$185+ 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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
ISP — PHX
Oct 10 — Oct 171
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
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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 September 10, 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 September 10, 2026.
This Southwest deal was found by Cheapflights users on 9/9. 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 10/296:55 am -
1 stop10h 25m
Sun 11/112:30 am -
1 stop10h 10m
Deal found 9/9![Southwest logo]()
$369
This Southwest deal was found by Cheapflights users on 9/9. 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 10/165:40 pm -
1 stop9h 30m
Fri 10/2310:30 pm -
1 stop10h 25m
Deal found 9/9![Southwest logo]()
$394
This Southwest deal was found by Cheapflights users on 9/8. 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 10/85:40 pm -
1 stop9h 30m
Tue 10/1310:30 pm -
1 stop10h 40m
Deal found 9/8![Southwest logo]()
$406
This Southwest deal was found by Cheapflights users on 9/9. 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 10/74:20 pm -
1 stop8h 45m
Wed 10/148:15 am -
2 stops8h 45m
Deal found 9/9![Southwest logo]()
$408
This Southwest deal was found by Cheapflights users on 9/8. 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.
Fri 12/46:05 am -
2 stops9h 40m
Sat 12/511:00 am -
2 stops8h 45m
Deal found 9/8![Southwest logo]()
$411
This Southwest deal was found by Cheapflights users on 9/10. 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.
Sun 11/15:35 am -
2 stops9h 25m
Wed 11/412:30 am -
1 stop10h 10m
Deal found 9/10![Southwest logo]()
$428
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 10/85:40 pm -
1 stop9h 30m
Thu 10/1510:55 pm -
1 stop8h 25m
Deal found 9/7![Southwest logo]()
$433
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 September 10, 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 September 10, 2026.
This Southwest deal was found by Cheapflights users on 9/9. 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 10/295:40 pm -
1 stop9h 30m
Mon 11/25:45 am -
2 stops9h 20m
Deal found 9/9![Southwest logo]()
$374
This Southwest deal was found by Cheapflights users on 9/8. 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 10/85:40 pm -
1 stop9h 30m
Thu 10/155:20 pm -
1 stop14h 00m
Deal found 9/8![Southwest logo]()
$406
This Southwest deal was found by Cheapflights users on 9/8. 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.
Fri 12/46:05 am -
1 stop8h 45m
Sat 12/511:20 am -
2 stops8h 25m
Deal found 9/8![Southwest logo]()
$406
This Southwest deal was found by Cheapflights users on 9/10. 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.
Sun 11/15:35 am -
2 stops9h 25m
Wed 11/412:30 am -
1 stop10h 10m
Deal found 9/10![Southwest logo]()
$428
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 12/104:05 pm -
2 stops9h 30m
Mon 12/145:10 am -
2 stops9h 05m
Deal found 9/6![Southwest logo]()
$443
This Southwest deal was found by Cheapflights users on 9/10. 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.
Sat 10/173:50 pm -
2 stops8h 25m
Sun 10/2510:55 pm -
1 stop8h 25m
Deal found 9/10![Southwest logo]()
$482
This Southwest deal was found by Cheapflights users on 9/8. 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 10/55:40 pm -
2 stops8h 50m
Fri 10/91:05 pm -
1 stop7h 35m
Deal found 9/8![Southwest logo]()
$498
This Southwest deal was found by Cheapflights users on 9/10. 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 10/93:10 pm -
1 stop12h 00m
Mon 10/1210:55 pm -
2 stops13h 35m
Deal found 9/10![Southwest logo]()
$507
Last-minute flights from Islip to PhoenixDiscover last-minute flight deals from Islip to Phoenix. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Islip to Phoenix. Data last updated September 10, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 9/9. 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 10/74:20 pm -
1 stop8h 45m
Wed 10/148:15 am -
2 stops8h 45m
Deal found 9/9![Southwest logo]()
$408
This Southwest deal was found by Cheapflights users on 9/8. 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 10/85:40 pm -
1 stop9h 30m
Tue 10/1310:30 pm -
1 stop10h 40m
Deal found 9/8![Southwest logo]()
$406
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 10/85:40 pm -
1 stop9h 30m
Thu 10/1510:55 pm -
1 stop8h 25m
Deal found 9/7![Southwest logo]()
$433
This Southwest deal was found by Cheapflights users on 9/9. 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 10/165:40 pm -
1 stop9h 30m
Fri 10/2310:30 pm -
1 stop10h 25m
Deal found 9/9![Southwest logo]()
$394
This Southwest deal was found by Cheapflights users on 9/9. 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 10/296:55 am -
1 stop10h 25m
Sun 11/112:30 am -
1 stop10h 10m
Deal found 9/9![Southwest logo]()
$369
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 September 10, 2026.
