To save on the cost of your flight from Islip, New York to Reykjavik, book at least 60 days before your planned departure. Booking around this time can save you about 31% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $545 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $634.
May can be a great time to fly to Reykjavik from Islip, New York with a flight ticket averaging about $450. Cheapflights users have found deals in the month of May for as cheap as $367. The most expensive prices can be found in the month of December.
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 Reykjavik as you normally would.