Original Member and FlyerTalk Evangelist
Join Date: May 1998
Location: Kansas City, MO, USA
Programs: DL PM/MM, AA ExPlat, Hyatt Glob, HH Dia, National ECE, Hertz PC
Posts: 16,619
Boarding through the middle door is common practice with 757's for Delta, I don't about United though ...
It really speeds things up I think, especially unloading.