I've got an upcoming trip and I'd like to book it using my Avois, but I am trying to avoid BA's YQ surcharge. I'm based in REP but can fly out of any easy-to-get-to city in Southeast Asia. We're flying to either LON or GLA...is it possible to find flights that aren't on BA or does BA automatically only show their own flights in their award search?

Any suggestions for flight searches, routings or airlines to look at would be appreciated. I've got 140k Avios and I'd like to get rid of them.