Originally Posted by
pixitha
However, on the NS segment between BRU-AMS, booking via NS.nl, the ticket is 42EUR/pp. If I buy that ticket, can I stop get off in Antwerp and/or Rotterdam and catch the next IC train that comes through?
If Brussels-Amsterdam is on the InterCity (not Thalys) then the ticket should be valid on any InterCity train on that route for that day (ie: it's not tied to a specific train). However, I am not sure if this allows break-of-journey en route.
If you know you want to break your journey, then you could just get two (or three) separate tickets to start with. For example,
www.belgianrail.be shows Brussels - Antwerp for €7.30, and
www.nsinternational.nl shows Antwerp - Amsterdam for €31.40 - so a total slightly less than buying a direct Brussels - Amsterdam ticket. However, I
think the €7.30 Brussels - Antwerp ticket is
NOT valid via Brussels Airport - so you couldn't use it on the Brussels - Antwerp (- Amsterdam) train; you'd have to use a domestic service Brussels - Antwerp that avoids Brussels Airport.