When might C upgrade space open on BOS-EZE
 

I've been keeping an eye on C space for BOS-JFK-EZE or BOS-MIA-EZE for months now for the second half of June, and it is literally 0 on every flight. Are the days of upgrades on this route gone, is it simply too early since it's still about 4-5 months out and I need to wait? I'm unsure if it's about the route or the timing or something else

Generally speaking, AA releases very, very little C space in advance on most all long-haul routes across the system. If space is still available it will most likely clear in the week before the flight (with a high probability around T-36 to T-24 hrs out).

https://www.flyertalk.com/forum/amer...er-thread.html

I have a LAX-PVG flight in march with 80% of the cabin wide open. Still no dice.

Expect I'll clear (or hope), but it won't be until much closer till departure.

I would think the PVG flights are even worse now that ORD is no longer an option.