Originally Posted by
LarryJ
The interior width is 6.8" greater on the A320 vs. B737 based on the numbers published by the manufacturers. Not quite 10 inches but certainly enough to notice.
10" seems to be an arithmetic error on my part, although I was comparing exterior dimensions; the exterior difference seems to be slightly greater (around 8"/0.2M.)
Regardless, the seat width difference is just enough to be noticable, although seat choices can make a noticeable difference as well -- e.g. try flying an older pmUS 737 and one of the newer American ones back to back.