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Sky Harbor Intl

$137+ 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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — PHX
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Find 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 October 28, 2025.

This CheapOair deal was found by Cheapflights users on 10/27. 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.
Thu 11/2010:02 amISP - PHX
1 stop15h 09mFrontier
Thu 11/2710:55 pmPHX - ISP
1 stop9h 42mFrontier
Deal found 10/27$289
This CheapOair deal was found by Cheapflights users on 10/27. 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.
Mon 11/249:02 amISP - PHX
1 stop16h 09mFrontier
Thu 11/2710:55 pmPHX - ISP
1 stop9h 42mFrontier
Deal found 10/27$324
This JetBlue deal was found by Cheapflights users on 10/26. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/141:55 pmISP - PHX
1 stop10h 35mJetBlue
Tue 11/1811:07 pmPHX - ISP
1 stop11h 11mJetBlue
Deal found 10/26$335
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:40 pmISP - PHX
1 stop31h 11mFrontier
Fri 12/2612:59 amPHX - ISP
1 stop14h 56mFrontier
Deal found 10/28$339
This Southwest deal was found by Cheapflights users on 10/26. 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 12/36:15 amISP - PHX
1 stop11h 30mSouthwest
Mon 12/85:30 amPHX - ISP
1 stop7h 50mSouthwest
Deal found 10/26$359
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 11/259:09 pmISP - PHX
1 stop28h 02mMultiple Airlines
Tue 12/22:30 pmPHX - ISP
2 stops30h 14mMultiple Airlines
Deal found 10/27$372
This Southwest deal was found by Cheapflights users on 10/27. 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.
Mon 12/812:55 pmISP - PHX
2 stops9h 05mSouthwest
Mon 12/155:30 amPHX - ISP
1 stop7h 50mSouthwest
Deal found 10/27$374
This Frontier deal was found by Cheapflights users on 10/26. 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.
Mon 12/222:04 pmISP - PHX
1 stop11h 45mFrontier
Mon 12/2912:59 amPHX - ISP
1 stop8h 26mFrontier
Deal found 10/26$379
This Frontier deal was found by Cheapflights users on 10/26. 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.
Tue 12/2312:20 pmISP - PHX
1 stop13h 29mFrontier
Sun 12/2812:59 amPHX - ISP
1 stop10h 10mFrontier
Deal found 10/26$386
This Southwest deal was found by Cheapflights users on 10/26. 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 12/113:55 pmISP - PHX
1 stop8h 35mSouthwest
Sun 12/142:20 pmPHX - ISP
1 stop7h 30mSouthwest
Deal found 10/26$403

Cheap 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$289
(CheapOair)

One-way from

$137
(CheapOair)

Popular in

October

Cheapest in

April

Average price

$904
Provider with most accurate pricing for Islip Long Island-Phoenix Sky Harbor Intl flight deals.
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Provider most trusted by Cheapflights users for Islip Long Island-Phoenix Sky Harbor Intl flights.
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From Islip Long Island to Phoenix Sky Harbor Intl
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One-way flight from Islip Long Island to Phoenix Sky Harbor Intl
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($78 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 October 28, 2025.
Use the filters below to find and compare flights from Islip to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Islip

Fly to

Sky Harbor Intl

Route

Depart

Return

Price

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 11/20

10:02 am-11:11 pm

1 stop15h 09m

Phoenix Sky Harbor Intl

Thu 11/27

10:55 pm-10:37 am

1 stop9h 42m

$289

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 4/23

11:40 am-9:45 pm

1 stop13h 05m

Phoenix Sky Harbor Intl

Tue 4/28

10:05 pm-11:50 am

1 stop10h 45m

$294

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Wed 4/22

11:40 am-9:45 pm

1 stop13h 05m

Phoenix Sky Harbor Intl

Tue 4/28

10:05 pm-11:50 am

1 stop10h 45m

$314

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Fri 11/14

1:55 pm-10:30 pm

1 stop10h 35m

Phoenix Sky Harbor Intl

Tue 11/18

11:07 pm-12:18 pm

1 stop11h 11m

$335

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Sat 12/20

6:40 pm-11:51 pm

1 stop31h 11m

Phoenix Sky Harbor Intl

Fri 12/26

12:59 am-5:55 pm

1 stop14h 56m

$339

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Tue 3/3

1:15 pm-10:45 pm

1 stop11h 30m

Phoenix Sky Harbor Intl

Thu 3/5

11:05 pm-11:25 am

1 stop10h 20m

$356

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Wed 12/3

6:15 am-3:45 pm

1 stop11h 30m

Phoenix Sky Harbor Intl

Mon 12/8

5:30 am-3:20 pm

1 stop7h 50m

$359

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Mon 12/8

5:40 am-1:50 pm

1 stop10h 10m

Phoenix Sky Harbor Intl

Mon 12/15

5:30 am-3:20 pm

1 stop7h 50m

$359

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Fri 4/24

11:40 am-9:45 pm

1 stop13h 05m

Phoenix Sky Harbor Intl

Tue 4/28

10:05 pm-11:50 am

1 stop10h 45m

$364

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 4/23

11:40 am-9:45 pm

1 stop13h 05m

Phoenix Sky Harbor Intl

Mon 4/27

10:05 pm-12:20 pm

1 stop11h 15m

$371

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 21 results
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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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Islip, New York-Phoenix Sky Harbor Intl Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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

What is the cheapest month to book a flight from Islip, New York to Phoenix Sky Harbor Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Islip, New York to Phoenix Sky Harbor Intl Airport (average of $134). Flying from Islip, New York to Phoenix Sky Harbor Intl Airport in June is currently the most expensive (average of $251). 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.

What is the cheapest time of day to fly from ISP to PHX?

Find hourly flight availability from Islip to Sky Harbor Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

A simple way to save on the total cost of your ticket is to fly from Islip, New York to Phoenix Sky Harbor Intl Airport in the evening. If you’re flexible enough to do this you can expect to save up to 51% on your trip compared to booking a flight in the afternoon.

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 October 28, 2025.
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
4,240 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,240 reviews
Southwest
8.0
Very good
4,240 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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?

    Frontier and JetBlue can get you from Islip, New York to Phoenix Sky Harbor Intl Airport in just under 13h 05m. Your travel time can differ by up to 2h 04m. The distance from Islip, New York to Phoenix Sky Harbor Intl Airport is about 2182 mi. This flight may include one or multiple stops.

  • 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 33% 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.

  • What is the cheapest month to book a flight from Islip, New York to Phoenix Sky Harbor Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Islip, New York to Phoenix Sky Harbor Intl Airport (average of $134). Flying from Islip, New York to Phoenix Sky Harbor Intl Airport in June is currently the most expensive (average of $251). 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 Phoenix Sky Harbor Intl Airport?

Book flights to Phoenix Sky Harbor Intl Airport if you plan to visit one of these locations
Glendale
Payson
Chandler
Casa Grande
Globe
Goodyear
Peoria
Camp Verde
Buckeye
Surprise
Paradise Valley
Avondale
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 October 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$332Average$453FlexibilityNo cancel feeOn-time63%

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