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Sky Harbor Intl

$156+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — PHX
Aug 26 — Sep 21
Wed 8/26
Wed 9/2
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 July 27, 2026.

This Frontier deal was found by Cheapflights users on 7/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:13 pm
ISP
-
PHX
1 stop10h 43m
Frontier
Mon 10/1910:51 pm
PHX
-
ISP
1 stop13h 12m
Frontier
Deal found 7/27$310
This Frontier deal was found by Cheapflights users on 7/26. 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.
Fri 10/94:13 pm
ISP
-
PHX
1 stop10h 43m
Frontier
Mon 10/1210:51 pm
PHX
-
ISP
1 stop13h 12m
Frontier
Deal found 7/26$328
This Frontier deal was found by Cheapflights users on 7/23. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/204:13 pm
ISP
-
PHX
1 stop10h 43m
Frontier
Fri 10/2310:51 pm
PHX
-
ISP
1 stop13h 12m
Frontier
Deal found 7/23$333
This Frontier deal was found by Cheapflights users on 7/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:13 pm
ISP
-
PHX
1 stop10h 43m
Frontier
Sat 10/2410:51 pm
PHX
-
ISP
1 stop7h 42m
Frontier
Deal found 7/27$338
This Frontier deal was found by Cheapflights users on 7/25. 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.
Thu 10/84:13 pm
ISP
-
PHX
1 stop10h 43m
Frontier
Mon 10/1210:51 pm
PHX
-
ISP
1 stop13h 12m
Frontier
Deal found 7/25$363
This Frontier deal was found by Cheapflights users on 7/26. 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.
Thu 10/154:13 pm
ISP
-
PHX
1 stop10h 43m
Frontier
Sun 10/1810:51 pm
PHX
-
ISP
1 stop7h 42m
Frontier
Deal found 7/26$365
This Southwest deal was found by Cheapflights users on 7/23. 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.
Fri 10/235:40 pm
ISP
-
PHX
1 stop9h 25m
Southwest
Fri 10/305:00 am
PHX
-
ISP
1 stop6h 30m
Southwest
Deal found 7/23$399
This Southwest deal was found by Cheapflights users on 7/27. 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 9/284:05 pm
ISP
-
PHX
1 stop9h 20m
Southwest
Wed 9/309:55 am
PHX
-
ISP
2 stops8h 15m
Southwest
Deal found 7/27$444

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 July 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$310
(Frontier)

One-way from

$156
(Southwest)

Popular in

December

Cheapest in

January

Average price

$351
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.
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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
High demand for flights, 3% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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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 July 27, 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

Fri 10/9

4:13 pm-11:56 pm

1 stop10h 43m

Phoenix Sky Harbor Intl

Mon 10/12

10:51 pm-3:03 pm

1 stop13h 12m

$345

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 10/8

4:13 pm-11:56 pm

1 stop10h 43m

Phoenix Sky Harbor Intl

Mon 10/12

10:51 pm-3:03 pm

1 stop13h 12m

$363

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 10/15

4:13 pm-11:56 pm

1 stop10h 43m

Phoenix Sky Harbor Intl

Sun 10/18

10:51 pm-9:33 am

1 stop7h 42m

$365
Quickest round-trip

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Fri 10/23

5:40 pm-12:05 am

1 stop9h 25m

Phoenix Sky Harbor Intl

Fri 10/30

5:00 am-2:30 pm

1 stop6h 30m

$399

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Mon 9/28

4:05 pm-10:00 pm

2 stops8h 55m

Phoenix Sky Harbor Intl

Wed 9/30

9:55 am-9:10 pm

2 stops8h 15m

$482

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Sun 8/23

6:20 am-1:40 pm

2 stops10h 20m

Phoenix Sky Harbor Intl

Sun 8/30

11:10 pm-9:40 am

1 stop7h 30m

$528

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Sat 8/15

3:15 pm-8:05 pm

1 stop7h 50m

Phoenix Sky Harbor Intl

Fri 8/28

11:10 pm-12:05 pm

1 stop9h 55m

$552

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Mon 8/17

12:35 pm-10:20 pm

1 stop12h 45m

Phoenix Sky Harbor Intl

Sun 8/23

11:05 pm-11:55 am

1 stop9h 50m

$554

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 8/13

12:35 pm-5:15 pm

1 stop7h 40m

Phoenix Sky Harbor Intl

Sun 8/16

11:05 pm-11:55 am

1 stop9h 50m

$573
Cheapest one-way
Quickest one-way

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Wed 8/26

12:55 pm-5:05 pm

1 stop7h 10m

$156

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/25

Showing 1-10 of 16 resultsSorted by cheapest first
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 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 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.

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 July 27, 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
4,228 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Sherrie,Jan 2024

LAX - PHX

It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.
Southwest
8.0
Very good
4,228 reviews
Southwest
8.0
Very good
4,228 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Sherrie,Jan 2024

LAX - PHX

It was a great flight overall. It took a long time to take off. We spent a long time waiting on the plane before departure.

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 can get you from Islip, New York to Phoenix Sky Harbor Intl Airport in just under 10h 43m. 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 $337, 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.

  • 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
Glendale
Buckeye
Goodyear
Surprise
Wickenburg
Paradise Valley
Peoria
Casa Grande
Chandler
Camp Verde
Globe
Payson
Fountain Hills
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 July 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$337Average$447FlexibilityNo cancel feeOn-time63%

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