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Islip

$121+ Cheap flights from Sky Harbor Intl (PHX) to Islip, NY (ISP)

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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ISP
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Sky Harbor Intl to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) to Islip (ISP). 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 August 14, 2025.

Round-trip from

$244
(Booking.com)

One-way from

$121
(Cheapflightsfares)

Popular in

August

Cheapest in

December

Average price

$482
From Phoenix Sky Harbor Intl to Islip Long Island
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One-way flight from Phoenix Sky Harbor Intl to Islip Long Island
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Highest demand for flights based on searches. 13% potential increase in price ($65 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Sky Harbor Intl to Islip

Cheapest flights from Sky Harbor Intl to Islip
Explore the most affordable flight options available from Sky Harbor Intl to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Booking.com deal was found by Cheapflights users on 8/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/57:00 amPHX - ISP
2 stops30h 23mFrontier
Mon 9/85:05 pmISP - PHX
2 stops23h 00mFrontier
Deal found 8/13$244
This Frontier deal was found by Cheapflights users on 8/14. 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 10/227:30 pmPHX - ISP
2 stops10h 34mFrontier
Wed 10/294:58 pmISP - PHX
2 stops17h 52mFrontier
Deal found 8/14$245
This CheapOair deal was found by Cheapflights users on 8/14. 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 10/2210:59 pmPHX - ISP
1 stop18h 43mFrontier
Sat 10/254:58 pmISP - PHX
1 stop23h 19mFrontier
Deal found 8/14$248
This Frontier deal was found by Cheapflights users on 8/14. 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 9/46:18 pmPHX - ISP
2 stops13h 22mFrontier
Sun 9/79:49 amISP - PHX
2 stops16h 07mFrontier
Deal found 8/14$250
This Frontier deal was found by Cheapflights users on 8/14. 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 10/910:59 pmPHX - ISP
1 stop8h 38mFrontier
Sun 10/129:44 amISP - PHX
2 stops17h 10mFrontier
Deal found 8/14$265
This Frontier deal was found by Cheapflights users on 8/14. 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 9/135:07 pmPHX - ISP
2 stops12h 57mFrontier
Sat 9/205:05 pmISP - PHX
2 stops17h 27mFrontier
Deal found 8/14$269
This CheapOair deal was found by Cheapflights users on 8/14. 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 10/1110:59 pmPHX - ISP
1 stop18h 53mFrontier
Sun 10/199:47 pmISP - PHX
1 stop18h 30mFrontier
Deal found 8/14$298
This Southwest deal was found by Cheapflights users on 8/13. 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 12/45:30 amPHX - ISP
1 stop7h 50mSouthwest
Wed 12/1712:55 pmISP - PHX
1 stop11h 35mSouthwest
Deal found 8/13$309
This Southwest deal was found by Cheapflights users on 8/12. 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 9/910:55 pmPHX - ISP
2 stops13h 20mSouthwest
Tue 9/164:00 pmISP - PHX
2 stops9h 25mSouthwest
Deal found 8/12$320
This Southwest deal was found by Cheapflights users on 8/14. 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 9/1312:05 pmPHX - ISP
1 stop6h 35mSouthwest
Sat 9/205:40 amISP - PHX
1 stop7h 15mSouthwest
Deal found 8/14$325

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sky Harbor Intl to Islip 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 August 14, 2025.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Islip that are best for you.

Fly from

Sky Harbor Intl

Fly to

Islip

Route

Depart

Return

Price

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Fri 9/5

7:00 am-4:23 pm

2 stops30h 23m

Islip Long Island

Mon 9/8

5:05 pm-1:05 pm

2 stops23h 00m

$244

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Wed 10/22

7:30 pm-9:04 am

2 stops10h 34m

Islip Long Island

Wed 10/29

4:58 pm-7:50 am

2 stops17h 52m

$245

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Wed 10/22

10:59 pm-8:42 pm

1 stop18h 43m

Islip Long Island

Sat 10/25

4:58 pm-1:17 pm

1 stop23h 19m

$248

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Thu 9/4

6:18 pm-10:40 am

2 stops13h 22m

Islip Long Island

Sun 9/7

9:49 am-10:56 pm

2 stops16h 07m

$250

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Thu 10/9

10:59 pm-10:37 am

1 stop8h 38m

Islip Long Island

Sun 10/12

9:44 am-11:54 pm

2 stops17h 10m

$265

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Sat 9/13

5:07 pm-9:04 am

2 stops12h 57m

Islip Long Island

Sat 9/20

5:05 pm-7:32 am

2 stops17h 27m

$269

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Sat 10/11

10:59 pm-8:52 pm

1 stop18h 53m

Islip Long Island

Sun 10/19

9:47 pm-1:17 pm

1 stop18h 30m

$298

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Tue 9/9

10:00 am-9:05 pm

1 stop8h 05m

Islip Long Island

Tue 9/16

4:00 pm-10:25 pm

2 stops9h 25m

$309

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Thu 12/4

5:30 am-3:20 pm

1 stop7h 50m

Islip Long Island

Wed 12/17

12:55 pm-10:30 pm

1 stop11h 35m

$309

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Thu 9/25

8:20 pm-9:04 am

2 stops9h 44m

$121

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 18 results
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Best time to book a flight from Sky Harbor Intl to Islip

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

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

Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Islip, New York (average of $108). Flying from Phoenix Sky Harbor Intl Airport to Islip, New York in November is currently the most expensive (average of $213). 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 PHX to ISP?

Find hourly flight availability from Sky Harbor Intl to Islip. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 62% on flights from Phoenix Sky Harbor Intl Airport to Islip, New York by exploring options for tickets in the afternoon.

Reviews of airlines servicing Islip

Get insights into the airlines that provide service to Islip. 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 Islip. Reviews last updated August 14, 2025.
Read through reviews of airlines operating flights from Phoenix Sky Harbor Intl Airport to Islip, such as Southwest and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,244 reviews

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,217 reviews
Southwest
8.0
Very good
4,244 reviews

Crew

8.6

Boarding

8.1

Food

7.0

Comfort

8.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

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

    For a flight from Phoenix Sky Harbor Intl to Islip, you will be flying into 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 inbound flights from Phoenix Sky Harbor Intl per day. 2 airlines have flights to Islip Long Island from Phoenix Sky Harbor Intl on a regular basis.

  • What are the cheapest airlines flying from Phoenix Sky Harbor Intl Airport to Islip, New York round-trip?

    Currently priced at $157, Frontier will fly you from Phoenix Sky Harbor Intl Airport to Islip, New York and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Southwest for as low as $350. These flights start at 61% lower than the current average price 3 months from now.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Islip, New York (average of $108). Flying from Phoenix Sky Harbor Intl Airport to Islip, New York in November is currently the most expensive (average of $213). 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 Islip?

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Top 2 airlines flying from Sky Harbor Intl to Islip

Discover the top 2 airlines that operate flights from Sky Harbor Intl to Islip. 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$157Average$207FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$350Average$473FlexibilityNo cancel feeOn-time63%

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