Start with the 07:00 FlixBus bus from Frankfurt to Düsseldorf, about 5h 5m. Transfer in Düsseldorf, then take the 13:00 FlixBus bus on to Cologne (45 min). Transfer in Cologne, then take the 15:30 FlixBus bus on to Liège (2h 5m). You arrive in Liège around 17:35. In total it's roughly EUR 59 over 17h 10m, 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 (17h 10m). Bus (FlixBus, 5h 5min) + Bus (FlixBus, 45min) via Düsseldorf + Bus (FlixBus, 2h 5min) via Cologne.