Packages with open Date are those valid for use in a given period. For example: from March to December. You can travel on any date available within this period, as long as you follow the rules of use. And it's because of these characteristics that we get differentiated values for you:D
And no need to worry, in all open date packages It is easy to identify the dates that can be chosen in the package regulations. It stays on the offer page on our website, in the tab "How to use" in the item "Valid period for travel".