PHX - ISP

$165 Find Cheap Flights from Phoenix to Islip - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Phoenix to Islip departing on 9/10. 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

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Everything you should know

Cheapest round-trip
$228
Typical prices: $347-$415
Frontier
Wed 10/14Sat 10/17
PHX - ISP • 1 stop
Cheapest one-way
$165
Frontier
Thu 9/10
PHX - ISP • 2 stops
Top airlines
Cheapest • from $228 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Phoenix and Islip. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $464 (round-trip)
Shortest trip • 7h 46m (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
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We hope you love your trip to Islip!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Phoenix to Islip (PHX-ISP)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Phoenix to Islip 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 Phoenix to Islip

Wed, Oct 14 - Sat, Oct 17
Frontier Logo
10:51 pm - 9:33 am
PHX
-
ISP
7h 42m
1 stop
Frontier Logo
4:13 pm - 11:56 pm
ISP
-
PHX
10h 43m
1 stop
$228Frontier
Fri, Aug 28 - Tue, Sep 1
Frontier Logo
6:00 am - 7:01 pm
PHX
-
ISP
34h 01m
2 stops
Frontier Logo
10:57 am - 11:00 pm
ISP
-
PHX
15h 03m
2 stops
$307Frontier
Tue, Aug 25 - Tue, Sep 1
Southwest Logo
11:10 pm - 10:15 am
PHX
-
ISP
8h 05m
1 stop
Southwest Logo
3:20 pm - 7:30 pm
ISP
-
PHX
7h 10m
1 stop
$311Southwest
Tue, Sep 15 - Tue, Sep 22
Southwest Logo
6:40 am - 5:00 pm
PHX
-
ISP
7h 20m
1 stop
Southwest Logo
6:05 am - 10:25 am
ISP
-
PHX
7h 20m
1 stop
$311Southwest
Mon, Sep 14 - Tue, Sep 22
Southwest Logo
12:35 am - 12:10 pm
PHX
-
ISP
8h 35m
2 stops
Southwest Logo
6:05 am - 10:25 am
ISP
-
PHX
7h 20m
1 stop
$316Southwest
Tue, Aug 25 - Tue, Sep 1
Southwest Logo
11:10 pm - 10:15 am
PHX
-
ISP
8h 05m
1 stop
Southwest Logo
12:55 pm - 6:55 pm
ISP
-
PHX
9h 00m
2 stops
$316Southwest
Mon, Sep 14 - Tue, Sep 22
Southwest Logo
12:35 am - 12:10 pm
PHX
-
ISP
8h 35m
2 stops
Southwest Logo
12:55 pm - 7:25 pm
ISP
-
PHX
9h 30m
2 stops
$339Southwest
Thu, Dec 10 - Mon, Dec 14
Southwest Logo
6:05 am - 4:15 pm
PHX
-
ISP
8h 10m
1 stop
Southwest Logo
6:05 am - 12:50 pm
ISP
-
PHX
8h 45m
1 stop
$347Southwest
Mon, Sep 14 - Mon, Sep 21
Southwest Logo
11:10 pm - 10:15 am
PHX
-
ISP
8h 05m
1 stop
Southwest Logo
4:05 pm - 10:25 pm
ISP
-
PHX
9h 20m
1 stop
$347Southwest
Thu, Dec 10 - Mon, Dec 14
Southwest Logo
5:10 am - 4:15 pm
PHX
-
ISP
9h 05m
2 stops
Southwest Logo
6:05 am - 12:50 pm
ISP
-
PHX
8h 45m
1 stop
$352Southwest
Booking Insights

KAYAK's insights & trends for Phoenix to Islip flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Phoenix Sky Harbor Intl Airport to Islip, 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 Phoenix Sky Harbor Intl Airport to Islip is February, where tickets cost $0 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $597 and $553 respectively.

Good to know

Low season

March

Cheapest flight

$165
Best time to beat the crowds with an average 30% drop in price.
Most popular time to fly with an average 35% increase in price.
Flight from Phoenix to Islip

When to book flights from Phoenix to Islip

Are your dates flexible? Find out the best times to travel from Phoenix to Islip 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 Phoenix to Islip flights

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

    In the last 5 days, the lowest price for a flight from Phoenix Sky Harbor Intl Airport to Islip was $165 for a one-way ticket and $228 for a round-trip.

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

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

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

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

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

    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 Phoenix to Islip.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Islip from Phoenix 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 Phoenix to Islip?

    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 Islip with an airline and back to Phoenix with another airline. Booking your flights between Phoenix and ISP 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 Phoenix to Islip?

    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 Islip from Phoenix 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 Phoenix to Islip

 
See real verified KAYAK customer reviews for airlines flying from Phoenix to Islip. 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 Phoenix to Islip? 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 4229 reviews
8.6Crew
8.0Comfort
7.0Food
7.5Entertainment
8.1Boarding
Airline reviews

For the first time in a long time, the Wi-Fi actually worked the entire flight! The flight crew was amazing as usual.

10.0 ExcellentCindy, Apr 2026
PHX - MDW
Read more Southwest reviews

For the first time in a long time, the Wi-Fi actually worked the entire flight! The flight crew was amazing as usual.

Great flight. I didn't get a drink because I was asleep whole on the flight.

It was good from LAX to Phoenix, But the connection in Phoenix to Tulsa was not that great. The staff on both flights were great. The choice of free entertainment was ok nothing to brag about. The 45 min delay because of some electrical issue wasn't great from Phoenix to Tulsa. We sat there with hardly any air, The seat I had was between windows so the side of the plane pushed in on you. My being a bigger man it then made the seating area uncomfortable. The seats on the plane had no power to connect to recharge your phone or anything. I would recommend that they should look into a slot or clamp to hold your phone to enjoy while watching the entertainment choices hands-free. Also make it possible to raise the inner seat by the window be able to raise the arm rest up to make more room for larger people to set more comfortably. I would also say other then that stop price gouging the airfare or nickel and diming everything. Not fair for people having to fly for emergencies and be paying for higher prices due to the season or holidays. Your making your money either way and the cost of flying is still going to be the same regardless if there's 100 people or 200 people.

Mediocre. Boarding is now unpleasant. The employees, once friendly and nice, are now regularly speaking sternly to passengers, badgering them to do things right so they can take off on time and gate check bags because they don't have enough overhead bin space. The pretzel snack was crushed flat and broken into even smaller pieces, which happens frequently lately. Drink service was suspended before they reached my row.

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled.

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

mandatory demand customer to check their carry on because not enough people check bags.

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

Delayed 4 hours due to mechanical issues. No mention of compensation for being over 3 hours late

At time of arrival to the airport, there were plenty of kiosks open/running for checking and baggage tags. While waiting to drop my bag, a team member was checking everyone's IDs against their baggage tag to verify a match/compliance to save additional time when dropping it at the front of the line. This was actually a really big time saver and greatly appreciated! Once boarding was starting, the team member had a clear and audible voice with their announcements, with direct (yet friendly) instructions for the boarding process. Once actually boarding, the flight crew gave genuine greetings while walking on board and were very nice and attentive during the flight. The take-off and landing were one of the smoothest I've had in MANY of years. Kudos to the pilots! I literally cannot remember the last time a had such a smooth landing :D

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

Information on your arrival and departure airports