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Sky Harbor Intl

$90+ 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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — PHX
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
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 January 26, 2026.

This Expedia deal was found by Cheapflights users on 1/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/233:59 pm
ISP
-
PHX
1 stop32h 13m
Frontier
Fri 2/2711:59 pm
PHX
-
ISP
1 stop29h 49m
Frontier
Deal found 1/26$236
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/238:23 am
ISP
-
PHX
2 stops31h 21m
Multiple Airlines
Fri 2/2711:59 pm
PHX
-
ISP
1 stop9h 07m
Multiple Airlines
Deal found 1/26$253
This Orbitz deal was found by Cheapflights users on 1/26. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/14:07 pm
ISP
-
PHX
1 stop10h 11m
Frontier
Sat 5/212:30 am
PHX
-
ISP
1 stop29h 43m
Frontier
Deal found 1/26$290
This JetBlue deal was found by Cheapflights users on 1/25. 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.
Tue 3/31:27 pm
ISP
-
PHX
1 stop11h 22m
JetBlue
Tue 3/1010:05 pm
PHX
-
ISP
1 stop8h 57m
JetBlue
Deal found 1/25$297
This Frontier deal was found by Cheapflights users on 1/26. 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.
Wed 2/182:03 pm
ISP
-
PHX
1 stop10h 09m
Frontier
Wed 3/411:59 pm
PHX
-
ISP
1 stop12h 40m
Frontier
Deal found 1/26$302
This Frontier deal was found by Cheapflights users on 1/25. 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 2/238:23 am
ISP
-
PHX
1 stop11h 06m
Frontier
Thu 2/2611:59 pm
PHX
-
ISP
1 stop12h 40m
Frontier
Deal found 1/25$320
This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
Sun 2/228:33 am
ISP
-
PHX
1 stop11h 24m
Frontier
Sun 3/15:05 am
PHX
-
ISP
2 stops24h 33m
Frontier
Deal found 1/25$330
This CheapOair deal was found by Cheapflights users on 1/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/112:03 pm
ISP
-
PHX
1 stop10h 09m
Frontier
Sat 2/1411:59 pm
PHX
-
ISP
1 stop17h 07m
Frontier
Deal found 1/26$341
This CheapOair deal was found by Cheapflights users on 1/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/263:34 pm
ISP
-
PHX
1 stop28h 30m
Frontier
Sun 3/111:59 pm
PHX
-
ISP
1 stop12h 40m
Frontier
Deal found 1/26$371
This Southwest deal was found by Cheapflights users on 1/25. 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 3/312:40 pm
ISP
-
PHX
2 stops10h 55m
Southwest
Tue 3/106:05 am
PHX
-
ISP
1 stop7h 00m
Southwest
Deal found 1/25$392
This Southwest deal was found by Cheapflights users on 1/25. 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.
Sat 5/99:20 am
ISP
-
PHX
1 stop10h 00m
Southwest
Sat 5/1611:55 pm
PHX
-
ISP
1 stop8h 15m
Southwest
Deal found 1/25$393

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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$236
(Expedia)

One-way from

$90
(Frontier)

Popular in

December

Cheapest in

March

Average price

$437
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. 10% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($23 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 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 January 26, 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

Islip

Fly to

Sky Harbor Intl

Route

Depart

Return

Price

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Mon 2/23

3:59 pm-10:12 pm

1 stop32h 13m

Phoenix Sky Harbor Intl

Fri 2/27

11:59 pm-7:48 am

1 stop29h 49m

$236

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Mon 2/23

8:23 am-1:44 pm

2 stops31h 21m

Phoenix Sky Harbor Intl

Fri 2/27

11:59 pm-11:06 am

1 stop9h 07m

$253

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Tue 3/3

1:27 pm-10:49 pm

1 stop11h 22m

Phoenix Sky Harbor Intl

Tue 3/10

10:05 pm-10:02 am

1 stop8h 57m

$297

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Wed 2/18

2:03 pm-10:12 pm

1 stop10h 09m

Phoenix Sky Harbor Intl

Wed 3/4

11:59 pm-2:39 pm

1 stop12h 40m

$302

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Wed 2/11

2:03 pm-10:12 pm

1 stop10h 09m

Phoenix Sky Harbor Intl

Sat 2/14

11:59 pm-7:06 pm

1 stop17h 07m

$341

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 2/26

3:34 pm-6:04 pm

1 stop28h 30m

Phoenix Sky Harbor Intl

Sun 3/1

11:59 pm-2:39 pm

1 stop12h 40m

$371

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Sat 5/9

9:20 am-4:20 pm

1 stop10h 00m

Phoenix Sky Harbor Intl

Sat 5/16

11:55 pm-11:10 am

1 stop8h 15m

$393

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Wed 2/11

2:03 pm-10:12 pm

1 stop10h 09m

Phoenix Sky Harbor Intl

Thu 2/12

11:59 pm-2:39 pm

1 stop12h 40m

$401

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Fri 2/20

1:28 pm-10:49 pm

1 stop11h 21m

Phoenix Sky Harbor Intl

Tue 2/24

11:05 pm-10:02 am

1 stop8h 57m

$414

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 3/12

5:55 pm-12:05 am

1 stop9h 10m

Phoenix Sky Harbor Intl

Thu 3/19

1:30 pm-11:55 pm

1 stop7h 25m

$420

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 20 results
1
2

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Expedia the most. Expedia 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, March is the cheapest month in which you can book a flight from Islip, New York to Phoenix Sky Harbor Intl Airport (average of $143). 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.

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 January 26, 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
4,268 reviews

Crew

8.6

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,268 reviews
Southwest
8.0
Very good
4,268 reviews

Crew

8.6

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 11h 22m. Your travel time can differ by up to 20h 51m. 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 30% 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, March is the cheapest month in which you can book a flight from Islip, New York to Phoenix Sky Harbor Intl Airport (average of $143). 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
Goodyear
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Casa Grande
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Payson
Camp Verde
Buckeye
Surprise
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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$332Average$487FlexibilityNo cancel feeOn-time63%

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