SweetsugarNL

So i am wondering if we need to book our Alaska cruise now or wait. In Europe there are no price drops. A balcony is out of question and a inside is almost 1500 (euro) pro person. With have it all. Is it likely that these price drops? Because if we have booked we stick with our price. And also there is a up to 1000 euro airfare credit but I dont know how this works. Can we choose or own flights or need it to be on special dates?