In general, when booking your flight to Amsterdam, February is the cheapest month on average.
On average, from most locations, when planning your trip to Amsterdam, 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 Amsterdam on a Monday is the cheapest. Conversely, departing on a Saturday seems to be the most expensive.
Typically, cheap prices to Amsterdam are most often found for evening flights. Cheap prices are less likely for morning flights.