HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Islip

$190+ Cheap flights from Sky Harbor Intl (PHX) 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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ISP
Aug 6 — Aug 131
Thu 8/6
Thu 8/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Sky Harbor Intl 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 Sky Harbor Intl to Islip

Cheapest flights from Sky Harbor Intl to Islip
Explore the most affordable flight options available from Sky Harbor Intl to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 7, 2026.

This Southwest deal was found by Cheapflights users on 7/2. 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 8/1111:10 pm
PHX
-
ISP
1 stop8h 05m
Southwest
Wed 8/1912:55 pm
ISP
-
PHX
1 stop9h 35m
Southwest
Deal found 7/2$311
This Southwest deal was found by Cheapflights users on 7/4. 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.
Wed 8/511:05 pm
PHX
-
ISP
1 stop9h 50m
Southwest
Tue 8/1112:55 pm
ISP
-
PHX
1 stop9h 35m
Southwest
Deal found 7/4$407
This Frontier deal was found by Cheapflights users on 7/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2310:51 pm
PHX
-
ISP
1 stop13h 12m
Frontier
Mon 10/264:13 pm
ISP
-
PHX
1 stop10h 43m
Frontier
Deal found 7/4$422
This Expedia deal was found by Cheapflights users on 7/5. 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.
Mon 8/312:12 am
PHX
-
ISP
1 stop30h 41m
Frontier
Mon 8/1010:57 am
ISP
-
PHX
1 stop26h 38m
Frontier
Deal found 7/5$424
This Southwest deal was found by Cheapflights users on 7/5. 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.
Thu 9/1011:10 pm
PHX
-
ISP
1 stop7h 30m
Southwest
Tue 9/156:05 am
ISP
-
PHX
1 stop7h 20m
Southwest
Deal found 7/5$437
This Southwest deal was found by Cheapflights users on 7/5. 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 8/411:10 pm
PHX
-
ISP
1 stop8h 05m
Southwest
Mon 8/106:10 am
ISP
-
PHX
2 stops8h 45m
Southwest
Deal found 7/5$442
This Expedia deal was found by Cheapflights users on 7/4. 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.
Wed 8/512:12 am
PHX
-
ISP
1 stop30h 41m
Frontier
Mon 8/1010:57 am
ISP
-
PHX
1 stop26h 38m
Frontier
Deal found 7/4$444

Find flight deals from Sky Harbor Intl to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) 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 July 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$311
(Southwest)

One-way from

$190
(Frontier)

Popular in

June

Cheapest in

March

Average price

$553
Provider with most accurate pricing for Phoenix Sky Harbor Intl-Islip Long Island flight deals.
Search Deals
Provider most trusted by Cheapflights users for Phoenix Sky Harbor Intl-Islip Long Island flights.
Search Deals
From Phoenix Sky Harbor Intl to Islip Long Island
Search Deals
One-way flight from Phoenix Sky Harbor Intl to Islip Long Island
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sky Harbor Intl 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 July 7, 2026.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Islip that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Tue 8/11

11:10 pm-10:15 am

1 stop8h 05m

Islip Long Island

Wed 8/19

12:55 pm-7:30 pm

1 stop9h 35m

$311

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Wed 8/5

11:05 pm-11:55 am

1 stop9h 50m

Islip Long Island

Tue 8/11

12:55 pm-7:30 pm

1 stop9h 35m

$407
Quickest round-trip

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Thu 9/10

11:10 pm-9:40 am

1 stop7h 30m

Islip Long Island

Tue 9/15

6:05 am-10:25 am

1 stop7h 20m

$437

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Fri 8/21

9:40 am-9:30 pm

1 stop8h 50m

Islip Long Island

Sun 8/23

4:35 pm-10:45 pm

1 stop9h 10m

$467
Cheapest one-way

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Mon 10/12

10:51 pm-3:03 pm

1 stop13h 12m

$190
Quickest one-way

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Sun 10/25

10:51 pm-9:33 am

1 stop7h 42m

$211

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Sun 8/23

10:33 pm-4:47 pm

3 stops39h 14m

$223

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Thu 8/20

11:05 pm-11:55 am

1 stop9h 50m

$234

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Thu 9/10

9:40 am-9:30 pm

1 stop8h 50m

$234

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Mon 8/17

6:24 am-4:47 pm

3 stops31h 23m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Compare providers for flights from Sky Harbor Intl 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 Sky Harbor Intl to Islip in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 Phoenix Sky Harbor Intl Airport-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 Phoenix Sky Harbor Intl Airport-Islip, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Phoenix Sky Harbor Intl Airport-Islip, New York flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Phoenix Sky Harbor Intl Airport-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 Phoenix Sky Harbor Intl Airport-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 Sky Harbor Intl to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Sky Harbor Intl 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 Phoenix Sky Harbor Intl Airport to Islip

How much does it cost to fly round-trip from Phoenix Sky Harbor Intl Airport to Islip, New York?

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. 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 Islip. Reviews last updated July 7, 2026.
Read through reviews of airlines operating flights from Phoenix Sky Harbor Intl Airport to Islip, such as Southwest. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,250 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

7.9

Crew

8.6

Reviews

1 / 20
6.0
Good

Sharilynn,May 2024

HOU - LGA

The free WiFi was so bad, I couldn’t even watch an inflight movie.
Southwest
7.9
Good
4,250 reviews
Southwest
7.9
Good
4,250 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

7.9

Crew

8.6

Reviews

1 / 20
6.0
Good

Sharilynn,May 2024

HOU - LGA

The free WiFi was so bad, I couldn’t even watch an inflight movie.

Related info for your journey

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

  • What airport do you fly into for flights to Islip from Phoenix Sky Harbor Intl?

    For a flight from Phoenix Sky Harbor Intl to Islip, you will be flying into Long Island. Islip Long Island (ISP) is just 7.2 mi from the center of the city. Long Island is the only Islip airport and it handles 0 inbound flights from Phoenix Sky Harbor Intl per day. 1 airline has flights to Islip Long Island from Phoenix Sky Harbor Intl on a regular basis.

  • How long is the flight from Phoenix Sky Harbor Intl Airport to Islip, New York?

    Airlines like Southwest fly from Phoenix Sky Harbor Intl Airport to Islip, New York in about 8h 05m. The time it takes to get you to your destination can typically vary by up to . The distance between Phoenix Sky Harbor Intl Airport and Islip, New York is about 2182 mi.

  • What is the cheapest airline to fly from Phoenix Sky Harbor Intl Airport to Islip, New York round-trip?

    Currently priced at $342, Southwest will fly you from Phoenix Sky Harbor Intl Airport to Islip, New York and back. In addition to Southwest, many other airlines offer competitively priced options for your trip. This flight start at 24% lower than the current average price 3 months from now.

  • Can I find deals for flights from Sky Harbor Intl to Islip that include hotel bookings?

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

  • How can I find direct flights from Sky Harbor Intl to Islip?

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

  • Can I find deals for business class flights from Sky Harbor Intl to Islip?

    Yes. Cheapflights offers flight deals from Sky Harbor Intl 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.

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.

Top airline flying from Sky Harbor Intl to Islip

Discover the top airline that operate flights from Sky Harbor Intl to Islip. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$342Average$471FlexibilityNo cancel feeOn-time63%

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.