Doing a business trip to UK and Belgium and wife wants to come along. She has to leave a day earlier than me, but for a quasi-last minute deal (Sept 27 - Oct 5) I think I did okay:
ATL to DTW in F
DTW to LHR in BE
BRU to ATL in BE
100,000 miles plus $52.00 in fees. When pricing same itinerary in coach, the mileage requirement was 180k and $292 in fees.