When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 55 days in advance, which can save you up to 58% on flights from Islip to Ireland compared to booking the week you need them. Waiting 55 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $640. For sooner than that we have options available in the next 3 days from $834.
The best pricing can be found in the month of October. Prices to Ireland from Islip average $543. You can even find prices in October for less than $543, as users have found deals to Ireland from as low as $356. The month of July appears to be one of the more expensive times to travel to Ireland from Islip. Flying in the targeted month can save you up to 31%.