FlyerTalk Evangelist and Ambassador: The British Airways Club
Join Date: Jun 2008
Location: Somewhere between 0 and 13,000 metres high
Programs: AF/KL Life Plat, BA GGL+GfL, ALL Diam, Hilton Diam, Marriott Gold, blablablah, etc
Posts: 33,193
I have had both B gates and bus gate departures for domestic flights in the past. Whilst the vast majority of domestics go from A1-A7, in effect, I think it is technically only arrivals which "have" to use those gates (and I have had some bus gates for those too).