Originally Posted by
markle
In the past I've been able to successfully fly on the return leg of a ticket where I didn't use the outbound flight (on a KL operated by VG), so my impression is that they're not so efficient at picking these things up.
As far as I know, this is not possible now.
They are getting quite strict. If you are travelling from Antwerp to anywhere via Amsterdam and the first leg is by train, you still to pick your train ticket in Antwerp otherwise they will not let you on the plane in Amsterdam.