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Islip

$165+ 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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ISP
Mar 20 — Mar 271
Fri 3/20
Fri 3/27
1 adult, Economy
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Cheap 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 February 18, 2026.

This CheapOair deal was found by Cheapflights users on 2/15. 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.
Tue 4/2812:30 am
PHX
-
ISP
1 stop29h 43m
Frontier
Sun 5/34:07 pm
ISP
-
PHX
1 stop10h 11m
Frontier
Deal found 2/15$242
This CheapOair deal was found by Cheapflights users on 2/18. 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 3/512:59 am
PHX
-
ISP
1 stop9h 48m
Frontier
Sun 3/85:08 pm
ISP
-
PHX
1 stop9h 51m
Frontier
Deal found 2/18$290
This Expedia deal was found by Cheapflights users on 2/15. 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.
Fri 2/2711:59 pm
PHX
-
ISP
1 stop9h 07m
Frontier
Mon 3/28:23 am
ISP
-
PHX
1 stop11h 44m
Frontier
Deal found 2/15$307
This Frontier deal was found by Cheapflights users on 2/17. 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 3/411:59 pm
PHX
-
ISP
1 stop12h 40m
Frontier
Sun 3/85:08 pm
ISP
-
PHX
1 stop9h 51m
Frontier
Deal found 2/17$321
This Frontier deal was found by Cheapflights users on 2/15. 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 2/2611:59 pm
PHX
-
ISP
1 stop12h 40m
Frontier
Mon 3/28:23 am
ISP
-
PHX
1 stop11h 44m
Frontier
Deal found 2/15$372
This Southwest deal was found by Cheapflights users on 2/18. 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 6/411:35 am
PHX
-
ISP
2 stops9h 00m
Southwest
Wed 6/104:40 pm
ISP
-
PHX
2 stops9h 30m
Southwest
Deal found 2/18$427
This Southwest deal was found by Cheapflights users on 2/17. 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 5/2812:50 pm
PHX
-
ISP
1 stop7h 40m
Southwest
Mon 6/14:30 pm
ISP
-
PHX
1 stop7h 10m
Southwest
Deal found 2/17$442
This Frontier deal was found by Cheapflights users on 2/18. 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 3/511:59 pm
PHX
-
ISP
1 stop10h 48m
Frontier
Mon 3/91:22 pm
ISP
-
PHX
1 stop13h 22m
Frontier
Deal found 2/18$444
This Southwest deal was found by Cheapflights users on 2/17. 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 7/24:25 pm
PHX
-
ISP
1 stop12h 55m
Southwest
Thu 7/1612:30 pm
ISP
-
PHX
1 stop8h 45m
Southwest
Deal found 2/17$452

Find 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 February 18, 2026.

Round-trip from

$242
(CheapOair)

One-way from

$165
(Frontier)

Popular in

December

Cheapest in

March

Average price

$287
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. 5% potential increase in price ($25 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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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 February 18, 2026.
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

Tue 4/28

12:30 am-9:13 am

1 stop29h 43m

Islip Long Island

Sun 5/3

4:07 pm-11:18 pm

1 stop10h 11m

$242

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Thu 3/5

12:59 am-12:47 pm

1 stop9h 48m

Islip Long Island

Sun 3/8

5:08 pm-11:59 pm

1 stop9h 51m

$290

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Wed 3/4

11:59 pm-2:39 pm

1 stop12h 40m

Islip Long Island

Sun 3/8

5:08 pm-11:59 pm

1 stop9h 51m

$321

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Thu 6/4

11:35 am-11:35 pm

2 stops9h 00m

Islip Long Island

Wed 6/10

4:40 pm-11:10 pm

2 stops9h 30m

$427

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Thu 5/28

12:50 pm-11:30 pm

1 stop7h 40m

Islip Long Island

Mon 6/1

4:30 pm-8:40 pm

1 stop7h 10m

$442

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Thu 3/5

11:59 pm-12:47 pm

1 stop10h 48m

Islip Long Island

Mon 3/9

1:22 pm-11:44 pm

1 stop13h 22m

$444

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Tue 3/3

11:05 pm-10:02 am

1 stop8h 57m

Islip Long Island

Sat 3/7

1:25 pm-10:47 pm

1 stop11h 22m

$448

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Thu 3/12

12:59 am-12:47 pm

1 stop8h 48m

$165

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Thu 3/5

12:59 am-12:47 pm

1 stop9h 48m

$175

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

Sun 3/1

11:59 pm-2:39 pm

1 stop12h 40m

$192

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/16

Showing 1-10 of 13 results
1
2

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, January is the cheapest month in which you can book a flight from Phoenix to Islip, New York (average of $98). Flying from Phoenix to Islip, New York in June is currently the most expensive (average of $186). 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.

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 February 18, 2026.
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
4,293 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

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
4,293 reviews
Southwest
8.0
Very good
4,293 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

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 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. Frontier provides one of the quickest options available for as low as $427. Airlines will cover a distance of 2182 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 20% 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, January is the cheapest month in which you can book a flight from Phoenix to Islip, New York (average of $98). Flying from Phoenix to Islip, New York in June is currently the most expensive (average of $186). 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
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Alternative routes for Phoenix to Islip

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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 February 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$347Average$446FlexibilityNo cancel feeOn-time63%

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