Getting from Brussels to Luxembourg (and return)
· Updated · BootsnAll
Luxembourg City is about 214 km south-east of Brussels, and the direct train is the easy way to do it: roughly three hours, from about €18, with no seat reservation to worry about. A bus is the budget backup. Flying between the two makes no sense on a trip this short.
The payoff at the other end is a small capital with a big fortress. The old town and its fortifications are a UNESCO World Heritage Site, and the walk along the walls above the Grund and past Neumünster Abbey is the thing most people remember. Place Guillaume II and the Place d'Armes are the two main squares, a short walk apart.
By train
Belgian railways (SNCB) run InterCity trains from Brussels-Midi to Luxembourg about once an hour. SNCB's international arm lists the fastest direct train at 2 hours 54 minutes, with fares from €18.10, as of 2026. Seat61 puts the typical run at around 3h16 and notes that a few departures need a change at Arlon, just before the border.
Fares and discounts
The fare rules changed in a way that works in your favour. Second-class travel inside Luxembourg has been free since 1 March 2020, so a cross-border ticket only charges you for the Belgian part of the trip. On top of that, SNCB's current fares (valid from 15 October 2025) give:
- Adults 26 to 64: 30% off the Belgian part on Saturdays, Sundays and public holidays.
- Under 26 and over 65: 40% off the Belgian part at any time.
- Children under 12: free with a paying traveller aged 12 or over, up to four children per adult.
Seat61 notes that tickets are good for any train on the date you choose, whichever one you picked when booking, so you can linger over lunch without losing your fare. Buy online from SNCB International and show the ticket on your phone.
A naming trap
Brussels has its own station called Bruxelles-Luxembourg, in the European Quarter. When you book, make sure your destination is Luxembourg, the city in the Grand Duchy, and not that Brussels stop.
Once you arrive, you don't need another ticket. Buses and trams are free across the whole Grand Duchy, so the ride from the station up to the old town costs nothing.
By bus
FlixBus runs about seven buses a day, with a fastest time of 2 hours 45 minutes and fares from around €17 as of 2026. Brussels stops include Brussels-North, Gare du Midi and the Boudewijn metro station; in Luxembourg the buses stop at the P+R Bouillon car park and at Place de la Gare by the central station. The bus is sometimes a few euros cheaper and sometimes quicker on paper, but it's at the mercy of the Brussels ring road, and the train isn't.
By car
It's about 214 km, most of it on the E411 motorway through the Ardennes, and a little over two and a half hours without traffic. Driving only makes sense if you want to stop on the way, in Namur or in the Ardennes towns, or if you're carrying on into Germany or France. Leave extra time for getting out of Brussels at rush hour.
Coming from Amsterdam?
SNCB lists no direct train from Amsterdam to Luxembourg (the quickest takes about six hours with a change), so most people go through Brussels anyway. Our guides to getting from Amsterdam to Brussels and getting from Amsterdam to Luxembourg cover the first leg. If you're lining up several cities, Bruges is an easy side trip from Brussels before you head south.
Planning a longer loop through Europe? AirTreks, BootsnAll's sister company, has built multi-stop and round-the-world tickets since 1987, and a route like this one is a good template:
Four weeks through Central and Western Europe with one overland stretch, flying home from Amsterdam, so Brussels to Luxembourg by train slots in easily.
FAQ
Do I need to book the Brussels to Luxembourg train in advance?
No. There's no compulsory reservation and the ticket is valid on any train that day. Seat61 describes the fares as fixed-price with unlimited availability, so booking weeks ahead won't save you money the way it does on Eurostar.
Is Luxembourg worth a day trip from Brussels?
It's six hours of travel for the round trip, so a day trip is tiring. One night lets you see the old town and the fortifications without rushing.
Is public transport in Luxembourg really free?
Yes, second-class trains, buses and trams are free for everyone inside the country. You only need a ticket for first class or for journeys that cross the border.