Originally Posted by
arf1410
Have lots of miles, but no points that that people seem to be referring to. Spouse will be flying from west cost USA to Australia. Business class upgrade seem to be very expensive, but from economy to premium economy, seem like a good deal. 30k miles each way? But have trouble figuring out if that is from all economy fair classes, or just more expensive economy classes.
It should give you the specific amount of miles to upgrade for your flight / class. Check Manage Trip > Upgrade > select miles (versus money) and it should tell you.