Permitted (backtrack) route Cairo-Europe-SIN?
 

Doing a quick search on awards from Cairo to Singapore, on most days the system returned routings via IST or DBX or BKK, but on one day it also threw up CAI-FRA-SIN! So, I wonder if anyone in FlyerTalkland has experience of successful CAI-Europe-SIN routings using the call centre, rather than just finding the rarely offered routing that came up on the search engine?

I'd love to route via a European port to achieve a sub-24hr mini-break ;)

Why would you want to call instead of simply booking it online? If it is available and the system let's you, just go for it - I have yet to encounter a scenario where an award was successfully booked and the airline retrospectively decided to not honour the booking.

Thanks for your comment. Perhaps I wasn't clear enough: I found this one routing. On one day. FRA isn't necessarily the ideal option. I was curious if other European ports/days would be viable. Other days or other ports would require interaction with the call centre, given that the system wasn't offering them through the search engine.