To save on the cost of your flight from Islip to Aruba, book at least 35 days before your planned departure. Booking around this time can save you about 36% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $539 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $605.
Due to multiple factors, expect to potentially pay more when booking in July. For low rates, May can be a great choice for travel to Aruba. Flights to Aruba from Islip in May are about $484 on average during May, but can be found for as low as $323.