Originally Posted by
craigthemif
<snip>
However I do know that you will earn far fewer redeemable miles when crediting BA flights to QR and that you will need far more miles and taxes for award flights.
<snip>.
The real taxes are the same for every flight/route. (cash or ff miles)
Awards with carrier surcharges can have some small additional real taxes if the award changes from a non revenue flight to a revenue flight (depends on jurisdiction)