In general when looking for the cheapest flight to Heraklion, try to book your flight during the month of January for the best deal.
On average, from most locations, when planning your trip to Heraklion, try to book your flight in the region of 60 days in advance for the cheapest prices.
Most of our users find that booking their departure to Heraklion on a Sunday is the cheapest. Conversely, departing on a Friday seems to be the most expensive.
On average you can find the best deals on plane tickets to Heraklion when looking for flights with morning departure times.