Do you mean board those in the last 5 rows first, then the 5 in front of that, then the next 5, etc. That is what many airlines do/used to do, but after F and elite's boarded. Now they do it by zone, but that's a combination of back and window seats which, if you think through it, is even more efficient.

So what you're suggesting is how they do it. I'm sure you're not suggesting on doing aways with elite pre-board in advance of the back-to-front. That's grounds for expulsion from FT.


Or are you talking about physically rolling a jetway to the back of the plane? I don't think going from the back would be much better, and I don't know if many jetways even reach that far. Some major international airports and big planes do have multiple jetways and can do front, mid, back door loading at the same time.