The best pricing can be found in the month of January. Prices to Islip, New York from New Haven average $744. You can even find prices in January for less than $744, as users have found deals to Islip, New York from as low as $390. The month of February appears to be one of the more expensive times to travel to Islip, New York from New Haven. Flying in the targeted month can save you up to 181%.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from New Haven to Islip, New York as you normally would.