Originally Posted by
NHFL9
FWIW, Northwest was more restrictive as to what fares you could upgrade (only Y or B.) As I recall, it was about $2,900 for an upgradable fare BDL-AMS-FCO.
I used to by B-Fares on NW LAX-DTW-FRA for $1100 - $1400. Would then upgrade with 60K miles. Cheap coach seats where $500-800 by comparison.