santa Ana to John F Kennedy Intl flights
Santa Ana to LaGuardia flights
Las Vegas to Newark flights
San Diego to LaGuardia flights
San Jose to John F Kennedy Intl flights
San Jose to Newark flights
Sacramento to Newark flights
Oakland to John F Kennedy Intl flights
Oakland to Newark flights
Burbank to John F Kennedy Intl flights
Ontario to LaGuardia flights
Sacramento to John F Kennedy Intl flights
Las Vegas to LaGuardia flights
Sacramento to LaGuardia flights
Burbank to Newark flights
San Jose to LaGuardia flights
Long Beach to John F Kennedy Intl flights
Los Angeles to White Plains flights
Fresno to John F Kennedy Intl flights
Palm Springs to John F Kennedy Intl flights
Los Angeles to Buffalo flights
Reno to John F Kennedy Intl flights
San Francisco to White Plains flights
Fresno to Newark flights
San Francisco to Syracuse flights
San Francisco to Albany flights
Reno to LaGuardia flights
Oakland to LaGuardia flights
Palm Springs to Newark flights
Fresno to LaGuardia flights
Reno to Newark flights
Santa Barbara to John F Kennedy Intl flights
Palm Springs to LaGuardia flights
Los Angeles to Syracuse flights
Los Angeles to Albany flights
San Diego to Buffalo flights
Monterey to Newark 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.