Christmastime in Austria and Germany is a magical time of the year with plenty of markets across the country with modern versions such as Tollwood in Munich (Review here) or Salzburg and the town where Silent Night was first sung 200 years ago... In Munich you can also explore the Munich Airport Visitors Park while in Bavaria you can find Schloss Linderhof , Oberammergau and Schloss Neuschwanstein (Sleeping Beauty Castle)
American Airlines has a decent sale for travel between Los Angeles and Vienna, Austria via London with a combo with British Airways and American Airlines.
If booking under British Airways codes, American Airlines flyers would earn 18753 EQMs 3125 EQDs while Executive Platinum members would obtain 34380 RDMs, Platinum Pro 28129 RDMs, Platinum 25004 RDMs, Gold 21878 RDMs, Base Members 15627 RDMs
American Airlines 777 Business Class