Originally Posted by
corporate-wage-slave
Note the indent section in the Wiki of the main linked thread, dated 12 February 2018, approximately half way down, for an easy online solution, so long as you have plenty of Avios: you can now book the return online via a separate booking (which has some advantages as we know from elsewhere), initially at full rate. However you can then call up, have the voucher applied to this new booking, and receive the excess Avios back. For flights to USA we think this is expensive than a normal return, due to differential surcharges, but perhaps not for other areas, and indeed cheaper in some cases.
Has this been a given some perhaps-deserved attention? I'm thinking about HKG: does this now mean we can benefit from HKG's no-YQ policy and book the return of 241 for £31pp, saving £164pp?
A lesser example would seem to be SYD, where the ex-Oz YQ is £184e/w, saving £52pp. Ex-NRT it's £71 YQ, saving £93pp.
You might even want to do this shorthaul: eg. coming back CE from TLL for €7 instead of £25. Beware of course the risk of double cancellation fees.