$110 Cheap Flights from Islip (ISP) to Phoenix (PHX)

View $110 flight on Mon, Apr 27, 2026Opens in a new window

Popular airlines from MacArthur Airport (ISP) to Phoenix Sky Harbor Intl. Airport (PHX)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Islip to Phoenix (ISP-PHX)

Prices were available within the past 7 days and start at $110 for one-way flights and $250 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Fri, May 22 - Sun, May 24
ISP
Islip
PHX
Phoenix
$250 Roundtrip, found 1 day ago
$250
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, May 22 from Islip to Phoenix, returning Sun, May 24, priced at $250 found 1 day ago
Southwest Airlines
Fri, May 29 - Tue, Jun 2
ISP
Islip
PHX
Phoenix
$275 Roundtrip, found 6 days ago
$275
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Fri, May 29 from Islip to Phoenix, returning Tue, Jun 2, priced at $275 found 6 days ago
Frontier Airlines
Thu, Jul 16 - Tue, Jul 21
ISP
Islip
PHX
Phoenix
$290 Roundtrip, found 2 days ago
$290
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Jul 16 from Islip to Phoenix, returning Tue, Jul 21, priced at $290 found 2 days ago
Frontier Airlines
Sun, Apr 19 - Wed, Apr 22
ISP
Islip
PHX
Phoenix
$295 Roundtrip, found 1 day ago
$295
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sun, Apr 19 from Islip to Phoenix, returning Wed, Apr 22, priced at $295 found 1 day ago
Frontier Airlines
Fri, Apr 17 - Sun, Apr 19
ISP
Islip
PHX
Phoenix
$301 Roundtrip, found 5 days ago
$301
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Fri, Apr 17 from Islip to Phoenix, returning Sun, Apr 19, priced at $301 found 5 days ago
Frontier Airlines
Thu, May 21 - Tue, May 26
ISP
Islip
PHX
Phoenix
$305 Roundtrip, found 4 days ago
$305
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Thu, May 21 from Islip to Phoenix, returning Tue, May 26, priced at $305 found 4 days ago
Frontier Airlines
Thu, Apr 23 - Thu, Apr 30
ISP
Islip
PHX
Phoenix
$309 Roundtrip, found 6 days ago
$309
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, Apr 23 from Islip to Phoenix, returning Thu, Apr 30, priced at $309 found 6 days ago
Frontier Airlines
Thu, Jun 4 - Mon, Jun 8
ISP
Islip
PHX
Phoenix
$315 Roundtrip, found 3 days ago
$315
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Thu, Jun 4 from Islip to Phoenix, returning Mon, Jun 8, priced at $315 found 3 days ago
Southwest Airlines
Fri, May 29 - Tue, Jun 2
ISP
Islip
PHX
Phoenix
$320 Roundtrip, found 6 days ago
$320
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Fri, May 29 from Islip to Phoenix, returning Tue, Jun 2, priced at $320 found 6 days ago
Frontier Airlines
Thu, Apr 23 - Thu, Apr 30
ISP
Islip
PHX
Phoenix
$320 Roundtrip, found 6 days ago
$320
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, Apr 23 from Islip to Phoenix, returning Thu, Apr 30, priced at $320 found 6 days ago

Alternative airports near Phoenix

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Sky Harbor Intl. PHX. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $587
PHX
Sky Harbor Intl.
CheapestClosest
Average driving time to city center10 min
Flights from $587

Frequently asked questions

How much does a flight from Islip, NY (ISP-MacArthur) to Phoenix, AZ (PHX-Sky Harbor Intl.) cost?
You can find cheap one-way flights from $110 and cheap return flights from $250 Islip, NY (ISP-MacArthur) to Phoenix, AZ (PHX-Sky Harbor Intl.) with Expedia. One-way flights typically cost between $221 and $1283, and return flights often range between $459 and $1731. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Islip, NY (ISP-MacArthur) to Phoenix, AZ (PHX-Sky Harbor Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Islip, NY (ISP-MacArthur) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The cheapest month to fly from ISP to PHX is May when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Islip, NY (ISP-MacArthur) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
Enter ISP to PHX and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Islip, NY (ISP-MacArthur) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
Frontier Airlines is one of the cheapest airlines offering connecting flights from MacArthur (ISP) to Sky Harbor Intl. (PHX), with round-trip tickets starting from around $478. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Islip, NY (ISP-MacArthur) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
To find a cheap flight from Islip, NY (ISP-MacArthur) to Phoenix, AZ (PHX-Sky Harbor Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Islip, NY (ISP-MacArthur) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Islip, NY (ISP-MacArthur) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
The earliest flight from MacArthur Airport (ISP) to Sky Harbor International Airport (PHX) typically leaves at around 5:00 AM. This seasonal service is available in April, allowing you to maximize your time in Phoenix. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Islip, NY (ISP-MacArthur) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
Flights from ISP to PHX with one stop typically take around 8 hours 30 minutes, covering approximately 2,185 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Islip, NY (ISP-MacArthur) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
Select the "Business class" and "First class" filters when looking for ISP to PHX flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Islip, NY (ISP-MacArthur) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight with Expedia?
It's easy to earn miles on a Islip, NY (ISP-MacArthur) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Phoenix from MacArthur (ISP)?
If you're planning to travel to Phoenix from MacArthur (ISP), you can fly into Sky Harbor Intl. (PHX) Some flights may connect through major hubs like Logan Intl. (BOS), Baltimore Washington Intl. Thurgood Marshall (BWI), Orlando Intl. (MCO) before reaching Phoenix. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Islip, NY (ISP-MacArthur) to Phoenix, AZ (PHX-Sky Harbor Intl.) at the last minute?
Typically, booking a last minute flight from Islip, NY (ISP-MacArthur) to Phoenix, AZ (PHX-Sky Harbor Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Islip, NY (ISP-MacArthur) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight and hotel package?
Securing a Islip, NY (ISP-MacArthur) to Phoenix, AZ (PHX-Sky Harbor Intl.) Phoenix Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Islip, NY (ISP-MacArthur) to Phoenix, AZ (PHX-Sky Harbor Intl.)?
If you booked your Islip, NY (ISP-MacArthur) to Phoenix, AZ (PHX-Sky Harbor Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
MacArthur
Destination airport
Sky Harbor Intl.
Airlines serving
Frontier Airlines, Southwest Airlines
Roundtrip price
$250
Distance
2184 mi
Average flight time
6 hours 10 mins

*Flight schedules are subject to change.

*Available to One Key members.

 

Explore a world of travel with Expedia