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$71+ Cheap flights from Islip, NY (ISP) to Phoenix

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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — PHX
Dec 16 — Dec 231
Tue 12/16
Tue 12/23
1 adult, Economy
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Find flight deals from Islip to Phoenix

Cheapest flights from Islip to Phoenix
Explore the most affordable flight options available from Islip to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1110:19 amISP - PHX
2 stops16h 09mFrontier
Wed 12/1712:59 amPHX - ISP
1 stop8h 26mFrontier
Deal found 11/15$203
This CheapOair deal was found by Cheapflights users on 11/15. 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.
Thu 12/1812:20 pmISP - PHX
1 stop13h 29mFrontier
Wed 12/2412:59 amPHX - ISP
1 stop8h 26mFrontier
Deal found 11/15$290
This Kiwi.com deal was found by Cheapflights users on 11/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/112:19 pmISP - PHX
1 stop24h 45mMultiple Airlines
Wed 12/1712:59 amPHX - ISP
1 stop8h 26mMultiple Airlines
Deal found 11/15$294
This Frontier deal was found by Cheapflights users on 11/14. 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 11/2010:02 amISP - PHX
1 stop15h 09mFrontier
Thu 11/2710:55 pmPHX - ISP
1 stop9h 42mFrontier
Deal found 11/14$342
This CheapOair deal was found by Cheapflights users on 11/14. 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.
Sun 12/218:35 pmISP - PHX
1 stop29h 14mFrontier
Wed 12/2412:59 amPHX - ISP
1 stop8h 26mFrontier
Deal found 11/14$362
This CheapOair deal was found by Cheapflights users on 11/14. 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.
Thu 12/1812:20 pmISP - PHX
1 stop13h 29mFrontier
Wed 12/3112:59 amPHX - ISP
1 stop8h 26mFrontier
Deal found 11/14$422
This CheapOair deal was found by Cheapflights users on 11/14. 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.
Fri 12/198:35 pmISP - PHX
1 stop29h 14mFrontier
Mon 12/2212:59 amPHX - ISP
1 stop8h 26mFrontier
Deal found 11/14$427
This Frontier deal was found by Cheapflights users on 11/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/222:04 pmISP - PHX
1 stop11h 45mFrontier
Wed 12/2412:59 amPHX - ISP
1 stop8h 26mFrontier
Deal found 11/13$456
This CheapOair deal was found by Cheapflights users on 11/14. 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.
Fri 12/191:27 pmISP - PHX
1 stop12h 22mFrontier
Tue 12/2312:59 amPHX - ISP
1 stop13h 38mFrontier
Deal found 11/14$457

Cheap flight deals from Islip to Phoenix

Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Phoenix (PH1). 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 16, 2025.

Round-trip from

$146
(CheapOair)

One-way from

$71
(CheapOair)

Popular in

December

Cheapest in

April

Average price

$456
From Islip Long Island to Phoenix
Search Deals
One-way flight from Islip Long Island to Phoenix
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($67 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Islip to Phoenix 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 16, 2025.
Use the filters below to find and compare flights from Islip to Phoenix that are best for you.

Fly from

Islip

Fly to

Phoenix

Route

Depart

Return

Price

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 12/11

10:19 am-12:28 am

2 stops16h 09m

Phoenix Sky Harbor Intl

Wed 12/17

12:59 am-11:25 am

1 stop8h 26m

$203

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Fri 2/20

7:41 pm-12:46 pm

2 stops19h 05m

Phoenix Sky Harbor Intl

Sun 2/22

11:59 pm-10:40 am

1 stop8h 41m

$276

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Mon 3/2

1:27 pm-10:49 pm

1 stop11h 22m

Phoenix Sky Harbor Intl

Wed 3/4

11:05 pm-10:02 am

1 stop8h 57m

$281

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 12/18

12:20 pm-11:49 pm

1 stop13h 29m

Phoenix Sky Harbor Intl

Wed 12/24

12:59 am-11:25 am

1 stop8h 26m

$290

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 12/11

2:19 pm-1:04 pm

1 stop24h 45m

Phoenix Sky Harbor Intl

Wed 12/17

12:59 am-11:25 am

1 stop8h 26m

$294

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Tue 3/3

1:27 pm-10:49 pm

1 stop11h 22m

Phoenix Sky Harbor Intl

Thu 3/5

11:05 pm-10:02 am

1 stop8h 57m

$314

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Sun 12/21

8:35 pm-11:49 pm

1 stop29h 14m

Phoenix Sky Harbor Intl

Wed 12/24

12:59 am-11:25 am

1 stop8h 26m

$362

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 2/19

10:42 am-10:50 pm

1 stop14h 08m

$71

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Fri 2/20

7:41 pm-10:50 pm

1 stop29h 09m

$75

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Sun 2/22

10:42 am-10:50 pm

1 stop14h 08m

$79

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/15

Showing 1-10 of 16 results
1
2

Best time to book a flight from Islip to Phoenix

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

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

Currently, January is the cheapest month in which you can book a flight from Islip, New York to Phoenix (average of $133). Flying from Islip, New York to Phoenix in June is currently the most expensive (average of $251). 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 Phoenix. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 16, 2025.

A simple way to save on the total cost of your ticket is to fly from Islip, New York to Phoenix in the evening. If you’re flexible enough to do this you can expect to save up to 51% on your trip compared to booking a flight in the afternoon.

Reviews of airlines servicing Phoenix

Get insights into the airlines that provide service to Phoenix. 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 Phoenix. Reviews last updated November 16, 2025.
Peruse reviews from past customers who have flown with Southwest from Islip to Phoenix to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,244 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

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
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

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 Islip to Phoenix. 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?

    Islip Long Island (ISP) is the airport you will fly out of if you book a flight from Islip to Phoenix. You should not have trouble finding flights to Phoenix from Long Island; the airport handles an average of 0 outbound flights to Phoenix per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Islip airport to Phoenix. It is only a 7.2 mi journey to Long Island (ISP) from Islip’s city center.

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

    Departing from Islip, New York to Phoenix will take you 11h 22m. The distance from Islip, New York to Phoenix is about 2182 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Flying on Southwest is currently your cheapest option to Phoenix, with prices starting at $332. Southwest is currently priced 30% below the average price you’ll pay for this route.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Islip, New York to Phoenix (average of $133). Flying from Islip, New York to Phoenix in June is currently the most expensive (average of $251). 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

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Alternative routes for Islip to Phoenix

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

Discover the top airline that operate flights from Islip to Phoenix. 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 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$332Average$442FlexibilityNo cancel feeOn-time63%

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