Originally Posted by
SanDiego1K
7 years on, is this still the way to get between BRU and Bruges?
Basically, yes. When you buy your ticket in the airport they will tell you what is at that moment the fastest connection.
Personally I prefer to change in Brussel Centraal with luggage, instead of Brussel Zuid/Midi. There are elevators in Centraal, and I haven't found those yet in Midi/Zuid.
Once I arrive in BRU and exit customs/baggage claim, will I see signs to the train station?
They are there. But if you don't see them, after customs go to the escalators/elevators area at your 1 o'clock (don't know if you get what I'm trying to say

), and go down to the lowest level.
Will I be able to buy a thru ticket there to Bruges?
Yes, see above.
Will a RT ticket be cheaper than one way?
No, unless you can buy a weekend ticket. (Basically you have to go on Friday afternoon or Saturday on come back before Sunday night, the same weekend.)