Originally Posted by
guv1976
Would not be that much of a savings in this particular case (just 20,000 Avios), assuming that JL was flown on the first leg, and CX on the second. Plus, the OP would have to pay whatever taxes and surcharges apply to the SYD-SFO leg in Economy.
the difference in that itinerary between F and Y pricing is only 20k avios?