Originally Posted by
ajGoes
2) This thread tells me that K inventory is typically released at T–24 and again at T–3. I've been watching LAX-CDG options for the last few days, and I keep seeing K9 at those times on itineraries changing at eastern airports, but K has never opened on flights changing at SFO. Is SFO an exception to the trend, or does this just mean that the flights I've looked at have been exceptionally full? I've just taken a closer look at today's flights and noticed Y7, V6, and the like, so I think the "exceptionally full" hypothesis is a good one.
UA no longer routinely levels all booking classes — and, even when it did, it didn’t necessarily apply to connecting flights. You can not necessarily count on having K space available on any given flight.