I'm BD*G and flying UA BRU/IAD in F in October. I know the flight departs from the non-Schengen area (Pier B) and the SAS lounge is in the Schengen pier (Pier A).

Is there any way in which I can access the SAS lounge (recognising this may mean go through security and immigration a couple of times) or am I restricted to the BD lounge in Pier B?

Thanks for any suggestions.