Find a great deal and save up to 58% by booking at least 55 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Islip, New York to Ireland within the next two weeks, with the cheapest ticket starting at $640.
Due to multiple factors, expect to potentially pay more when booking in July. For low rates, October can be a great choice for travel to Ireland. Flights to Ireland from Islip, New York in October are about $543 on average during October, but can be found for as low as $356.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Islip, New York to Ireland as you normally would.