In 2026, the cheapest month to fly to Amsterdam is consistently January or February. This "deep winter" period follows the expensive Christmas and New Year's season and precedes the popular Tulip season in late March. During these months, demand for the Netherlands drops significantly due to the cold, damp, and windy weather, leading airlines to slash fares to fill seats. A secondary "shoulder" window for deals often appears in late October and November, when the autumn foliage is beautiful but the summer crowds have vanished. Conversely, April (due to King's Day and the Keukenhof gardens) and the mid-summer months of July and August are the most expensive times to fly. For 2026 travelers, booking a Tuesday or Wednesday departure in mid-January can often result in fares that are 40% to 50% lower than those found in the peak summer window, making it the ideal time for budget-conscious visitors who don't mind the chilly Dutch winter.