Originally Posted by
seenitall
The seating chart for a flight more than a month away is not going to be especially accurate.
I'd put it differently. The seating chart is very accurate. If you bought a ticket, and you see unassigned seats, you can grab that seat.
However, the seating chart only reflects who has actually chosen a seat versus those who have a ticket in the cabin and haven't chosen a seat and doesn't reality for knowing upgrade odds.