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Islip

$142+ Cheap flights from Phoenix 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 12/30. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ISP
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Find flight deals from Phoenix to Islip

Cheapest flights from Phoenix to Islip
Explore the most affordable flight options available from Phoenix to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 26, 2025.

This CheapOair deal was found by Cheapflights users on 11/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1812:59 amPHX - ISP
1 stop9h 43mFrontier
Mon 12/228:35 pmISP - PHX
1 stop29h 14mFrontier
Deal found 11/25$258
This Frontier deal was found by Cheapflights users on 11/26. 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.
Sun 12/2812:59 amPHX - ISP
1 stop10h 10mFrontier
Tue 12/3012:20 pmISP - PHX
1 stop13h 29mFrontier
Deal found 11/26$274
This Frontier deal was found by Cheapflights users on 11/26. 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.
Sun 12/2812:59 amPHX - ISP
1 stop10h 10mFrontier
Thu 1/112:20 pmISP - PHX
1 stop13h 29mFrontier
Deal found 11/26$278
This Frontier deal was found by Cheapflights users on 11/26. 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 12/2412:59 amPHX - ISP
1 stop8h 26mFrontier
Tue 12/3012:20 pmISP - PHX
1 stop13h 29mFrontier
Deal found 11/26$304
This Frontier deal was found by Cheapflights users on 11/25. 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 12/1812:59 amPHX - ISP
1 stop9h 43mFrontier
Tue 12/3012:20 pmISP - PHX
1 stop13h 29mFrontier
Deal found 11/25$308
This Frontier deal was found by Cheapflights users on 11/25. 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 12/1812:59 amPHX - ISP
1 stop9h 43mFrontier
Thu 1/112:20 pmISP - PHX
1 stop13h 29mFrontier
Deal found 11/25$337
This Kiwi.com deal was found by Cheapflights users on 11/26. 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.
Wed 12/2412:59 amPHX - ISP
1 stop8h 26mFrontier
Wed 12/316:00 amISP - PHX
2 stops32h 47mFrontier
Deal found 11/26$350
This Frontier deal was found by Cheapflights users on 11/25. 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 12/2512:59 amPHX - ISP
1 stop10h 10mFrontier
Thu 1/112:20 pmISP - PHX
1 stop13h 29mFrontier
Deal found 11/25$357
This CheapOair deal was found by Cheapflights users on 11/24. 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 12/2512:59 amPHX - ISP
1 stop10h 10mFrontier
Tue 12/3012:20 pmISP - PHX
1 stop13h 29mFrontier
Deal found 11/24$363
This Frontier deal was found by Cheapflights users on 11/26. 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.
Sat 12/2712:59 amPHX - ISP
1 stop10h 10mFrontier
Tue 12/3012:20 pmISP - PHX
1 stop13h 29mFrontier
Deal found 11/26$383
This CheapOair deal was found by Cheapflights users on 11/24. 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 11/2710:55 pmPHX - ISP
1 stop9h 42mFrontier
Mon 12/19:02 amISP - PHX
1 stop16h 09mFrontier
Deal found 11/24$387

Cheap flight deals from Phoenix to Islip

Discover tips and strategies to find the most affordable flight options for your journey from Phoenix (PH1) 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 November 26, 2025.

Round-trip from

$233
(CheapOair)

One-way from

$142
(CheapOair)

Popular in

December

Cheapest in

March

Average price

$434
From Phoenix to Islip Long Island
Search Deals
One-way flight from Phoenix to Islip Long Island
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($31 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Phoenix 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 November 26, 2025.
Use the filters below to find and compare flights from Phoenix to Islip that are best for you.

