To get a clean departure from Heathrow, get there two hours early and check flight screens intently for gate announcements to prevent past-minute rushes. In general not good knowledge with BA. I used to fly BA decades in the past continuously, pretty let down by the whole experience, seats had https://medium.com/@BusinessClassFlight/top-benefits-of-connecting-with-a-travel-agency-book-flight-ticket-tour-packages-c38526a1c2eb