ISP - PHX

$91 Find Cheap Flights from Islip to Phoenix

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Islip to Phoenix departing on 11/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Phoenix Sky Harbor Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Phoenix, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Islip to Phoenix, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Islip to Phoenix (ISP-PHX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Islip to Phoenix that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Islip to Phoenix

Sat, Dec 20 - Wed, Dec 31
Frontier Logo
6:40 pm - 11:51 pmISP-PHX
31h 11m1 stop
Frontier Logo
12:59 am - 11:25 amPHX-ISP
8h 26m1 stop
$281Frontier
Find Deal
Thu, Nov 20 - Thu, Nov 27
Frontier Logo
10:02 am - 11:11 pmISP-PHX
15h 09m1 stop
Frontier Logo
10:55 pm - 10:37 amPHX-ISP
9h 42m1 stop
$289Frontier
Find Deal
Tue, Dec 23 - Wed, Dec 31
Multiple Airlines Logo
6:25 am - 12:35 amISP-PHX
44h 10m2 stops
Multiple Airlines Logo
12:59 am - 11:25 amPHX-ISP
8h 26m1 stop
$310Multiple Airlines
Find Deal
Sat, Dec 20 - Tue, Dec 30
Frontier Logo
6:40 pm - 11:51 pmISP-PHX
31h 11m1 stop
Frontier Logo
12:59 am - 4:37 pmPHX-ISP
13h 38m1 stop
$313Frontier
Find Deal
Thu, Feb 19 - Sat, Feb 28
Frontier Logo
10:42 am - 10:50 pmISP-PHX
14h 08m1 stop
Frontier Logo
11:59 pm - 9:47 amPHX-ISP
7h 48m1 stop
$322Frontier
Find Deal
Mon, Nov 24 - Thu, Nov 27
Frontier Logo
9:02 am - 11:11 pmISP-PHX
16h 09m1 stop
Frontier Logo
10:55 pm - 10:37 amPHX-ISP
9h 42m1 stop
$324Frontier
Find Deal
Tue, Mar 3 - Thu, Mar 5
JetBlue Logo
1:15 pm - 10:45 pmISP-PHX
11h 30m1 stop
JetBlue Logo
11:05 pm - 11:25 amPHX-ISP
10h 20m1 stop
$356JetBlue
Find Deal
Mon, Dec 15 - Sat, Dec 20
Southwest Logo
3:55 pm - 10:30 pmISP-PHX
8h 35m1 stop
Southwest Logo
12:30 pm - 11:55 pmPHX-ISP
9h 25m2 stops
$430Southwest
Find Deal
Thu, Nov 13 - Mon, Nov 17
JetBlue Logo
1:45 pm - 10:30 pmISP-PHX
10h 45m1 stop
JetBlue Logo
11:07 pm - 12:18 pmPHX-ISP
11h 11m1 stop
$433JetBlue
Find Deal
Mon, Dec 15 - Sat, Dec 20
Southwest Logo
3:55 pm - 10:40 pmISP-PHX
8h 45m2 stops
Southwest Logo
12:30 pm - 11:55 pmPHX-ISP
9h 25m2 stops
$435Southwest
Find Deal

Everything you should know

Top airlines
Frontier
Cheapest • from $281 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
April
Cheapest • 41% price drop
November
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$281
Typical prices: $478-$590
Frontier
Sat 12/20Wed 12/31
ISP - PHX • 1 stop
Cheapest one-way
$91
Frontier
Thu 11/20
ISP - PHX • 1 stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Phoenix!
Booking Insights

KAYAK's insights & trends for Islip to Phoenix flights

Get data-powered insights and trends into flights from Islip to Phoenix to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Islip, New York to Phoenix Sky Harbor Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Islip, New York to Phoenix Sky Harbor Intl Airport departing in December.

What’s the cheapest day of the week to fly from Islip to Phoenix?

The average price of all round-trip flights from Islip to Phoenix Sky Harbor Intl Airport clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Phoenix on a Friday and more expensive on a Sunday. On your return trip to Islip, you should consider flying back on a Monday, and avoid Wednesdays for better deals.

What is the cheapest month to fly from Islip to Phoenix Sky Harbor Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Islip to Phoenix Sky Harbor Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Islip to Phoenix Sky Harbor Intl Airport is April, where tickets cost $293 (return) on average. On the other hand, the most expensive months are October and June, where the average cost of round-trip tickets is $904 and $712 respectively.

Good to know

Low seasonJuly
Cheapest flight$91
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Islip to Phoenix

When to book flights from Islip to Phoenix

Are your dates flexible? Find out the best times to travel from Islip to Phoenix based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Islip to Phoenix flights

  • What is the cheapest flight from Islip to Phoenix Sky Harbor Intl Airport?

    In the last 3 days, the lowest price for a flight from Islip to Phoenix Sky Harbor Intl Airport was $91 for a one-way ticket and $281 for a round-trip.

  • Do I need a passport to fly between Islip and Phoenix?

    A passport is not required to fly from Islip to Phoenix.

  • Which airports will I be using when flying from Islip to Phoenix?

    Islip airport is called Islip Long Island and the only airport in Phoenix is Phoenix Sky Harbor Intl.

  • Which aircraft models fly most regularly from Islip to Phoenix?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Islip to Phoenix?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Islip to Phoenix.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Islip to Phoenix?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Phoenix from Islip is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Islip to Phoenix?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Phoenix with an airline and back to Islip with another airline. Booking your flights between Islip and PHX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Islip to Phoenix?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Phoenix from Islip up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Islip to Phoenix

 
See real verified KAYAK customer reviews for airlines flying from Islip to Phoenix. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Islip to Phoenix? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4241 reviews
8.0Comfort
7.0Food
7.5Entertainment
8.1Boarding
8.6Crew
Airline reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

8.0 ExcellentGreg, Oct 2025OAK - BUR
Read more Southwest reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

Tried watching free movie and it kept freezing so I couldn’t finish.

All was good. I just had a hard time getting connected to the WiFi/internet during the flight

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Great flight. Outstanding Service. Southwest was able to put us on a direct flight to Denver when the connection could have been affected by a later arrival to Baltimore. The direct flight was less expensive that the flight with the connection in Baltimore.

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

I was re-booked onto another flight because my original flight was delayed and I would have missed my connector. I ended up in the “C” group after paying extra to be in the “A “ group on the original flight. At least if you’re going to re-book people, re-book them into the same group.

Flight was delayed due to plane not passing inspection And one of the crew had to time out and we had to wait for another one A 3 hour delay

Everything you need to know for your flight from Islip to Phoenix

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.