Don't forget to buy food and drinks in advance if you need them: train stations do not always have shops, while onboard cafés are not always available and often very expensive.
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 do the trains to Liège leave from?
The trains to Liège leave Jette from Jette and arrive in Liège-Guillemins / Luik-Guillemins or Liege-Guillemins.
What time do the trains to Liège leave and how long is the journey?
The first train to Liège leaves at 06:12, whereas the last one at 22:12. On average, the journey lasts 1 hour and 16 minutes, but with the fastest connections you will be in Liège in 1 hour and 5 minutes.