Originally Posted by
whistler814
Looking at 18JUL UA108 IAD-MUC it appears E+ is sold out already but E- isn’t. Is this accurate or some kind of glitch or pending aircraft swap?
The inventory and seat map both show zero E+ seats available. The seat map is showing the low-J configuration; if they swap to the high-J, that'd open up more E+ seats, so there's no need to block any for that reason. I suspect the seats are occupied.