The prices for airline tickets can vary a lot on a daily basis. If you can be flexible in when you leave and return, it can save you a lot of money. Keep that in mind and try to book well in advance. Different studies say that Tuesdays at 3PM is the best day and time to book tickets and Wednesdays are the cheapest day to fly. Also flights early in the morning are more affordable as early morning flights are less popular to book. The best moment to buy your ticket to Curacao according to a research of Skyscanner is 16 weeks in advance. November would be the most economical month to fly.