Originally Posted by
guv1976
Wirelessly posted (BlackBerry: BlackBerry8530/5.0.0.1030 Profile/MIDP-2.1 Configuration/CLDC-1.1 VendorID/417)
Since the OP had already booked a BCN-PHL award for the return, there should be no need to purchase any miles. Just re-deposit the miles associated with the BCN-PHL awards (for a fee), and use them for LON/DUB/BRU/CDG-PHL instead. @:-)
Or....See if there is award space from BCN on the new date and buy an inexpensive LON-BCN ticket. The change will be 'no cost' and you'll save on the UK APD.