$228+ Cheap flights from Islip, NY (ISP) to Phoenix
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 11/23. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — PHX
Dec 12 — Dec 191
Round-trip
1 adult, Economy
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Find cheap flights from Islip to Phoenix with Cheapflights
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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
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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 Islip to Phoenix
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Best
Last-minute
One-way
Cheapest flights from Islip to PhoenixExplore the most affordable flight options available from Islip to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 12, 2026.
Explore the most affordable flight options available from Islip to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 12, 2026.
This Southwest deal was found by Cheapflights users on 11/11. 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 12/174:25 pm -
1 stop10h 25m
Mon 12/212:50 pm -
1 stop7h 00m
Deal found 11/11![Southwest logo]()
$472
This Southwest deal was found by Cheapflights users on 11/10. 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 12/812:30 pm -
1 stop11h 15m
Tue 12/156:05 am -
1 stop8h 10m
Deal found 11/10![Southwest logo]()
$477
This Southwest deal was found by Cheapflights users on 11/11. 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.
Fri 12/115:40 pm -
2 stops9h 30m
Sun 1/31:05 am -
2 stops8h 40m
Deal found 11/11![Southwest logo]()
$482
This Southwest deal was found by Cheapflights users on 11/11. 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 12/96:05 am -
1 stop8h 45m
Wed 12/165:10 am -
2 stops9h 05m
Deal found 11/11![Southwest logo]()
$513
This Southwest deal was found by Cheapflights users on 11/8. 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 12/144:05 pm -
1 stop7h 40m
Sun 12/2712:30 am -
2 stops9h 00m
Deal found 11/8![Southwest logo]()
$517
This Southwest deal was found by Cheapflights users on 11/8. 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 12/312:30 pm -
2 stops9h 40m
Mon 12/75:10 am -
2 stops9h 05m
Deal found 11/8![Southwest logo]()
$543
Best flights from Islip to PhoenixDiscover carefully curated flight deals from Islip to Phoenix that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 12, 2026.
Discover carefully curated flight deals from Islip to Phoenix that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 12, 2026.
This Southwest deal was found by Cheapflights users on 11/8. 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 1/238:45 am -
1 stop8h 05m
Sat 1/3011:10 pm -
1 stop9h 00m
Deal found 11/8![Southwest logo]()
$407
This Southwest deal was found by Cheapflights users on 11/9. 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 1/63:25 pm -
1 stop8h 30m
Wed 1/1310:40 am -
2 stops8h 55m
Deal found 11/9![Southwest logo]()
$412
This Southwest deal was found by Cheapflights users on 11/9. 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 1/73:25 pm -
1 stop8h 30m
Mon 1/1111:10 pm -
1 stop10h 40m
Deal found 11/9![Southwest logo]()
$442
This Southwest deal was found by Cheapflights users on 11/9. 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 2/103:25 pm -
1 stop8h 30m
Fri 2/1211:10 pm -
1 stop10h 35m
Deal found 11/9![Southwest logo]()
$452
This Southwest deal was found by Cheapflights users on 11/10. 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 1/213:25 pm -
1 stop8h 30m
Mon 1/2510:40 am -
1 stop8h 00m
Deal found 11/10![Southwest logo]()
$457
This Southwest deal was found by Cheapflights users on 11/11. 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 1/1112:30 pm -
1 stop8h 05m
Fri 1/158:45 am -
1 stop7h 45m
Deal found 11/11![Southwest logo]()
$472
This Southwest deal was found by Cheapflights users on 11/11. 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 12/174:25 pm -
1 stop10h 25m
Mon 12/212:50 pm -
1 stop7h 00m
Deal found 11/11![Southwest logo]()
$472
This Southwest deal was found by Cheapflights users on 11/10. 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.
Fri 1/83:25 pm -
1 stop8h 30m
Mon 1/1111:10 pm -
1 stop10h 40m
Deal found 11/10![Southwest logo]()
$477
Last-minute flights from Islip to PhoenixDiscover last-minute flight deals from Islip to Phoenix. Data last updated November 12, 2026 and is based on user searches.
Discover last-minute flight deals from Islip to Phoenix. Data last updated November 12, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 11/8. 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 12/312:30 pm -
2 stops9h 40m
Mon 12/75:10 am -
2 stops9h 05m
Deal found 11/8![Southwest logo]()
$543
This Southwest deal was found by Cheapflights users on 11/10. 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 12/812:30 pm -
1 stop11h 15m
Tue 12/156:05 am -
1 stop8h 10m
Deal found 11/10![Southwest logo]()
$477
This Southwest deal was found by Cheapflights users on 11/11. 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 12/96:05 am -
1 stop8h 45m
Wed 12/165:10 am -
2 stops9h 05m
Deal found 11/11![Southwest logo]()
$513
This Southwest deal was found by Cheapflights users on 11/11. 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.
Fri 12/115:40 pm -
2 stops9h 30m
Sun 1/31:05 am -
2 stops8h 40m
Deal found 11/11![Southwest logo]()
$482
This Southwest deal was found by Cheapflights users on 11/8. 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 12/144:05 pm -
1 stop7h 40m
Sun 12/2712:30 am -
2 stops9h 00m
Deal found 11/8![Southwest logo]()
$517
This Southwest deal was found by Cheapflights users on 11/11. 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 12/174:25 pm -
1 stop10h 25m
Mon 12/212:50 pm -
1 stop7h 00m
Deal found 11/11![Southwest logo]()
$472
One-way flights from Islip to PhoenixSearch for one-way flight options from Islip to Phoenix. Find affordable one-way fares based on user searches. Data last updated November 12, 2026.
