HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Islip

$109+ Cheap flights from Phoenix to Islip (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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ISP
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Phoenix to Islip with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 septiembre 17, 2025.

Round-trip from

$218
(CheapOair)

One-way from

$109
(Cheapflightsfares)

Popular in

July

Cheapest in

December

Average price

$428
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. 14% potential increase in price ($64 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

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 septiembre 17, 2025.

This CheapOair deal was found by Cheapflights users on 9/15. 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.
mar. 10/1410:59 pmPHX - ISP
1 stop8h 58mFrontier
mar. 10/219:37 pmISP - PHX
1 stop18h 40mFrontier
Deal found 9/15$218
This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/2110:59 pmPHX - ISP
1 stop8h 58mFrontier
sáb. 10/254:58 pmISP - PHX
1 stop23h 19mFrontier
Deal found 9/16$220
This Frontier deal was found by Cheapflights users on 9/16. 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.
jue. 10/1610:59 pmPHX - ISP
1 stop8h 38mFrontier
jue. 10/239:37 pmISP - PHX
1 stop20h 42mFrontier
Deal found 9/16$223
This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/710:59 pmPHX - ISP
1 stop8h 58mFrontier
lun. 10/204:58 pmISP - PHX
1 stop23h 19mFrontier
Deal found 9/16$241
This CheapOair deal was found by Cheapflights users on 9/15. 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.
lun. 10/1310:55 pmPHX - ISP
1 stop18h 47mFrontier
lun. 10/204:58 pmISP - PHX
1 stop23h 19mFrontier
Deal found 9/15$242
This CheapOair deal was found by Cheapflights users on 9/15. 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.
vie. 10/1011:24 pmPHX - ISP
1 stop8h 13mFrontier
mar. 10/149:37 pmISP - PHX
1 stop18h 40mFrontier
Deal found 9/15$243
This CheapOair deal was found by Cheapflights users on 9/14. 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.
dom. 10/1210:59 pmPHX - ISP
1 stop8h 38mFrontier
mié. 10/224:58 pmISP - PHX
1 stop23h 19mFrontier
Deal found 9/14$244
This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/810:59 pmPHX - ISP
1 stop18h 43mFrontier
lun. 10/204:58 pmISP - PHX
1 stop23h 19mFrontier
Deal found 9/16$252
This CheapOair deal was found by Cheapflights users on 9/15. 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.
mié. 10/1510:59 pmPHX - ISP
1 stop18h 43mFrontier
mié. 10/224:58 pmISP - PHX
1 stop23h 19mFrontier
Deal found 9/15$254
This Priceline deal was found by Cheapflights users on 9/16. 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.
lun. 11/311:07 pmPHX - ISP
1 stop11h 55mJetBlue
mar. 11/181:57 pmISP - PHX
1 stop10h 52mJetBlue
Deal found 9/16$262

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 septiembre 17, 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