Fly from

Phoenix

Fly to

Islip

Route

Depart

Return

Price

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Thu 12/18

12:59 am-12:42 pm

1 stop9h 43m

Islip Long Island

Mon 12/22

8:35 pm-11:49 pm

1 stop29h 14m

$258

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Sun 12/28

12:59 am-1:09 pm

1 stop10h 10m

Islip Long Island

Thu 1/1

12:20 pm-11:49 pm

1 stop13h 29m

$278

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Wed 12/24

12:59 am-11:25 am

1 stop8h 26m

Islip Long Island

Tue 12/30

12:20 pm-11:49 pm

1 stop13h 29m

$304

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Thu 12/18

12:59 am-12:42 pm

1 stop9h 43m

Islip Long Island

Tue 12/30

12:20 pm-11:49 pm

1 stop13h 29m

$308

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Wed 12/24

12:59 am-11:25 am

1 stop8h 26m

Islip Long Island

Thu 1/1

12:20 pm-11:49 pm

1 stop13h 29m

$308

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Thu 12/25

12:59 am-1:09 pm

1 stop10h 10m

Islip Long Island

Thu 1/1

12:20 pm-11:49 pm

1 stop13h 29m

$357

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Thu 12/25

12:59 am-1:09 pm

1 stop10h 10m

Islip Long Island

Tue 12/30

12:20 pm-11:49 pm

1 stop13h 29m

$363

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Sat 12/27

12:59 am-1:09 pm

1 stop10h 10m

Islip Long Island

Tue 12/30

12:20 pm-11:49 pm

1 stop13h 29m

$383

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Wed 12/24

12:59 am-11:25 am

1 stop8h 26m

Islip Long Island

Thu 1/1

11:40 am-11:49 pm

2 stops14h 09m

$390

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Thu 12/25

12:59 am-1:09 pm

1 stop10h 10m

Islip Long Island

Mon 12/29

2:04 pm-11:49 pm

1 stop11h 45m

$412

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

Showing 1-10 of 22 results
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Best time to book a flight from Phoenix to Islip

Have a flexible travel schedule? Discover the best time to fly to Islip from Phoenix 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 to Islip

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

Currently, March is the cheapest month in which you can book a flight from Phoenix to Islip, New York (average of $109). Flying from Phoenix to Islip, New York in June is currently the most expensive (average of $199). 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 Phoenix 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 November 26, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 61% on flights from Phoenix to Islip, New York by exploring options for tickets in the evening.

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 November 26, 2025.
Read reviews from past customers who have flown Southwest from Phoenix to Islip. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,254 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

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
4,254 reviews
Southwest
8.0
Very good
4,254 reviews

Crew

8.6

Overall

8.0

Boarding

8.1

Comfort

8.0

Food

7.0

Entertainment

7.5

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 Phoenix 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?

    Most people fly into Islip Long Island (ISP) if they book a flight to Islip from Phoenix. On average, Long Island has 0 inbound flights from Phoenix per day from 1 airline. Islip Long Island is conveniently located just 7.2 mi from Islip’s city center.

  • How long is the flight from Phoenix to Islip, New York?

    A quick flight from Phoenix to Islip, New York can take about 9h 43m. Frontier provides one of the quickest options available for as low as $258. Airlines will cover a distance of 2182 mi.

  • What is the cheapest airline to fly from Phoenix to Islip, New York round-trip?

    Cheapflights users have booked flights from Phoenix to Islip, New York round-trip from $347. Southwest is priced at 18% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Phoenix to Islip that include hotel bookings?

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

  • How can I find direct flights from Phoenix to Islip?

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

  • Can I find deals for business class flights from Phoenix to Islip?

    Yes. Cheapflights offers flight deals from Phoenix 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 to Islip, New York?

    Currently, March is the cheapest month in which you can book a flight from Phoenix to Islip, New York (average of $109). Flying from Phoenix to Islip, New York in June is currently the most expensive (average of $199). 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?

Book flights to Islip if you plan to visit one of these locations
Riverhead
Southampton

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Alternative routes for Phoenix to Islip

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Phoenix to Islip

Discover the top airline that operate flights from Phoenix 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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$347Average$446FlexibilityNo cancel feeOn-time63%

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