I'm going to be traveling from Paris to Luxembourg, then to a number of cities in Belgium. In my past experience in Europe, I had to book a ticket in advance (to get a good rate). For example from Amsterdam to Munich and it was quite expensive.
I looked into traveling from Paris to Luxembourg and it actually lists the trips on the timetables, so I assume that means that the price is the same whether I book the ticket a month in advance, or buy the ticket 5 minutes before departure. So, no need to book it in advance, correct? At least, here is my understanding... If it's listed in a Timetable, then its just a regular train that runs daily, therefore no need to go and buy a ticket beforehand. What is odd to me is that International destinations are treated like regular (domestic) trains.
Sorry for the long post, as I'm simply trying to understand the "system" of trains in these countries. More importantly, I don't want to book anything that I don't absolutely have to book. I'm leaving for Europe in only 2 weeks, so IF (and only if) I must book a trip, then I need to do it now. Thanks in advance!!!
Jason