Search for one-way flight options from Islip to Phoenix. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Southwest deal was found by Cheapflights users on 9/9. 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 10/195:40 pm -
1 stop9h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Southwest logo]()
$185
This Southwest deal was found by Cheapflights users on 9/8. 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 11/25:40 pm -
2 stops8h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Southwest logo]()
$190
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2910:57 am -
2 stops47h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/193:02 pm -
3 stops25h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Mon 11/23:02 pm -
3 stops35h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$207
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 10/296:55 am -
1 stop10h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Southwest logo]()
$217
This Southwest deal was found by Cheapflights users on 9/9. 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.
Sat 10/173:50 pm -
2 stops9h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Southwest logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Sat 10/1712:00 pm -
3 stops14h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$274
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/186:25 pm -
1 stop29h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/187:31 pm -
3 stops43h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$283
This Frontier deal was found by Cheapflights users on 9/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:54 pm -
2 stops23h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$288
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 September 10, 2026.
Round-trip from | $369 (Southwest) |
|---|---|
One-way from | $185 (Southwest) |
Popular in | December |
Cheapest in | January |
Average price | $397 |
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 September 10, 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
Mon 10/19
5:40 pm-12:10 am
1 stop9h 30m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$185
IslipPhoenix
ISP Islip Long Island - PHX Phoenix Sky Harbor Intl
ISPPHX
Islip Long Island
Mon 11/2
5:35 am-4:10 pm
1 stop12h 35m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$190
IslipPhoenix
ISP Islip Long Island - PHX Phoenix Sky Harbor Intl
ISPPHX
Islip Long Island
Thu 10/29
10:57 am-7:47 am
2 stops47h 50m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$203
IslipPhoenix
ISP Islip Long Island - PHX Phoenix Sky Harbor Intl
ISPPHX
Islip Long Island
Mon 11/2
3:02 pm-12:42 am
3 stops35h 40m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$207
IslipPhoenix
ISP Islip Long Island - PHX Phoenix Sky Harbor Intl
ISPPHX
Islip Long Island
Thu 10/29
6:55 am-2:20 pm
1 stop10h 25m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$217
IslipPhoenix
ISP Islip Long Island - PHX Phoenix Sky Harbor Intl
ISPPHX
Islip Long Island
Sat 10/17
12:00 pm-11:48 pm
3 stops14h 48m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$274
Quickest round-trip
IslipPhoenix
ISP Islip Long Island - PHX Phoenix Sky Harbor Intl
ISPPHX
Islip Long Island
Sat 10/17
3:50 pm-9:00 pm
1 stop8h 10m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$299
IslipPhoenix
ISP Islip Long Island - PHX Phoenix Sky Harbor Intl
ISPPHX
Islip Long Island
Thu 10/29
5:40 pm-12:10 am
1 stop9h 30m
Phoenix Sky Harbor Intl
Mon 11/2
5:45 am-5:05 pm
2 stops9h 20m
$374
IslipPhoenix
ISP Islip Long Island - PHX Phoenix Sky Harbor Intl
ISPPHX
Islip Long Island
Fri 10/30
6:54 pm-3:17 pm
2 stops23h 23m
Phoenix Sky Harbor Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$382
IslipPhoenix
ISP Islip Long Island - PHX Phoenix Sky Harbor Intl
ISPPHX
Islip Long Island
Thu 10/8
5:40 pm-12:10 am
1 stop9h 30m
Phoenix Sky Harbor Intl
Thu 10/15
5:20 pm-10:20 am
1 stop14h 00m
$406
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 September 10, 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
Entertainment
7.5
Food
7.0
Crew
8.6
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentSherrie,Jan 2024
LAX - PHX
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Crew
8.6
Comfort
8.0
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
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Islip and Phoenix flights
Browse other Islip and Phoenix flight options. Last updated on September 10, 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 September 10, 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 September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$428 | Average$474 | FlexibilityNo cancel fee | On-time63% |