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$123+ 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — PHX
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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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 August 18, 2025.

Round-trip from

$245
(FlightHub)

One-way from

$123
(Frontier)

Popular in

June

Cheapest in

April

Average price

$332
From Islip Long Island to Phoenix
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One-way flight from Islip Long Island to Phoenix
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Highest demand for flights based on searches. 21% potential increase in price ($126 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($26 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 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 August 18, 2025.

This FlightHub deal was found by Cheapflights users on 8/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/55:05 pmISP - PHX
2 stops22h 35mFrontier
Fri 9/1212:37 pmPHX - ISP
2 stops19h 18mFrontier
Deal found 8/17$245
This FlightHub deal was found by Cheapflights users on 8/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/144:58 pmISP - PHX
2 stops28h 43mFrontier
Mon 11/174:41 pmPHX - ISP
2 stops23h 01mFrontier
Deal found 8/18$253
This FlightHub deal was found by Cheapflights users on 8/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2511:40 amISP - PHX
2 stops31h 31mFrontier
Mon 9/296:00 amPHX - ISP
2 stops25h 40mFrontier
Deal found 8/17$261
This FlightHub deal was found by Cheapflights users on 8/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/155:05 pmISP - PHX
2 stops23h 00mFrontier
Mon 9/226:00 amPHX - ISP
2 stops25h 40mFrontier
Deal found 8/17$268
This Frontier deal was found by Cheapflights users on 8/17. 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.
Fri 10/179:49 amISP - PHX
2 stops17h 05mFrontier
Sat 10/254:14 pmPHX - ISP
2 stops13h 45mFrontier
Deal found 8/17$277
This Frontier deal was found by Cheapflights users on 8/16. 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 9/135:05 pmISP - PHX
2 stops17h 27mFrontier
Sat 9/202:05 pmPHX - ISP
2 stops17h 35mFrontier
Deal found 8/16$289
This Priceline deal was found by Cheapflights users on 8/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/141:57 pmISP - PHX
1 stop10h 52mJetBlue
Mon 11/1711:07 pmPHX - ISP
1 stop11h 55mJetBlue
Deal found 8/16$297
This Southwest deal was found by Cheapflights users on 8/17. 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.
Fri 10/175:35 pmISP - PHX
1 stop9h 10mSouthwest
Sat 10/256:20 amPHX - ISP
1 stop6h 55mSouthwest
Deal found 8/17$381
This Southwest deal was found by Cheapflights users on 8/16. 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 9/153:05 pmISP - PHX
1 stop7h 15mSouthwest
Mon 9/221:40 pmPHX - ISP
1 stop6h 15mSouthwest
Deal found 8/16$391

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 August 18, 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

Fri 9/5

5:05 pm-12:40 pm

2 stops22h 35m

Phoenix Sky Harbor Intl

Fri 9/12

12:37 pm-10:55 am

2 stops19h 18m

$245

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Fri 11/14

4:58 pm-7:41 pm

2 stops28h 43m

Phoenix Sky Harbor Intl

Mon 11/17

4:41 pm-5:42 pm

2 stops23h 01m

$253

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 9/25

11:40 am-4:11 pm

2 stops31h 31m

Phoenix Sky Harbor Intl

Mon 9/29

6:00 am-10:40 am

2 stops25h 40m

$261

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Mon 9/15

5:05 pm-1:05 pm

2 stops23h 00m

Phoenix Sky Harbor Intl

Mon 9/22

6:00 am-10:40 am

2 stops25h 40m

$268

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Fri 10/17

9:49 am-11:54 pm

2 stops17h 05m

Phoenix Sky Harbor Intl

Sat 10/25

4:14 pm-8:59 am

2 stops13h 45m

$277

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Sat 9/13

5:05 pm-7:32 am

2 stops17h 27m

Phoenix Sky Harbor Intl

Sat 9/20

2:05 pm-10:40 am

2 stops17h 35m

$289

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Fri 11/14

1:57 pm-10:49 pm

1 stop10h 52m

Phoenix Sky Harbor Intl

Mon 11/17

11:07 pm-1:02 pm

1 stop11h 55m

$297

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Fri 10/17

5:35 pm-11:45 pm

1 stop9h 10m

Phoenix Sky Harbor Intl

Sat 10/25

6:20 am-4:15 pm

1 stop6h 55m

$381

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Mon 11/10

9:54 am-11:50 pm

2 stops15h 56m

$123

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Fri 9/12

9:49 am-10:56 pm

2 stops16h 07m

$131

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 20 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 $258). Flying from Islip, New York to Phoenix 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 Phoenix. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

A simple way to save on the total cost of your ticket is to fly from Islip, New York to Phoenix 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 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 August 18, 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
4,246 reviews

Food

7.0

Crew

8.6

Comfort

8.0

Boarding

8.1

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
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Crew

8.6

Comfort

8.0

Boarding

8.1

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 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 22h 35m. The distance from Islip, New York to Phoenix is about 2182 mi.

  • 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 27% 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 $258). Flying from Islip, New York to Phoenix 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

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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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$332Average$466FlexibilityNo cancel feeOn-time63%

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