Trip.com
>
Flights
>
Flights to United States
>
Flights to Arizona
>
Flights to Phoenix
Hotels in Phoenix
>
Flights from Islip to Phoenix

Search cheap flights from Islip to Phoenix in the next 3 months. Based on Trip.com's latest 7-day data, one-way fares start at US$168, and round-trip tickets start at US$488.

      • ISP 12:25
        12h 14m
        1 stop
        PHX 22:39
        Islip - Phoenix | Thu, Jan 15 | Jetblue Airways
        PHX 23:05
        10h 30m
        1 stop
        ISP 11:35
        Phoenix - Islip | Mon, Jan 19 | Jetblue Airways
        US$488 US$1,144
        56% OFF
        56% OFF
        US$1,144 US$488
      • ISP 09:52
        12h 39m
        1 stop
        PHX 20:31
        Islip - Phoenix | Sun, Jan 18 | Frontier Airlines
        PHX 17:10
        13h 30m
        1 stop
        ISP 08:40
        Phoenix - Islip | Sat, Jan 24 | American Airlines
        US$548 US$1,144
        52% OFF
        52% OFF
        US$1,144 US$548
      • ISP 09:40
        12h 51m
        1 stop
        PHX 20:31
        Islip - Phoenix | Sun, Jan 18 | Jetblue Airways
        PHX 17:05
        13h 50m
        1 stop
        ISP 08:55
        Phoenix - Islip | Fri, Jan 23 | American Airlines
        US$549 US$1,144
        52% OFF
        52% OFF
        US$1,144 US$549
      • ISP 09:40
        26h 27m
        1 stop
        PHX 10:07
        Islip - Phoenix | Fri, Feb 6 | Jetblue Airways
        PHX 17:15
        13h 40m
        1 stop
        ISP 08:55
        Phoenix - Islip | Mon, Feb 9 | American Airlines
        US$561
        51% OFF
        US$1,144 US$561
      • ISP 12:25
        24h 25m
        1 stop
        PHX 10:50
        Islip - Phoenix | Wed, Jan 14 | Jetblue Airways
        PHX 12:00
        21h 35m
        1 stop
        ISP 11:35
        Phoenix - Islip | Sun, Jan 18 | Jetblue Airways
        US$735
        36% OFF
        US$1,144 US$735
      • ISP 07:25
        15h 38m
        1 stop
        PHX 21:03
        Islip - Phoenix | Fri, Feb 6 | Cape Air
        PHX 12:00
        21h 35m
        1 stop
        ISP 11:35
        Phoenix - Islip | Mon, Feb 9 | Jetblue Airways
        US$783
        32% OFF
        US$1,144 US$783
      • ISP 07:30
        15h 33m
        1 stop
        PHX 21:03
        Islip - Phoenix | Sun, Jan 18 | Cape Air
        PHX 22:19
        10h 45m
        1 stop
        ISP 11:04
        Phoenix - Islip | Fri, Jan 23 | Jetblue Airways
        US$809
        28% OFF
        US$1,144 US$809
      • ISP 19:50
        17h 45m
        1 stop
        PHX 11:35
        Islip - Phoenix | Sat, Dec 27 | Jetblue Airways
        PHX 22:59
        17h 46m
        1 stop
        ISP 18:45
        Phoenix - Islip | Sun, Dec 28 | Jetblue Airways
        US$939
        18% OFF
        US$1,144 US$939
      • ISP 07:30
        31h 5m
        1 stop
        PHX 12:35
        Islip - Phoenix | Wed, Jan 14 | Cape Air
        PHX 13:45
        24h 30m
        1 stop
        ISP 16:15
        Phoenix - Islip | Sun, Jan 18 | Delta Air Lines
        US$984
        14% OFF
        US$1,144 US$984
      • ISP 12:40
        10h 23m
        1 stop
        PHX 21:03
        Islip - Phoenix | Thu, Jan 15 | Cape Air
        PHX 22:19
        10h 45m
        1 stop
        ISP 11:04
        Phoenix - Islip | Mon, Jan 19 | Jetblue Airways
        US$1,030
        10% OFF
        US$1,144 US$1,030
      • ISP 13:00
        17h 25m
        1 stop
        PHX Invalid Date
        Islip - Phoenix | Sat, Dec 13 | Normal Airline
        PHX 15:00
        6h
        Nonstop
        ISP 16:00
        Phoenix - Islip | Mon, Dec 15 | Normal Airline
        Find More Flights
        Find More Flights
      • ISP 12:25
        10h 27m
        1 stop
        PHX 20:52
        Islip - Phoenix | Thu, Jan 22 | Jetblue Airways
        US$168 US$529
        68% OFF
        68% OFF
        US$529 US$168
      • ISP 12:20
        13h 29m
        1 stop
        PHX 23:49
        Islip - Phoenix | Thu, Jan 1 | Frontier Airlines
        US$225 US$529
        57% OFF
        57% OFF
        US$529 US$225
      • ISP 19:40
        29h 9m
        1 stop
        PHX 22:49
        Islip - Phoenix | Sun, Dec 28 | Jetblue Airways
        US$293 US$529
        45% OFF
        45% OFF
        US$529 US$293
      • ISP 09:40
        12h 51m
        1 stop
        PHX 20:31
        Islip - Phoenix | Sun, Jan 18 | Jetblue Airways
        US$315
        40% OFF
        US$529 US$315
      • ISP 10:46
        15h 3m
        1 stop
        PHX 23:49
        Islip - Phoenix | Thu, Dec 18 | Jetblue Airways
        US$317
        40% OFF
        US$529 US$317
      • ISP 10:46
        15h 3m
        1 stop
        PHX 23:49
        Islip - Phoenix | Thu, Jan 1 | Jetblue Airways
        US$372
        30% OFF
        US$529 US$372
      • ISP 16:28
        32h 21m
        1 stop
        PHX 22:49
        Islip - Phoenix | Sun, Dec 28 | Frontier Airlines
        US$396
        25% OFF
        US$529 US$396
      • ISP 09:59
        15h 58m
        1 stop
        PHX 23:57
        Islip - Phoenix | Sun, Jan 18 | Cape Air
        US$406
        23% OFF
        US$529 US$406
      • ISP 07:30
        31h 4m
        1 stop
        PHX 12:34
        Islip - Phoenix | Thu, Jan 1 | Cape Air
        US$445
        16% OFF
        US$529 US$445
      • ISP 10:46
        11h 39m
        1 stop
        PHX 20:25
        Islip - Phoenix | Tue, Dec 23 | Jetblue Airways
        US$476
        10% OFF
        US$529 US$476
      • ISP 13:00
        17h 25m
        1 stop
        PHX Invalid Date
        Islip - Phoenix | Sat, Dec 13 | Normal Airline
        Find More Flights
        Find More Flights

