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Sky Harbor Intl

$111+ Cheap flights from Islip, NY (ISP) to Sky Harbor Intl (PHX)

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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — PHX
May 24 — May 311
Sun 5/24
Sun 5/31
1 adult, Economy
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Cheap flight deals from Islip to Sky Harbor Intl

Cheapest flights from Islip to Sky Harbor Intl
Explore the most affordable flight options available from Islip to Sky Harbor Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2026.

This CheapOair deal was found by Cheapflights users on 4/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2711:00 am
ISP
-
PHX
1 stop26h 45m
Frontier
Thu 5/2812:20 am
PHX
-
ISP
1 stop30h 45m
Frontier
Deal found 4/23$230
This Expedia deal was found by Cheapflights users on 4/19. 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.
Thu 5/2811:00 am
ISP
-
PHX
1 stop26h 45m
Frontier
Mon 6/112:20 am
PHX
-
ISP
1 stop13h 57m
Frontier
Deal found 4/19$235
This CheapOair deal was found by Cheapflights users on 4/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/410:48 am
ISP
-
PHX
1 stop26h 39m
Frontier
Fri 8/2112:23 am
PHX
-
ISP
1 stop30h 40m
Frontier
Deal found 4/20$250
This CheapOair deal was found by Cheapflights users on 4/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3111:00 am
ISP
-
PHX
1 stop26h 45m
Frontier
Mon 6/812:35 am
PHX
-
ISP
1 stop12h 21m
Frontier
Deal found 4/23$270
This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
Tue 6/26:02 pm
ISP
-
PHX
1 stop19h 43m
Frontier
Tue 6/99:15 am
PHX
-
ISP
2 stops21h 48m
Frontier
Deal found 4/21$284
This Kiwi.com deal was found by Cheapflights users on 4/19. 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.
Wed 5/2711:00 am
ISP
-
PHX
1 stop26h 45m
Frontier
Tue 6/26:51 pm
PHX
-
ISP
2 stops12h 14m
Frontier
Deal found 4/19$343
This Southwest deal was found by Cheapflights users on 4/21. 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 6/26:30 am
ISP
-
PHX
2 stops9h 35m
Southwest
Tue 6/95:15 am
PHX
-
ISP
2 stops7h 45m
Southwest
Deal found 4/21$346
This Southwest deal was found by Cheapflights users on 4/19. 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 6/26:30 am
ISP
-
PHX
2 stops9h 30m
Southwest
Tue 6/210:30 pm
PHX
-
ISP
1 stop10h 25m
Southwest
Deal found 4/19$347
This Trip.com deal was found by Cheapflights users on 4/19. 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.
Wed 5/611:00 am
ISP
-
PHX
2 stops29h 09m
Frontier
Sat 5/1612:29 pm
PHX
-
ISP
2 stops18h 58m
Frontier
Deal found 4/19$361
This Southwest deal was found by Cheapflights users on 4/23. 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 8/1912:55 pm
ISP
-
PHX
1 stop7h 10m
Southwest
Thu 8/205:10 am
PHX
-
ISP
1 stop8h 15m
Southwest
Deal found 4/23$366

Find flight deals from Islip to Sky Harbor Intl

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Sky Harbor Intl (PHX). 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 April 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$230
(CheapOair)

One-way from

$111
(CheapOair)

Popular in

June

Cheapest in

August

Average price

$577
Provider with most accurate pricing for Islip Long Island-Phoenix Sky Harbor Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Islip Long Island-Phoenix Sky Harbor Intl flights.
Search Deals
From Islip Long Island to Phoenix Sky Harbor Intl
Search Deals
One-way flight from Islip Long Island to Phoenix Sky Harbor Intl
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($129 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Sky Harbor Intl 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 April 24, 2026.
Use the filters below to find and compare flights from Islip to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Tue 6/2

