(Apologies I was thinking in terms of a trip specific to BAe Hatfield employees)
The only BAe staff specific flights I remember was by BAe146, I flew to Southend on mine (Debonair if memory serves me right). I also flew a few times to Chester in the Jetsteam and 125.
I distinctly remember the Concorde visit to Hatfield and it didn't land but did set off quite a few car alarms. Those were the days.