Would I be subject to the $125 change fee if I changed my flight today so that I depart from LGA rather than JFK?

I have already started the AONE4.
I did a quick search on FT and in the OneWorld website, but couldn't find the answer...anything that defined city pairs and their implication on change fees.
The recording at the OneWorld desk said they open at 8AM, about 3 hours from now.
Thank you in advance.

No if you have a paper ticket open-dated from NYC. Otherwise, yes.

Moreover, it will take an additional segment (LGA-JFK) of your 16 allowed if your previous flight arrived at LGA, so it may not even be possible if you are already at the 16 limit.

No paper ticket but YIKES...I don't want to use up a segment (or purchase one) for the ground LGA-JFK! I'll just hang out at JFK for the 12 hours.
Thanks for the insight.

I'm not sure if this message will be in time to help you, but:

If you call AA (or even ask at the JFK ticket counter), they should be able to put you on "confirmed standby" for an LGA-departing flight, (for just a $50 fee, I think). While not a sure thing, asking sure beats spending 12 hours at JFK.

(which, by the way, could probably be better spent in town, if you really have that much time on your hands).

Really? So AA will override the ticket rules just for the asking?

As far as I know, confirmed standby doesn't book into the standard xONEx revenue classes, and as such, is already in a bit of a grey area. If it wasn't confirmed standby, but just a regular walk-up chance-taking standby, this would be even more the case.

Indeed, AA gains flexibility by allowing standby on earlier flights (freeing up space on the later flight), and even some revenue (in the case of confirmed standby). While it wouldn't be possible to ticket this change, to the best of my understanding, standby exists only in the reservation, whereby the valid ticket for one flight is voluntarily accepted by the airline for travel on another flight.

So in this case, it's not a case of over-riding the ticket rules, but rather, of flexibily accepting a coupon for travel. I'd be really surprised if such a request weren't granted...

Understood. It would be great to have first hand confirmation that AA will do this. It would put a fair bit of flexibility back into the xONEn tickets when flying around North America.

No way I'd try NYC on my own, especially toting a couple of backpacks (one heavy w/ a notebook -- haven't switched to the netbook yet), dealing w/ traffic and then airport security. Nice and relaxing here at the AC, which is just fine.

The AAngel at the JFK AC pro-actively offered to get me onto a LGA flight, but I do not want to take any chances w/ the AONE4.

If AA wants to take it then I'd go for it. Once you're checked in then you're sorted - no way it can come back to haunt you after that. I do recall a similar experience in the past when (entirely my own fault) I missed a flight at MIA that would have taken me MIA-ORD the ORD-EWR (I was mileage running because I had time and segments to spare) and AA quite happily put me on a MIA-JFK flight just uplifting the two coupons. Not quite the same I know (not least because it was in the days when co-terminal transfers were not an extra coupon), but AA check-in staff do seem to have quite a lot of authority to do stuff like that.

On a standby or short sell basis on domestic flights, yes. The worst thing that could happen is that it might cause problems with a future reissue. Standing by from a different airport is asking a lot though.

BA will also often do this when standing at the check-in counter with a J of F RTW ticket.