re: ( Now gone) "how do I book a J any seat award at classic award points level" thread.
Thanks - that makes sense now. If you have a low FF points balance then the co-payment lets you stretch your FF balance over more JASA's - your cash co-payment becomes synthetic FF points, and if it costs a $100 cash co-payment to reduce the points cost by 10,000 then that is like buying FF points at 1c per point which is ok.
I am the reverse - I have lots of points accumulated almost wholly through the CC expenses of my business over many years. I try to get 3-4% yield on my points when redeeming.
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eg Here are my calcs on a just booked a JASA in March 2012 - QF581/582 - SYD-PER-SYD
Calcs for going Business
FF classic = 72k points business + $48 taxes, at 1FF=1c = $768
FF any seat = 89k points business + earn 5.1k points as well so only 83.9k points net, at 1FF=1c = $839 so $71 more than classic but get 160 SC so cost per SC is 44c compared to booking a classic, non-SC earning, seat.
Cash $4,026 business return so $4,026 / $839 = 4.8% yield, or each point was worth 4.8c on redemption. Also got 2x 80 = 160 status credits so will earn 64% of Silver renew requirements of 250 SC.
Calcs for going Economy
JASA looked optimal to me but I did look at doing it economy as well as not a long flight, I usually go economy domestic and save big burning points for something better on long haul international, so could I justify flying business for this trip?
FF classic = 36k in economy + $48 taxes, at 1FF=1c = $408
FF any seat = 55k in economy + earn 4k points in economy as well so only 51k points net, at 1FF=1c = $510 so $102 more than classic but get 80 SC so cost per SC is $1.27 compared to booking a classic, non-SC earning, seat.
Cash $514 economy return so $514 / $510 = 1% yield, or each point was worth 1c on redemption. Also only got 2x 40 = 80 status credits so will earn 32% of Silver renew requirements of 250 SC.
As I don't fly for work so don't fly much, doing SYD-PER-SYD as a JASA gives me more SC bang for my FF buck.
Final calc for me is that I get to try out Qantas domestic business on SYD-PER-SYD on a 747-400 for $329 more than economy and get 80 more SC when compared to getting an economy ASA (albeit at twice the cost of a classic economy award). So probably worth it - more justifiable than a JASA SYS-CBR-SYD SC run anyway!
If you think that any of my calcs or assumptions are wrong, please respond to let me know - I put this up to see if you think it was an optimal decision.
TIA!
Angus