Originally Posted by
unfrequentflyer
Your 12 hours is just for domestic, right? I have done over 12 hours on a overnight layover at HKG
No, for AA it's 12 hours domestic or international. I can't remember if it's 11:59 or 12:00, but it's a computer limitation and has been that way for several years. If you were able to check for a greater than 12 hour layover, then most likely it was an agent override.