6:30 am-1:05 pm

2 stops9h 35m

Phoenix Sky Harbor Intl

Tue 6/2

11:40 pm-11:55 am

2 stops9h 15m

$346

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Tue 6/2

6:30 am-1:05 pm

2 stops9h 35m

Phoenix Sky Harbor Intl

Tue 6/9

5:15 am-4:00 pm

2 stops7h 45m

$346

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Tue 6/16

4:40 pm-11:10 pm

2 stops9h 30m

Phoenix Sky Harbor Intl

Sat 6/20

11:05 pm-11:45 am

2 stops9h 40m

$447

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Tue 5/19

6:30 am-12:15 pm

1 stop8h 45m

Phoenix Sky Harbor Intl

Tue 5/26

10:30 pm-1:50 pm

1 stop12h 20m

$452

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Tue 5/19

6:30 am-1:05 pm

2 stops9h 35m

Phoenix Sky Harbor Intl

Wed 5/20

7:05 am-6:30 pm

2 stops8h 25m

$452

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Tue 5/12

6:30 am-1:05 pm

2 stops9h 35m

Phoenix Sky Harbor Intl

Mon 5/18

11:55 pm-11:55 am

2 stops9h 00m

$466

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Fri 5/8

4:30 pm-8:40 pm

1 stop7h 10m

Phoenix Sky Harbor Intl

Tue 5/12

10:30 pm-1:50 pm

1 stop12h 20m

$481

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 5/21

6:00 am-1:00 pm

2 stops10h 00m

Phoenix Sky Harbor Intl

Thu 5/28

11:00 am-11:30 pm

2 stops9h 30m

$513
Quickest round-trip

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Fri 5/15

4:30 pm-8:40 pm

1 stop7h 10m

Phoenix Sky Harbor Intl

Thu 5/21

11:00 am-11:30 pm

2 stops9h 30m

$514

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 5/7

4:30 pm-8:40 pm

1 stop7h 10m

Phoenix Sky Harbor Intl

Mon 5/11

10:30 pm-11:55 am

1 stop10h 25m

$521

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Islip to Sky Harbor Intl

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 Islip to Sky Harbor Intl in April.
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 Islip, New York-Phoenix Sky Harbor Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Islip, New York-Phoenix Sky Harbor Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Islip, New York-Phoenix Sky Harbor Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Islip, New York-Phoenix Sky Harbor Intl Airport 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 Islip, New York-Phoenix Sky Harbor Intl Airport 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 Islip to Sky Harbor Intl

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

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

Reviews of airlines servicing Sky Harbor Intl

Get insights into the airlines that provide service to Sky Harbor Intl. 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 Sky Harbor Intl. Reviews last updated April 24, 2026.
Get a feel of what it's like to fly with Southwest from Islip to Phoenix Sky Harbor Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,334 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,334 reviews
Southwest
8.0
Very good
4,334 reviews

Comfort

8.0

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from Islip to Sky Harbor Intl. 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 from for flights from Islip to Phoenix Sky Harbor Intl?

    For a flight from Islip to Phoenix Sky Harbor Intl, you will be flying from 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 outbound flights to Phoenix Sky Harbor Intl per day. 1 airline has flights to Phoenix Sky Harbor Intl from Islip Long Island on a regular basis.

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

    Southwest can get you from Islip, New York to Phoenix Sky Harbor Intl Airport in just under 9h 35m. Your travel time can differ by up to . The distance from Islip, New York to Phoenix Sky Harbor Intl Airport is about 2182 mi.

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

    Currently priced at $332, Southwest will fly you from Islip, New York to Phoenix Sky Harbor Intl Airport and back. In addition to Southwest, many other airlines offer competitively priced options for your trip. Southwest is currently priced 37% below the average price you’ll pay for this route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Islip to Sky Harbor Intl 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 Phoenix Sky Harbor Intl Airport?

Book flights to Phoenix Sky Harbor Intl Airport if you plan to visit one of these locations
Goodyear
Glendale
Paradise Valley
Casa Grande
Peoria
Chandler
Payson
Buckeye
Camp Verde
Globe
Surprise
Guadalupe

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Islip to Sky Harbor Intl

Discover the top airline that operate flights from Islip to Sky Harbor Intl. 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 April 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$332Average$472FlexibilityNo cancel feeOn-time63%

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