I broke most of the rules for FT but I used miles for the airfare. We are flying ORD-MIA and the BCN-LHR-ORD on award tickets. The cost of the airfare was more that the cost of the cruise. The flight to Miami is not an expensive flight but the flight from Barcelona to Chicago was in the $800.00 range for a coach ticket. So, I booked tickets on AA using miles. Sometimes I think it is better to burn the miles than pay the money, this was one of them. That said, I have been monitoring the cost of the ticket home from Barcelona, if I find a good deal, I'll cancel the award tickets and rack up the miles.