Displayed flight fares from Islip to Phoenix are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Islip to Phoenix Flight Details

The distance between Islip and Phoenix is about 3,517.41 km. Based on Trip.com's latest data, travel demand is highest in July. The off-season for travel is October.

Cheapest one-way flight priceUS$168
Cheapest return ticket priceUS$488
Cheapest monthOctober
Peak season for travelJuly
Flight distance3,517.41 km

When is the cheapest time to book flights from Islip to Phoenix?

The cheapest time to fly from Islip to Phoenix: Jan 25 to Feb 1 — one-way prices start at US$119.

Cheapest flights
From price
Search
  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
  • 18
  • 815
  • 1522

  • Mar

    221
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • What are the cheapest flights from Islip to Phoenix (ISP-PHX)?

    Based on Trip.com data, Jetblue Airways offers one-way fares as low as US$168 on Cheapest nonstop routes (e.g. ISP to PHX on Thu, Jan 22), while Jetblue Airways offers Cheapest nonstop round-trips from US$488 departing on Thu, Jan 15 and returning on Mon, Jan 19.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Islip to Phoenix is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Islip to Phoenix, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Jan 22, with one-way flights priced at just US$168.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Jetblue Airways.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Phoenix travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Islip to Phoenix is October, when demand for travel is lower.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Islip to Phoenix on December 27, 2025 with Jetblue Airways, with prices starting at US$938.
  • The time difference between Phoenix and Islip is 2h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Explore More Popular Flights