Some private companies offer short discovery sessions for enthusiasts, but the few I know of do cost around 150-250 euros for an hour. This particular one was within Airbus facilities, so definitely not something accessible to the general public.

This is a cheaper version, that I have experienced:

http://www.flyipilot.com/

”iPILOT is currently available in London, Munich, Berlin, Dresden, Hamburg, Düsseldorf, Prague, Doha, Dubai, Basel, Zurich”

If you’re already a private pilot: http://www.atopjets.com/

EAA Airventure in Wisconsin. Boeing has had some of their simulators available for the public to try in past.