I've been tracking AA215 (LAX-GRU) for a few weeks now as I'll be on this flight in a week. It's seemingly delayed more than it's on time.

What's interesting is when I track the travel of the specific aircraft, the delays seem to get worse. While there's no tolerance built into the scheduling as it seems the plane is operating continuous turns, they don't seem to be able to make up any time.

As an example, a 1:45 delay on arrival somehow turned into a 2:45 delay on departure. If they schedule the aircraft with no slack in the system, how can they expect to not have this snowball out of control?