Originally Posted by
demkr
But why does their inventory management system not release R inventory maybe one or two when only 6 bookings have occurred in J on this flight in the last 6 months?
Because they know that most bookings come in the last six weeks before a flight (particularly business routes like SFO-LHR). I've seen many flights out of SFO with only a handful of seats taken two months out that go out full with what I suspect are very few upgrades.