$228+ Cheap flights from Sky Harbor Intl (PHX) to Islip, NY (ISP)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ISP
Oct 8 — Oct 151
Round-trip
1 adult, Economy
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Find cheap flights from Sky Harbor Intl to Islip with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Sky Harbor Intl to Islip
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Cheapest flights from Sky Harbor Intl to IslipExplore the most affordable flight options available from Sky Harbor Intl to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
Explore the most affordable flight options available from Sky Harbor Intl to Islip. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
This Trip.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:12 pm -
1 stop16h 18m
Mon 10/196:55 pm -
1 stop28h 47m
Deal found 9/5![Frontier logo]()
$337
This Southwest deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:55 pm -
1 stop8h 25m
Wed 10/214:20 pm -
1 stop9h 20m
Deal found 9/3![Southwest logo]()
$353
This Southwest deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/512:30 am -
1 stop10h 10m
Tue 11/106:05 am -
2 stops11h 05m
Deal found 9/6![Southwest logo]()
$430
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2811:10 pm -
1 stop8h 05m
Thu 10/85:40 pm -
1 stop9h 30m
Deal found 9/7![Southwest logo]()
$433
This Southwest deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1312:05 am -
2 stops9h 05m
Mon 10/195:40 pm -
2 stops8h 50m
Deal found 9/5![Southwest logo]()
$435
This Southwest deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/51:35 pm -
1 stop7h 55m
Mon 11/95:35 am -
1 stop12h 35m
Deal found 9/6![Southwest logo]()
$438
This Southwest deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/612:05 am -
2 stops9h 05m
Wed 10/214:20 pm -
1 stop9h 20m
Deal found 9/5![Southwest logo]()
$442
This Kiwi.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:37 am -
2 stops24h 43m
Sun 10/116:25 pm -
1 stop29h 17m
Deal found 9/3![Multiple Airlines logo]()
$443
This Southwest deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:00 am -
1 stop9h 00m
Sun 11/15:35 am -
1 stop12h 35m
Deal found 9/6![Southwest logo]()
$460
Best flights from Sky Harbor Intl to IslipDiscover carefully curated flight deals from Sky Harbor Intl to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
Discover carefully curated flight deals from Sky Harbor Intl to Islip that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
This Southwest deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:55 pm -
1 stop8h 25m
Wed 10/214:20 pm -
1 stop9h 20m
Deal found 9/3![Southwest logo]()
$353
This Southwest deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1710:55 pm -
1 stop8h 25m
Sat 10/2412:20 pm -
2 stops9h 20m
Deal found 9/3![Southwest logo]()
$358
This Southwest deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/512:30 am -
1 stop10h 10m
Tue 11/106:05 am -
2 stops11h 05m
Deal found 9/6![Southwest logo]()
$430
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/151:05 pm -
1 stop7h 35m
Thu 10/295:40 pm -
1 stop9h 30m
Deal found 9/7![Southwest logo]()
$433
This Southwest deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/612:05 am -
2 stops9h 05m
Wed 10/214:20 pm -
1 stop9h 20m
Deal found 9/5![Southwest logo]()
$442
This Southwest deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:00 am -
1 stop9h 00m
Sun 11/15:35 am -
1 stop12h 35m
Deal found 9/6![Southwest logo]()
$460
This Southwest deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/510:55 pm -
2 stops13h 35m
Sun 10/115:40 am -
2 stops9h 15m
Deal found 9/3![Southwest logo]()
$510
Last-minute flights from Sky Harbor Intl to IslipDiscover last-minute flight deals from Sky Harbor Intl to Islip. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute flight deals from Sky Harbor Intl to Islip. Data last updated September 8, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2811:10 pm -
1 stop8h 05m
Thu 10/85:40 pm -
1 stop9h 30m
Deal found 9/7![Southwest logo]()
$433
This Kiwi.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:37 am -
2 stops24h 43m
Sun 10/116:25 pm -
1 stop29h 17m
Deal found 9/3![Multiple Airlines logo]()
$443
This Southwest deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/612:05 am -
2 stops9h 05m
Wed 10/214:20 pm -
1 stop9h 20m
Deal found 9/5![Southwest logo]()
$442
This Trip.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:12 pm -
1 stop16h 18m
Mon 10/196:55 pm -
1 stop28h 47m
Deal found 9/5![Frontier logo]()
$337
This Southwest deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:55 pm -
1 stop8h 25m
Wed 10/214:20 pm -
1 stop9h 20m
Deal found 9/3![Southwest logo]()
$353
This Southwest deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:15 am -
2 stops8h 45m
Mon 10/195:40 pm -
1 stop9h 30m
Deal found 9/5![Southwest logo]()
$430
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:00 am -
1 stop9h 00m
Thu 10/295:40 pm -
2 stops8h 55m
Deal found 9/7![Southwest logo]()
$438
This Southwest deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:00 am -
1 stop6h 30m
Sun 11/15:35 am -
2 stops9h 25m
Deal found 9/6![Southwest logo]()
$460
One-way flights from Sky Harbor Intl to IslipSearch for one-way flight options from Sky Harbor Intl to Islip. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
Search for one-way flight options from Sky Harbor Intl to Islip. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
This Southwest deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1210:55 pm -
2 stops13h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Southwest logo]()
$228
This Frontier deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2411:14 pm -
1 stop14h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:24 pm -
