Originally Posted by
MichaelSTL
I’ve noticed the same issue into DFW. Very few connection options and half are sold out, even three weeks out. I gave up.
On this flight, C+ shows as sold out, but there are plenty of C+ seats on this leg and two “unavailable” on the connection. Don’t get it.
The seat blocking issue shown above is a different issue and covered in this thread --
Seats "unavailable" but not "occupied"
It's not really related to the married inventory availability issue that OP is talking about (seat selection availability is not the same thing as fare bucket availability). Generally when encountering the seat blocking issue, people find the seats are actually still open for new purchases and selection. They just aren't available to people already booked on the flight.