We just signed up for the 2020 Greece tour followed by the Best of the Adriatic. I could not find any routing I liked from Athens to Ljubljana. There are no direct flights and any flight I found online seemed to involve long layovers. Flight plus train or bus did not seem to be easy either.
The best I can do seems to be fly Athens to Vienna on the final day of the Greece tour, then From Vienna to Ljubljana the next day. We would just stay at a hotel at Schwechat that night.
Any better options available?
-Bob