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Sky Harbor Intl

$159+ Cheap flights from Islip (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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — PHX
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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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 September 11, 2025.

Round-trip from

$237
(Expedia)

One-way from

$159
(JetBlue)

Popular in

June

Cheapest in

April

Average price

$396
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
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Highest demand for flights based on searches. 19% potential increase in price ($116 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 11, 2025.

This Frontier deal was found by Cheapflights users on 9/11. 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 9/2511:40 amISP - PHX
2 stops22h 52mFrontier
Mon 9/2912:31 pmPHX - ISP
2 stops19h 09mFrontier
Deal found 9/11$266
This Frontier deal was found by Cheapflights users on 9/11. 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 10/154:58 pmISP - PHX
2 stops18h 01mFrontier
Thu 10/2310:59 pmPHX - ISP
1 stop8h 38mFrontier
Deal found 9/11$285
This Expedia deal was found by Cheapflights users on 9/10. 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 11/131:57 pmISP - PHX
1 stop10h 52mJetBlue
Sun 11/1611:07 pmPHX - ISP
1 stop11h 55mJetBlue
Deal found 9/10$319
This Frontier deal was found by Cheapflights users on 9/10. 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.
Sat 10/2512:38 pmISP - PHX
2 stops22h 46mFrontier
Sat 11/16:11 pmPHX - ISP
2 stops11h 51mFrontier
Deal found 9/10$326
This Frontier deal was found by Cheapflights users on 9/11. 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 10/179:49 amISP - PHX
2 stops17h 05mFrontier
Mon 10/207:59 pmPHX - ISP
2 stops10h 45mFrontier
Deal found 9/11$370
This Frontier deal was found by Cheapflights users on 9/11. 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 10/169:49 amISP - PHX
2 stops16h 27mFrontier
Mon 10/2012:44 pmPHX - ISP
2 stops18h 00mFrontier
Deal found 9/11$375
This Southwest deal was found by Cheapflights users on 9/10. 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 12/15:50 pmISP - PHX
1 stop8h 20mSouthwest
Mon 12/85:30 amPHX - ISP
1 stop7h 50mSouthwest
Deal found 9/10$387
This Southwest deal was found by Cheapflights users on 9/10. 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 11/135:30 pmISP - PHX
1 stop8h 35mSouthwest
Sun 11/161:50 pmPHX - ISP
2 stops8h 00mSouthwest
Deal found 9/10$393
This Southwest deal was found by Cheapflights users on 9/11. 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 10/1111:55 amISP - PHX
2 stops10h 20mSouthwest
Sat 10/188:05 amPHX - ISP
2 stops10h 30mSouthwest
Deal found 9/11$400

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 September 11, 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

Wed 1/28

12:05 pm-10:49 pm

1 stop12h 44m

Phoenix Sky Harbor Intl

Wed 2/4

11:05 pm-11:20 am

1 stop10h 15m

$237

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Wed 1/28

3:45 pm-11:40 pm

2 stops9h 55m

Phoenix Sky Harbor Intl

Wed 2/4

5:30 am-4:15 pm

1 stop8h 45m

$254

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 9/25

11:40 am-7:32 am

2 stops22h 52m

Phoenix Sky Harbor Intl

Mon 9/29

12:31 pm-10:40 am

2 stops19h 09m

$266

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Wed 10/15

4:58 pm-7:59 am

2 stops18h 01m

Phoenix Sky Harbor Intl

Thu 10/23

10:59 pm-10:37 am

1 stop8h 38m

$285

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Sat 10/25

12:38 pm-8:24 am

2 stops22h 46m

Phoenix Sky Harbor Intl

Sat 11/1

6:11 pm-9:02 am

2 stops11h 51m

$326

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Fri 1/16

4:05 pm-10:10 pm

1 stop8h 05m

Phoenix Sky Harbor Intl

Mon 1/19

5:00 am-4:25 pm

1 stop9h 25m

$368

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Fri 10/17

9:49 am-11:54 pm

2 stops17h 05m

Phoenix Sky Harbor Intl

Mon 10/20

7:59 pm-9:44 am

2 stops10h 45m

$370

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 10/16

9:49 am-11:16 pm

2 stops16h 27m

Phoenix Sky Harbor Intl

Mon 10/20

12:44 pm-9:44 am

2 stops18h 00m

$375

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 11/13

1:57 pm-10:49 pm

1 stop10h 52m

$159

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 11/27

10:02 am-10:53 pm

1 stop14h 51m

$173

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 19 results
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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 to Phoenix Sky Harbor Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Islip to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Islip to Phoenix Sky Harbor Intl Airport in March is currently the most expensive (average of $337). 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 September 11, 2025.

A simple way to save on the total cost of your ticket is to fly from Islip to Phoenix Sky Harbor Intl Airport in the morning. If you’re flexible enough to do this you can expect to save up to 44% on your trip compared to booking a flight at noon.

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 September 11, 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
4,248 reviews

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

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
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

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 to Phoenix Sky Harbor Intl Airport?

    There are many flights that can get you from Islip to Phoenix Sky Harbor Intl Airport in 9h 55m. Fly via JetBlue, Southwest, or Frontier to get the fastest option. Islip and Phoenix Sky Harbor Intl Airport are separated by a distance of 2182 mi. This flight may include one or multiple stops.

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

    Southwest, at $337, was found to be the cheapest airline from Islip to Phoenix Sky Harbor Intl Airport.. Users have found that Southwest is 28% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Islip to Phoenix Sky Harbor Intl Airport one-way?

    One-way options have recently been found by users for as low as $159 on JetBlue. Other airlines that offer cheap prices include Frontier from $173 and Southwest from $194 one-way.

  • 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 to Phoenix Sky Harbor Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Islip to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Islip to Phoenix Sky Harbor Intl Airport in March is currently the most expensive (average of $337). 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
Payson
Glendale
Chandler
Globe
Goodyear
Casa Grande
Buckeye
Camp Verde
Surprise
Peoria
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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$337Average$456FlexibilityNo cancel feeOn-time63%

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