Our data shows that July tends to be the cheapest month to fly to Harrisburg from Islip, New York. Users have commonly found prices around $233 for the month, but tickets can be as low as $138. Due to multiple factors, prepare for potentially higher prices in March.
When flying from Islip, New York to Harrisburg, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
No data available for this route at this time. Please check back soon.