Belgian Railways (NMBS/SNCB) operates a train from Brussels to Maubeuge every 30 minutes. Tickets cost $9 - $13 and the journey takes 53 min. TEC also services this route every 4 hours. Alternatively, FlixBus operates a bus from Brussels to Maubeuge twice a week. Tickets cost $4 - $7 and the journey takes 1 h 10 min. TEC also services this route every 4 hours.
From Bruxelles-Central train to Mons SNCB then line 41 bus to Maubeuge Fournier. 2 h 31 min 11€. From Brussels, Brussels-North station bus to Mons SNCB then line 41 bus to Maubeuge Roosevelt. 2 h 50 min 8€. From Brussels drive to Maubeuge. 1 h 3 min 12€.