ISP - PHX

$116 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 6/6. 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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Everything you should know

Cheapest round-trip
$320
Typical prices: $506-$498
Frontier
Thu 5/21Wed 5/27
ISP - PHX • 1 stop
Cheapest one-way
$116
Frontier
Sat 6/6
ISP - PHX • 1 stop
Top airlines
Cheapest • from $320 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Islip and Phoenix. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $273 (round-trip)
Shortest trip • 8h 24m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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!
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

Thu, May 21 - Wed, May 27
Frontier Logo
11:12 am - 10:45 am
ISP
-
PHX
26h 33m
1 stop
Frontier Logo
12:20 am - 10:05 am
PHX
-
ISP
30h 45m
1 stop
$320Frontier
Fri, Aug 14 - Thu, Aug 20
Frontier Logo
10:48 am - 10:14 am
ISP
-
PHX
26h 26m
1 stop
Frontier Logo
12:23 am - 10:03 am
PHX
-
ISP
30h 40m
1 stop
$335Frontier
Sat, May 16 - Wed, May 20
Frontier Logo
11:00 am - 11:24 pm
ISP
-
PHX
15h 24m
2 stops
Frontier Logo
12:29 pm - 10:27 am
PHX
-
ISP
18h 58m
2 stops
$374Frontier
Wed, Jun 10 - Mon, Jun 15
Frontier Logo
9:52 pm - 10:27 am
ISP
-
PHX
15h 35m
1 stop
Frontier Logo
9:15 am - 3:56 pm
PHX
-
ISP
27h 41m
2 stops
$387Frontier
Fri, Jun 5 - Mon, Jun 15
Frontier Logo
11:00 am - 10:05 am
ISP
-
PHX
26h 05m
2 stops
Frontier Logo
11:40 pm - 3:56 pm
PHX
-
ISP
13h 16m
2 stops
$388Frontier
Sat, Jun 6 - Tue, Jun 9
Southwest Logo
2:45 pm - 9:40 pm
ISP
-
PHX
9h 55m
1 stop
Southwest Logo
10:25 pm - 8:05 am
PHX
-
ISP
6h 40m
1 stop
$391Southwest
Sat, Jun 6 - Tue, Jun 9
Southwest Logo
5:35 pm - 9:40 pm
ISP
-
PHX
7h 05m
1 stop
Southwest Logo
9:05 am - 10:35 pm
PHX
-
ISP
10h 30m
2 stops
$396Southwest
Sat, May 30 - Sat, Jun 6
Southwest Logo
4:40 pm - 9:45 pm
ISP
-
PHX
8h 05m
1 stop
Southwest Logo
1:35 pm - 11:10 pm
PHX
-
ISP
6h 35m
1 stop
$399Southwest
Thu, May 28 - Mon, Jun 1
Southwest Logo
4:30 pm - 8:40 pm
ISP
-
PHX
7h 10m
1 stop
Southwest Logo
11:55 pm - 4:35 pm
PHX
-
ISP
13h 40m
1 stop
$400Southwest
Mon, Jun 1 - Mon, Jun 8
Multiple Airlines Logo
11:00 am - 10:20 am
ISP
-
PHX
26h 20m
1 stop
Multiple Airlines Logo
12:05 pm - 6:38 pm
PHX
-
ISP
27h 33m
2 stops
$402Multiple Airlines
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 May.

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 $0 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $936 and $733 respectively.

Good to know

Low seasonAugust
Cheapest flight$116
Best time to beat the crowds with an average 38% drop in price.
Most popular time to fly and prices are also 25% 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 $116 for a one-way ticket and $320 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.
7.9
SouthwestOverall score based on 4305 reviews
8.0Comfort
8.6Crew
7.0Food
8.1Boarding
7.5Entertainment
Airline reviews

Truly terrible. Will never willingly fly southwest again. Seats are worse than before they switched to assigned seating. One flight attendant was the opposite of helpful (rude, unhelpful, dismissive, and as my stranger seatmate said unprompted: a total prick). This caused me, 15 minutes into the flight, to book an alternate return flight home on a competing airline (first class 1.2k purchase instead of my existing planned flight) just so I would not have to ever be on that aircraft, with that terrible service person, with those horrific seats ever again.

2.0 MediocreJoshua, May 2026
TPA - LAS
Read more Southwest reviews

Truly terrible. Will never willingly fly southwest again. Seats are worse than before they switched to assigned seating. One flight attendant was the opposite of helpful (rude, unhelpful, dismissive, and as my stranger seatmate said unprompted: a total prick). This caused me, 15 minutes into the flight, to book an alternate return flight home on a competing airline (first class 1.2k purchase instead of my existing planned flight) just so I would not have to ever be on that aircraft, with that terrible service person, with those horrific seats ever again.

Not having a five hour delay with little notice! The crew was very kind, though, and just as tired as we passengers were. The flight didn't depart until nearly 1 am...and no reason was ever given.

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

no service at all due to turbulence. they should've at least given us snacks, there were only 10 people on the entire flight.

First time I've had to use the disabled accommodations. And I could not have had a better experience with Southwest, i was having trouble getting from one terminal to another due to my heart failure. And the next thing I know a Southwest agent had made sure. I had a wheelchair at all my flights. Can't thank them enough.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

We waited in the airplane for over 45 min for a southwest employee to make the flight. This cause over half the plane to miss their connecting flight in Denver. When we confronted the desk upon arrival, they told us the only flight they had was the next day leaving at 8:50 pm!!! Or they offered to get us to Burbank or LA, but after that we were on our own to get back to Santa Barbara. I paid for a flight from sba to bna bna to sba. My re entry into mom mode has been 💯 rough because of southwest mistake with my flight. And now I’m leaving to Reno tomorrow for a vballl tournament and just discovered that my leg in Vegas has me and my 3 kids on a stand by flight even though I had booked these ticket last year November!! Do better southwest!

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

Information on your arrival and departure airports