Originally Posted by
Corpt
I'd be surprised if you have any problem with SQ or TG through SIN or BKK. Availability is likely to be your main issue.
After the recent tightening up on back-tracking, I'd be surprised if they did allow this. Unlike the odd (we all know where...) zone 10 destination that cannot be done except via SIN or BKK, CCU is available via europe on LH or LX. LH tends to have a lot of availability on FRA-CCU in J and F, so if you don't mind paying full miles, then that is probably the most straight forward redemption.
That's not to say that the OP wouldn't get an agent who didn't enforce it, but I suspect that more often than not the ICC wouldn't allow it even if SQ or TG availability came up.