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$100+ 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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — PHX
May 10 — May 171
Sun 5/10
Sun 5/17
1 adult, Economy
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Cheap 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 April 10, 2026.

This CheapOair deal was found by Cheapflights users on 4/7. 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 5/266:02 pm
ISP
-
PHX
1 stop19h 43m
Frontier
Thu 5/2812:20 am
PHX
-
ISP
1 stop30h 45m
Frontier
Deal found 4/7$230
This CheapOair deal was found by Cheapflights users on 4/6. 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 5/2811:00 am
ISP
-
PHX
1 stop26h 45m
Frontier
Tue 6/212:20 am
PHX
-
ISP
1 stop30h 45m
Frontier
Deal found 4/6$235
This Trip.com deal was found by Cheapflights users on 4/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/174:07 pm
ISP
-
PHX
1 stop10h 11m
Frontier
Tue 4/2112:30 am
PHX
-
ISP
1 stop30h 03m
Frontier
Deal found 4/8$247
This CheapOair deal was found by Cheapflights users on 4/8. 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 5/2111:12 am
ISP
-
PHX
1 stop26h 33m
Frontier
Sat 5/2312:20 am
PHX
-
ISP
1 stop30h 45m
Frontier
Deal found 4/8$250
This CheapOair deal was found by Cheapflights users on 4/6. 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 4/234:07 pm
ISP
-
PHX
1 stop10h 11m
Frontier
Sat 4/2512:25 am
PHX
-
ISP
1 stop30h 03m
Frontier
Deal found 4/6$265
This CheapOair deal was found by Cheapflights users on 4/9. 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 6/1710:48 am
ISP
-
PHX
1 stop26h 39m
Frontier
Fri 6/1912:35 am
PHX
-
ISP
1 stop30h 28m
Frontier
Deal found 4/9$270
This Expedia deal was found by Cheapflights users on 4/8. 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.
Thu 4/164:07 pm
ISP
-
PHX
1 stop10h 11m
Frontier
Tue 4/2112:30 am
PHX
-
ISP
1 stop30h 03m
Frontier
Deal found 4/8$290
This Southwest deal was found by Cheapflights users on 4/6. 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 5/155:10 pm
ISP
-
PHX
1 stop9h 25m
Southwest
Tue 5/1911:55 pm
PHX
-
ISP
1 stop13h 40m
Southwest
Deal found 4/6$302
This Orbitz deal was found by Cheapflights users on 4/9. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1110:48 am
ISP
-
PHX
1 stop26h 39m
Frontier
Sat 6/1312:35 am
PHX
-
ISP
1 stop30h 28m
Frontier
Deal found 4/9$335
This Trip.com deal was found by Cheapflights users on 4/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1511:00 am
ISP
-
PHX
2 stops15h 24m
Frontier
Mon 5/1812:30 am
PHX
-
ISP
2 stops30h 35m
Frontier
Deal found 4/6$357
This Southwest deal was found by Cheapflights users on 4/6. 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 6/94:40 pm
ISP
-
PHX
2 stops9h 30m
Southwest
Sat 6/2011:05 pm
PHX
-
ISP
1 stop8h 00m
Southwest
Deal found 4/6$387

Find 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 April 10, 2026.

Round-trip from

$230
(CheapOair)

One-way from

$100
(CheapOair)

Popular in

June

Cheapest in

August

Average price

$577
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. 19% potential increase in price ($129 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 April 10, 2026.
Use the filters below to find and compare flights from Islip to Phoenix that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Fri 5/15

5:10 pm-11:35 pm

1 stop9h 25m

Phoenix Sky Harbor Intl

Tue 5/19

11:55 pm-4:35 pm

1 stop13h 40m

$302

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Tue 6/9

4:40 pm-11:10 pm

2 stops9h 30m

Phoenix Sky Harbor Intl

Sat 6/20

11:05 pm-10:05 am

1 stop8h 00m

$387

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Fri 8/14

4:05 pm-9:55 pm

2 stops8h 50m

Phoenix Sky Harbor Intl

Tue 8/18

10:50 am-9:05 pm

1 stop7h 15m

$430

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Sat 5/30

12:15 pm-6:00 pm

1 stop8h 45m

Phoenix Sky Harbor Intl

Sat 5/30

11:55 pm-11:10 am

1 stop8h 15m

$433

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 5/7

4:30 pm-11:50 pm

1 stop10h 20m

Phoenix Sky Harbor Intl

Sun 5/10

12:45 pm-11:50 pm

1 stop8h 05m

$433

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Tue 4/21

4:10 pm-9:55 pm

1 stop8h 45m

Phoenix Sky Harbor Intl

Sat 4/25

11:45 am-11:20 pm

1 stop8h 35m

$439
Quickest round-trip

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 6/11

5:50 pm-11:35 pm

1 stop8h 45m

Phoenix Sky Harbor Intl

Sun 6/14

10:25 pm-8:20 am

1 stop6h 55m

$439

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Thu 9/24

6:10 am-11:55 am

2 stops8h 45m

Phoenix Sky Harbor Intl

Tue 9/29

8:20 am-9:05 pm

2 stops9h 45m

$447
Cheapest one-way

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Mon 4/27

4:07 pm-11:18 pm

1 stop10h 11m

$100

IslipPhoenix

ISP - PHX

ISPPHX

Islip Long Island

Fri 4/17

4:07 pm-11:18 pm

1 stop10h 11m

$125

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/7

Showing 1-10 of 17 resultsSorted by cheapest first
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, October is the cheapest month in which you can book a flight from Islip, New York to Phoenix (average of $158). Flying from Islip, New York to Phoenix in June is currently the most expensive (average of $257). 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.

How much does it cost to fly round-trip from Islip, New York to Phoenix?

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 April 10, 2026.
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
4,335 reviews

Food

7.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,335 reviews
Southwest
8.0
Very good
4,335 reviews

Food

7.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 9h 25m. 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 37% 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, October is the cheapest month in which you can book a flight from Islip, New York to Phoenix (average of $158). Flying from Islip, New York to Phoenix in June is currently the most expensive (average of $257). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 April 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$332Average$474FlexibilityNo cancel feeOn-time63%

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