mar. 10/14

10:59 pm-10:57 am

1 stop8h 58m

Islip Long Island

mar. 10/21

9:37 pm-1:17 pm

1 stop18h 40m

$218

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

mar. 10/21

10:59 pm-10:57 am

1 stop8h 58m

Islip Long Island

sáb. 10/25

4:58 pm-1:17 pm

1 stop23h 19m

$220

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

jue. 10/16

10:59 pm-10:37 am

1 stop8h 38m

Islip Long Island

jue. 10/23

9:37 pm-3:19 pm

1 stop20h 42m

$223

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

mié. 12/10

11:30 pm-11:05 am

1 stop9h 35m

Islip Long Island

lun. 12/15

11:50 am-9:59 pm

1 stop12h 09m

$237

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

lun. 12/8

11:30 pm-11:05 am

1 stop9h 35m

Islip Long Island

vie. 12/12

11:50 am-9:59 pm

1 stop12h 09m

$237

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

jue. 12/11

11:30 pm-11:05 am

1 stop9h 35m

Islip Long Island

lun. 12/15

11:50 am-9:59 pm

1 stop12h 09m

$237

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

mié. 10/22

10:59 pm-8:42 pm

1 stop18h 43m

Islip Long Island

dom. 10/26

9:47 pm-1:17 pm

1 stop18h 30m

$241

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

mar. 10/7

10:59 pm-10:57 am

1 stop8h 58m

Islip Long Island

lun. 10/20

4:58 pm-1:17 pm

1 stop23h 19m

$241

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

vie. 10/10

11:24 pm-10:37 am

1 stop8h 13m

Islip Long Island

mar. 10/14

9:37 pm-1:17 pm

1 stop18h 40m

$243

PhoenixIslip

PHX - ISP

PHXISP

Phoenix Sky Harbor Intl

dom. 10/12

10:59 pm-10:37 am

1 stop8h 38m

Islip Long Island

mié. 10/22

4:58 pm-1:17 pm

1 stop23h 19m

$244

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 14 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?

Currently, January is the cheapest month in which you can book a flight from Phoenix to Islip (average of $108). Flying from Phoenix to Islip in November is currently the most expensive (average of $213). 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 septiembre 17, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 62% on flights from Phoenix to Islip by exploring options for tickets in the afternoon.

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 septiembre 17, 2025.
Read reviews from past customers who have flown Southwest and Frontier 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
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

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
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

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
Frontier
5.8
Fair
3,173 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

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 2 airlines. Islip Long Island is conveniently located just 7.2 mi from Islip’s city center.

  • How long is the flight from Phoenix to Islip?

    Departing from Phoenix to Islip will take you 8h 58m. 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 are the cheapest airlines flying from Phoenix to Islip round-trip?

    Frontier, at $157, was found to be the cheapest airline from Phoenix to Islip. An alternate airline flying to your destination would be Southwest. You may be able to fly from Phoenix to Islip for 60% less than the average price by searching for these airlines.

  • 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?

    Currently, January is the cheapest month in which you can book a flight from Phoenix to Islip (average of $108). Flying from Phoenix to Islip in November is currently the most expensive (average of $213). 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

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.

Alternative routes for Phoenix to Islip

See prices for flight routes from nearby airports that may be better suited for you.
Sky Harbor Intl to John F Kennedy Intl flights
Sky Harbor Intl to Newark flights
Las Vegas to John F Kennedy Intl flights
Las Vegas to Newark flights
Sky Harbor Intl to LaGuardia flights
Las Vegas to LaGuardia flights
Tucson to John F Kennedy Intl flights
Tucson to Newark flights
Tucson to LaGuardia flights
Sky Harbor Intl to Buffalo flights
Sky Harbor Intl to Albany flights
Las Vegas to Buffalo flights
Sky Harbor Intl to Syracuse flights
Las Vegas to Islip flights
Las Vegas to Albany flights
Sky Harbor Intl to White Plains flights
Las Vegas to Rochester flights
Las Vegas to Stewart flights
Sky Harbor Intl to Rochester flights
Las Vegas to Syracuse flights
Sky Harbor Intl to Islip flights
Tucson to White Plains flights
Tucson to Syracuse flights
Tucson to Albany flights
Las Vegas to White Plains flights
Tucson to Buffalo flights
Sky Harbor Intl to Ithaca flights
Tucson to Rochester flights
Sky Harbor Intl to Elmira flights
Sky Harbor Intl to Watertown flights
Flagstaff to Newark flights
Sky Harbor Intl to Stewart flights
Flagstaff to LaGuardia flights
Sky Harbor Intl to Binghamton flights
Tucson to Ithaca flights
Yuma to John F Kennedy Intl flights
Yuma to Newark flights
Tucson to Binghamton flights
Las Vegas to Elmira flights
Yuma to Albany flights
Yuma to LaGuardia flights
Sky Harbor Intl to Rutland flights
Las Vegas to Rutland flights
Las Vegas to Binghamton flights
Tucson to Elmira flights
Las Vegas to Ithaca flights
Flagstaff to Syracuse flights
Sky Harbor Intl to Niagara Falls flights

Top 2 airlines flying from Phoenix to Islip

Discover the top 2 airlines 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 septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$157Average$207FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$350Average$460FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.