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No.

They experimented with a system a few years ago that went nowhere.

We hear of one-off anecdotes from outports (although I haven't seen any mentioned in the last few years), but practically speaking "no". CX doesn't auction off their front seats on the cheap like some other carriers.

Sadly, your really only option if you want a seat forward is to pay the difference.

Anecdotally, last year I was offered a $500 cash upgrade from Y to W (aisle seat) on CX873, SFO-HKG. At check-in, the agent told me that there would be a possibility of an op-up and to check with the lounge agent closer to departure. At the lounge, the agent looked me up and informed me that there wouldn't be an op-up, but after another minute or so of typing, she offered the cash upgrade. I declined and stayed in my exit row Y seat.

Other times, I've never asked for or been offered a cash upgrade.

Because of traffic i was one of the last to check in on a recent ORD-HKG. Overheard a lady in the next counter asking for and accepting a cash Y to W upgrade for $400 (some amount like that), she swiped her card happily...

I was originally very upset because the seat map was chock-block for W and Y and wide open for J until t-6 when W became ridiculously empty and J almost full. Turns out they already pre-op up'd ~15 DM/GO/IDs, but this lady made me the very last op up of the day - just minutes before we were about to board. Happy ending to my 4th op up on ORD-HKG this year :)

Another anecdote: from October 3, 2015 at MLE: Was offered to upgrade from Y to W for 300 USD. There was only 1 seat left though, so the wife and I stayed in Y. Otherwise, I would have taken that in a heartbeat for a ~6 hour overnight flight.

Happy to report that status + low BN + flight load seemed to be the secret recipe that got me 2/2 op-ups from Y to J this past weekend.

7/2 CX650 - A33E. SEC 1, GO. Op-up happened when airport check-in opened
7/5 CX715 - B773Z SEC 19, GO. Op=up at gate.

Y was zeroed out on both flights

How does one check availability for PE to J upgrades? Does J have to be available as an award or do upgrades come from another inventory? Thank you!

technically it's Asia Miles award inventory, but in practice it is slightly more restrictive. Normally if you see Asia Miles award availability - which you can check on the CX or Asia Miles website after logging in to your account, or using KVS - the upgrade redemption is available. However, in a few rare instances people have reported seeing regular award inventory available but not being permitted to use that inventory for an upgrade.

Obviously, goes without saying you must be in W or R class (not E) to use it. And only Asia Miles permitted for this type of award.

I booked a Y ticket on AA ticket stock that includes one code share and one CX flight number.

LAX-HKG: AA Metal (I used an SWU to UG to J)
HKG-CGK: AA8913 Operated by CX

CGK-HKG: CX718
HKG-LAX: AA Metal

My question pertains to the CX flights. One is a code share and one is an actual CX flight number.

Will I be able to UG these flight using money or miles? I have almost 100,000 Citi Thank You points that transfer to Asia Miles.

How would I check availability?

This will be my first time on CX, although I have an AA award ticket BKK-HKG-LAX booked on CX First next January. :)

I am not sure about the AA codeshore to CGK.

Some things to note:
*You cannot upgrade with money unless you pay the fare difference. I saw The Points Guy blog erroneously advertising to readers a day or two ago a bunch of carriers that allow cash upgrades using a bidding system. Just flat out wrong information. CX tried this as an experiment a few years ago on very limited #s of flights, and it went kaput without much explanation soon after.

If you're on a discounted economy class, CX has been known to not even waive the cancellation fees or whatnot, so you'll basically have to eat your economy ticket and whatever penalties and rebook in J. Generally NOT a cheap option.

*Upgrades are possible with Asia Miles provided you're in a valid booking class which = Y, B, H, K or M. No other sub fareclasses can upgrade. Unrelated to your situation, but in PEY, only W and R can upgrade, not E.

*You can only upgrade 1 class on CX. The upgrade-killer PEY is on many CX birds. True, CGK is often operated by a 2 class A330s, B773s and B772s without PEY (these designations are 33P, 73Z and 772Z and all feature the same regional J product), but in the event a 3 or 4 class long-haul bird with PEY (33K, 35G, 77G, 77H, 74K, 34J) you can only upgrade from Y to PEY. Your absolute best luck would be if 33E serves the route that day, because this is a somewhat special configuration long-haul A333, which only has two classes (Y and J, no PEY). https://www.cathaypacific.com/cx/en_...0-300-33E.html. These birds are mainly used for the ME, India, Sri Lanka and Maldives but could make an appearance on CGK in case of a swap or good scheduling luck.

A more likely scenario is you fly on 33P, 773Z or 772, all which are equipped with CX's regional J. Not really worth upgrading to, IMHO. CX regional J isn't comfortable. Ironically, thinking out-loud, I'd rather upgrade from Y to PEY than Y to regional J. So root for a long-haul aircraft.

You can check availability by making an Asia Miles account and checking online. Or, you can check using the KVS tool, which can search Asia Miles / MPC award inventory directly (Expert Flier cannot). A slightly more crude but generally fine way to do it is having a British Airways Avios account and checking there. Their partner inventory doesn't always have what CX has, but I find it's very close.

AA coded CX operated - pray for opup only
CX coded CX operated (your return) - can 001 stock do AM upgrade? I doubt it...

Is it possible to upgrade PE to J with Asia Miles if one is crediting to AA?

Change FFP after bookable upgrade?
 

I'll be over 1800 club points by the time I take HKG<>YVR that I used bookable upgrades to J class.

I'm also moving to LHR and will likely switch to BA. Does anyone have any experience changing FFP after using bookable upgrades?

Any brother (or sister) knows what "courtesy upgrade" means? op-up?

Situation:
Just flew CX to PEK on a 33K... Before ticketing called MPC to reset my membership year (finished the year ending Aug 16 with 1220 points... why not reset right ;)) Right after ticketing (which is actually STD - 18 hours :p) already saw my seat moved up from Y to PEY in MMB... At check-in I was told this is a "courtesy upgrade"... Therefore I don't know if this is an op-up or renewal upgrade or what...

Courtesy upgrade = op-up in CX ground staff / lounge staff / gate agent language.