ISP - PHX

$121 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 4/16. 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
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41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$205
Typical prices: $429-$456
Frontier
Mon 2/23Thu 2/26
ISP - PHX • 1 stop
Cheapest one-way
$121
Frontier
Thu 4/16
ISP - PHX • 1 stop
Top airlines
Frontier
Cheapest • from $205 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
March
Cheapest • 37% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Phoenix!
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

Mon, Feb 23 - Thu, Feb 26
Frontier Logo
8:23 am - 5:29 pm
ISP
-
PHX
11h 06m
1 stop
Frontier Logo
11:59 pm - 2:39 pm
PHX
-
ISP
12h 40m
1 stop
$205Frontier
Mon, Feb 23 - Thu, Feb 26
Frontier Logo
8:23 am - 5:29 pm
ISP
-
PHX
11h 06m
1 stop
Frontier Logo
11:59 pm - 2:39 pm
PHX
-
ISP
12h 40m
1 stop
$240Frontier
Mon, Feb 23 - Thu, Feb 26
Frontier Logo
8:23 am - 5:29 pm
ISP
-
PHX
11h 06m
1 stop
Frontier Logo
11:59 pm - 2:39 pm
PHX
-
ISP
12h 40m
1 stop
$262Frontier
Thu, Feb 26 - Thu, Mar 5
Frontier Logo
3:34 pm - 6:04 pm
ISP
-
PHX
28h 30m
1 stop
Frontier Logo
10:51 pm - 9:48 am
PHX
-
ISP
32h 57m
2 stops
$289Frontier
Thu, Feb 26 - Sun, Mar 1
Frontier Logo
3:34 pm - 6:04 pm
ISP
-
PHX
28h 30m
1 stop
Frontier Logo
11:59 pm - 2:39 pm
PHX
-
ISP
12h 40m
1 stop
$311Frontier
Sat, Feb 28 - Sat, Mar 7
Frontier Logo
12:01 pm - 10:12 pm
ISP
-
PHX
12h 11m
1 stop
Frontier Logo
6:24 pm - 11:33 am
PHX
-
ISP
39h 09m
2 stops
$336Frontier
Thu, Feb 26 - Thu, Mar 5
Frontier Logo
3:34 pm - 6:04 pm
ISP
-
PHX
28h 30m
1 stop
Frontier Logo
11:59 pm - 12:47 pm
PHX
-
ISP
10h 48m
1 stop
$354Frontier
Fri, Mar 6 - Sun, Mar 8
Frontier Logo
1:42 pm - 12:44 am
ISP
-
PHX
13h 02m
1 stop
Frontier Logo
12:59 am - 12:33 pm
PHX
-
ISP
8h 34m
1 stop
$358Frontier
Thu, Feb 26 - Sun, Mar 1
Frontier Logo
3:34 pm - 6:04 pm
ISP
-
PHX
28h 30m
1 stop
Frontier Logo
5:05 am - 7:38 am
PHX
-
ISP
24h 33m
2 stops
$365Frontier
Fri, Feb 20 - Tue, Feb 24
JetBlue Logo
1:28 pm - 10:49 pm
ISP
-
PHX
11h 21m
1 stop
JetBlue Logo
11:05 pm - 10:02 am
PHX
-
ISP
8h 57m
1 stop
$371JetBlue
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 February.

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 March, where tickets cost $300 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $733 and $712 respectively.

Find deals

Good to know

Low seasonJuly
Cheapest flight$121
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly and prices are also 18% 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 $121 for a one-way ticket and $205 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 4267 reviews
7.5Entertainment
8.0Comfort
8.6Crew
8.1Boarding
7.0Food
Airline reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

10.0 ExcellentAnonymous, Jan 2026
PHX - MDW
Read more Southwest reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

Everything went smoothly and we even arrived a little bit early.

Great vacation. Can't wait till next year for another one.

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

The seats were comfortable, and the boarding process was pretty smooth.

3 hour delay. Had to change plans and was still delayed.

The staff was very friendly, professional, and courteous. The overall flight was a great experience.

The crew canceled the complementary snack and drink in anticipation of turbulence that never materialized. I was counting on the drink (water) to take the the doses of medication - prescribed for my heart condition - that were due during the flight. Since no snack or meal was served on this flight, I cannot rate the food quality. Otherwise, this flight was excellent.

Departure was delayed more than 1/2 hour while we waited for luggage (only) transfer from another flight/plane. Once approved for takeoff, the flight was excellent.

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

Information on your arrival and departure airports

Islip (ISP)
Sky Harbor Intl (PHX)