<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by Julie the Newbie:
Maybe NW or AA would make more sense if I want to upgrade to F on int'l flights? </font>
You can't upgrade to FC from economy is it is a 3 class of service flight (which applies to most/all international flights) unless you're paying for a business class ticket. Also, NW doesn't have FC internationally. Only UA and AA do of the U.S. airlines.