With the exception of Eurostar, which has a 45-minute check-in time, there is no official check-in required for train journeys in Europe or North America. Of course, we always recommend arriving at the station in plenty of time. It is worth remembering that, while there are no set check-in times, at some stations (such as in many Spanish cities, for example), your luggage will need to be quickly scanned before you can board.