Originally Posted by
OSSYULYYZ
Can I ask what tool you used? I used ExpertFlyer, and it told me that 3 Premium Seats were still available. The Switch Seat Tool told me there was only 1. I got my suspicions based on the discrepancy and the fact that it is longer on Google Flights.
The seat map, whether viewed on ExpertFlyer or AA.com will typically NOT give you any useful indication about whether a flight is full/overbooked.
You can tell if a flight is full on ExpertFlyer using
Flight Availability — J0 Y0 will tell you AA is not selling any more seats. The flight is full, and it
may be overbooked, but there’s no way to know for sure of the latter without asking AA.
That said, even with Y>0, it’s possible the flight is full/overbooked.