Concerto, every year, again and again, I book successfully my mother in law (living in Mallorca) over the holidays on swiss (before Swissair) on a Qualiflyer business-class-ticket for 25'000 miles: business-class because of the Lounges comfort, the free green SBB luggage tags (for luggage sent directly to Wengen) and the higher luggage allowance: XMAS-presents for us ...:
dec-6-2002:
LX PMI (Palma di Mallorca)-ZRH-VIE for her regualr annual 'theatre holidays' in Vienna
dec-20-2002:
LX VIE-ZRH, holidays with us at our home away from home in Wengen
http://www.wengen.ch
jan-3-2003
LX ZRH-PMI
I agree, that it is in fact only one stopover (Zürich) plus the regular point of return (Vienna). But that is also the case in the opening (questioning) post here, isn't it?