Bear with me on this one. I took a somewhat low cost business class flight ticketed on American:
LAX-PVG (American Airlines)
BKK to LAX via HKG (BKK-HKG on CX and HKG-LAX on AA)
The BKK to HKG portion is on Cathay Pacific. I currently have a 2 hour layover in HKG. However, I have a business meeting I just found out about that I really would like to attend in Hong Kong, and want to change to a layover of just under 24 hours. I have found a Cathay Pacific flight that just perfectly fits, with a layover of 23 hours.
I called American to see about changing and the change fee plus the change of fare was almost more than the cost of the original ticket
I asked about seeing if Cathay could change on their end, and the American ticket agent said it was worth a shot. Before I call Cathay I was hoping for any insight, advice, words of encouragement of caution. As always thanks to the flyer talk community.