In 2005 I was the only passenger on a PRG-VIE flight on Austrian. I think it was a Fokker 70.

I was waiting for everyone else to get on the bus before me but no one got up. I thought I’d be the trendsetter and be the first but no one followed. Once on board, the FAs did the safety announcements for me and the empty seats (funny because one FA was standing at the exit row 10 rows behind me doing her announcements). They spoiled me with what confectionaries they had on board and then I was invited by the Captain to watch us descend on Vienna from the cockpit. The view from the cockpit at night just minutes before touchdown over such a beautiful city was amazing!