Search for one-way flight options from Islip to Phoenix. Find affordable one-way fares based on user searches. Data last updated November 12, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 11/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/234:40 pm -
1 stop21h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Frontier logo]()
$228
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 12/49:33 pm -
3 stops24h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Breeze Airways logo]()
$242
This KAYAK deal was found by Cheapflights users on 11/8. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/122:25 pm -
1 stop11h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![JetBlue logo]()
$280
This Cheapflightsfares deal was found by Cheapflights users on 11/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/224:40 pm -
1 stop21h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Frontier logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 11/226:13 pm -
3 stops43h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Multiple Airlines logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 11/8. 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.
Thu 12/247:45 pm -
3 stops26h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/8![Multiple Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 11/9. 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.
Fri 12/44:05 pm -
1 stop7h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Southwest logo]()
$324
This Southwest deal was found by Cheapflights users on 11/9. 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 11/235:40 pm -
2 stops8h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Southwest logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 11/233:02 pm -
3 stops22h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Multiple Airlines logo]()
$355
Find flight deals from Islip to Phoenix
Discover tips and strategies to find the most affordable flight options for your journey from Islip (ISP) to Phoenix (PH1). 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 November 12, 2026.
Round-trip from | $407 (Southwest) |
|---|---|
One-way from | $228 (Cheapflightsfares) |
Popular in | October |
Cheapest in | January |
Average price | $505 |
Cheapflights Fare Finder
Customize your flight search to find flights from Islip to Phoenix 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 November 12, 2026.
Use the filters below to find and compare flights from Islip to Phoenix that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
IslipPhoenix
ISP Islip Long Island - PHX Phoenix Sky Harbor Intl
ISPPHX
Islip Long Island
Fri 12/4
9:33 pm-8:19 pm
3 stops24h 46m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$242
IslipPhoenix
ISP Islip Long Island - PHX Phoenix Sky Harbor Intl
ISPPHX
Islip Long Island
Mon 11/23
4:40 pm-11:51 am
1 stop21h 11m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$261
IslipPhoenix
ISP Islip Long Island - PHX Phoenix Sky Harbor Intl
ISPPHX
Islip Long Island
Sun 11/22
4:40 pm-11:51 am
1 stop21h 11m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$284
IslipPhoenix
ISP Islip Long Island - PHX Phoenix Sky Harbor Intl
ISPPHX
Islip Long Island
Sun 11/22
6:13 pm-11:25 am
3 stops43h 12m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$308
Quickest round-trip
IslipPhoenix
ISP Islip Long Island - PHX Phoenix Sky Harbor Intl
ISPPHX
Islip Long Island
Mon 11/23
5:40 pm-12:15 am
2 stops8h 35m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$329
IslipPhoenix
ISP Islip Long Island - PHX Phoenix Sky Harbor Intl
ISPPHX
Islip Long Island
Mon 11/23
3:02 pm-11:51 am
2 stops46h 49m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$357
IslipPhoenix
ISP Islip Long Island - PHX Phoenix Sky Harbor Intl
ISPPHX
Islip Long Island
Thu 12/24
12:30 pm-8:10 pm
2 stops9h 40m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$374
IslipPhoenix
ISP Islip Long Island - PHX Phoenix Sky Harbor Intl
ISPPHX
Islip Long Island
Sat 1/23
8:45 am-2:50 pm
1 stop8h 05m
Phoenix Sky Harbor Intl
Sat 1/30
11:10 pm-10:10 am
1 stop9h 00m
$407
IslipPhoenix
ISP Islip Long Island - PHX Phoenix Sky Harbor Intl
ISPPHX
Islip Long Island
Wed 1/6
3:25 pm-9:55 pm
1 stop8h 30m
Phoenix Sky Harbor Intl
Wed 1/13
10:40 am-9:35 pm
2 stops8h 55m
$412
IslipPhoenix
ISP Islip Long Island - PHX Phoenix Sky Harbor Intl
ISPPHX
Islip Long Island
Thu 1/7
3:25 pm-9:55 pm
1 stop8h 30m
Phoenix Sky Harbor Intl
Mon 1/11
11:10 pm-11:50 am
1 stop10h 40m
$442
Showing 1-10 of 19 resultsSorted by cheapest first
Best time to book a flight from Islip to Phoenix
Have a flexible travel schedule? Discover the best time to fly to Phoenix from Islip with our price prediction graph.
ISP-PH1
ISP-PHX
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.
Cheapflights Insights
Everything you need to know about your flight from Islip to Phoenix
ISP-PH1
ISP-PHX
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Phoenix
Get insights into the airlines that provide service to Phoenix. 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 Phoenix. Reviews last updated November 12, 2026.
Peruse reviews from past customers who have flown with Southwest from Islip to Phoenix to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentSherrie,Jan 2024
LAX - PHX
Boarding
8.1
Overall
8.0
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentSherrie,Jan 2024
LAX - PHX
Related info for your journey
Find useful and relevant information for your journey from Islip to Phoenix. 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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Complete your trip
Complete your trip to Phoenix by adding a car rental and/or hotel reservation to your travel itinerary.
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Islip and Phoenix flights
Browse other Islip and Phoenix flight options. Last updated on November 12, 2026.
Other flights from Islip
Browse through other flights departing from Islip. Flights are based on user searches made on Cheapflights and were last updated on November 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Islip to Phoenix
Discover the top airline that operate flights from Islip to Phoenix. 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 November 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$429 | Average$474 | FlexibilityNo cancel fee | On-time63% |