No flight routes found for your trip from Poughkeepsie to Islip. Instead, check out the flight deals below for nearby routes: New York to Islip.

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

Poughkeepsie to Islip Flight Details

Check flight details (distance, duration, best time to book) for routes from New York to Islip to plan your trip from Poughkeepsie to Islip.

Cheapest one-way flight priceMOP 397
Cheapest return ticket priceMOP 1,514
Cheapest monthOctober
Peak season for travelJuly
Flight distance75.43 km

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

View price trends for New York to Islip to find the cheapest time for your trip from Poughkeepsie to Islip.

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

Frequently asked questions for flights from Poughkeepsie to Islip when there's no local airport. All departures and arrivals are via New York to Islip.

  • What are the cheapest flights from New York to Islip (NYC-ISP)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as MOP 397 on Cheapest nonstop routes (e.g. JFK to ISP on Wed, Jan 28), while Jetblue Airways offers Cheapest nonstop round-trips from MOP 1,514 departing on Thu, Jan 22 and returning on Mon, Jan 26.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from New York to Islip 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 New York to Islip, 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 Wed, Jan 28, with one-way flights priced at just MOP 397.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
    · 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 Islip travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from New York to Islip is October, when demand for travel is lower.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from New York to Islip on December 11, 2025 with Jetblue Airways, with prices starting at MOP 2,371.
  • The time difference between Islip and New York is 0h.
  • 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.