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 serve the rail line Etterbeek - Antwerp?
The trains to Antwerp can leave from Etterbeek and arrive at Anvers-Central or Anvers-Central / Antwerpen-Centraal.
How long does it take from Etterbeek to Antwerp and when do the trains leave?
While the first train to Antwerp leaves at 05:11, the last one is scheduled for 20:11. The average duration of the journey is of 1 hour and 23 minutes, but the fastest trains can get you to Antwerp in 1 hour and 3 minutes.