When travelling on such short distances, you can take into account also busses and carpooling options: with some luck you will find very cheap options, even if you book on short notice.
Which stations serve the rail line Grevenmacher - Mersch?
The trains to Mersch will leave from Grevenmacher, Gare Routière and will arrive at Mersch.
How long does it take from Grevenmacher to Mersch and when do the trains leave?
With the fastest connections you will be in Mersch in 57 minutes, but on average it takes 1 hour and 17 minutes. The first train headed to Mersch is at 06:11, while the last one leaves Grevenmacher at 19:11.