For two award flights I have recently booked, Qualiflyer accepted the following routing for one 20k miles ticket each:

1st award:
DUS-BSL-GVA -Stopover- GVA-ZRH-OTP (Final Dest) OTP-ZRH-DUS

2nd award:
DUS-WAW-IST -Stopover- IST-OTP (Final Dest) OTP-WAW-DUS

So your initial itinerary looks ok to me.


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Hajo's World