Start with the 07:30 FlixBus bus from Frankfurt to Aachen, about 3h 25m. Transfer in Aachen, then take the 11:15 FlixBus bus on to Brussels (2h 5m). Transfer in Brussels, then take the 15:30 FlixBus bus on to Liège (1h 30m). You arrive in Liège around 17:00. In total it's roughly EUR 49 over 16h 15m, 3 transfers.
Opens Omio — enter your date to compare trains and buses for this route; the price is finalised at checkout.
Opens Omio — enter your date to compare trains and buses for this route; the price is finalised at checkout.
Opens Omio — enter your date to compare trains and buses for this route; the price is finalised at checkout.
Ground-only route to Liège by bus (16h 15m). Bus (FlixBus, 3h 25min) + Bus (FlixBus, 2h 5min) via Aachen + Bus (FlixBus, 1h 30min) via Brussels.