2 stops18h 34m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/125:01 am -
3 stops51h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$282
This Kiwi.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2512:04 pm -
3 stops20h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$288
This Kiwi.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:56 pm -
3 stops37h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$304
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/48:56 pm -
2 stops17h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$336
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:51 pm -
2 stops17h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$340
This Southwest deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2011:10 pm -
1 stop7h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Southwest logo]()
$344
Find flight deals from Sky Harbor Intl to Islip
Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) to Islip (ISP). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $337 (Trip.com) |
One-way from | $228 (Southwest) |
Popular in | June |
Cheapest in | March |
Average price | $446 |
Cheapflights Fare Finder
Customize your flight search to find flights from Sky Harbor Intl to Islip that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 8, 2026.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Islip that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhoenixIslip
PHX Phoenix Sky Harbor Intl - ISP Islip Long Island
PHXISP
Phoenix Sky Harbor Intl
Mon 10/12
10:55 pm-3:30 pm
2 stops13h 35m
Islip Long Island
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$228
PhoenixIslip
PHX Phoenix Sky Harbor Intl - ISP Islip Long Island
PHXISP
Phoenix Sky Harbor Intl
Fri 9/25
7:24 pm-4:58 pm
2 stops18h 34m
Islip Long Island
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$279
PhoenixIslip
PHX Phoenix Sky Harbor Intl - ISP Islip Long Island
PHXISP
Phoenix Sky Harbor Intl
Fri 9/25
11:10 pm-12:05 pm
1 stop9h 55m
Islip Long Island
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$304
PhoenixIslip
PHX Phoenix Sky Harbor Intl - ISP Islip Long Island
PHXISP
Phoenix Sky Harbor Intl
Wed 10/14
8:51 pm-5:30 pm
2 stops17h 39m
Islip Long Island
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$340
Quickest round-trip
PhoenixIslip
PHX Phoenix Sky Harbor Intl - ISP Islip Long Island
PHXISP
Phoenix Sky Harbor Intl
Sun 9/20
11:10 pm-9:40 am
1 stop7h 30m
Islip Long Island
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$344
PhoenixIslip
PHX Phoenix Sky Harbor Intl - ISP Islip Long Island
PHXISP
Phoenix Sky Harbor Intl
Wed 10/14
10:55 pm-10:20 am
1 stop8h 25m
Islip Long Island
Wed 10/21
4:20 pm-10:40 pm
1 stop9h 20m
$353
PhoenixIslip
PHX Phoenix Sky Harbor Intl - ISP Islip Long Island
PHXISP
Phoenix Sky Harbor Intl
Sat 10/17
10:55 pm-10:20 am
1 stop8h 25m
Islip Long Island
Sat 10/24
12:20 pm-6:40 pm
2 stops9h 20m
$358
PhoenixIslip
PHX Phoenix Sky Harbor Intl - ISP Islip Long Island
PHXISP
Phoenix Sky Harbor Intl
Sun 9/27
8:56 pm-4:58 pm
2 stops17h 02m
Islip Long Island
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$385
PhoenixIslip
PHX Phoenix Sky Harbor Intl - ISP Islip Long Island
PHXISP
Phoenix Sky Harbor Intl
Tue 11/24
8:59 pm-3:45 pm
2 stops16h 46m
Islip Long Island
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$404
PhoenixIslip
PHX Phoenix Sky Harbor Intl - ISP Islip Long Island
PHXISP
Phoenix Sky Harbor Intl
Thu 11/5
12:30 am-12:40 pm
1 stop10h 10m
Islip Long Island
Tue 11/10
6:05 am-3:10 pm
2 stops11h 05m
$430
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from Sky Harbor Intl to Islip
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sky Harbor Intl to Islip in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Phoenix Sky Harbor Intl Airport-Islip, New York flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Phoenix Sky Harbor Intl Airport-Islip, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Phoenix Sky Harbor Intl Airport-Islip, New York flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Phoenix Sky Harbor Intl Airport-Islip, New York flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Phoenix Sky Harbor Intl Airport-Islip, New York flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Sky Harbor Intl to Islip
Have a flexible travel schedule? Discover the best time to fly to Islip from Sky Harbor Intl with our price prediction graph.
PHX-ISP
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Reviews of airlines servicing Islip
Get insights into the airlines that provide service to Islip. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Islip. Reviews last updated September 8, 2026.
Read through reviews of airlines operating flights from Phoenix Sky Harbor Intl Airport to Islip, such as Southwest. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Sky Harbor Intl to Islip. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Book flights to Islip if you plan to visit one of these locationsRiverhead
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Other flights to Islip
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Sky Harbor Intl and Islip flights
Browse other Sky Harbor Intl and Islip flight options. Last updated on September 8, 2026.
Other flights from Sky Harbor Intl
Browse through other flights departing from Sky Harbor Intl. Flights are based on user searches made on Cheapflights and were last updated on September 8, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Sky Harbor Intl to Islip
Discover the top airline that operate flights from Sky Harbor Intl to Islip. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$347 | Average$477 | FlexibilityNo cancel fee | On-time63% |