Originally Posted by
anabolism
Good to know! Is the difference in taxes/fees? The on-line tool will show the taxes and fees, and the RTW desk can be coaxed into reading them out (but they don't seem to like it). Sounds like it might be useful to do this to figure out what accounts for the difference.
In my experience the AA rates desk (which I believe is no longer in Dublin as that office has been/is being closed) tends of late to include more BA YQ charges than you may see online. I'd query them about the fuel surcharge numbers - YQ or YR in the "taxes" - to see if that's the case.
Also make sure that any LHR transits are noted as such by the RTW desk and not inadvertently being treated as stopovers, thereby incurring UK APD fees.