Standard Thompson Skytours bucket and spade brigade flights Plus it was used widely for trooping the usual BAR destinations,
Hannover Gutersloh, Rhein main plus Akrotiri, Gibralter - Not widely known was that at least two of Brits 737s were QCs and
were used on Horse freighters frequently Cork, Dublin, France etc etc. Dan Airs 727s basically replaced the Comets so exisiting Comet route for them can be used - They also operated in and out of Tegel supplanting the BAC1-11s to Izmir and Istanbul.
And yes Garry BY was one of the three launch carriers for the 200

Some nice colour scheme variants there
If you want some more eclectic routes for Britannia I'll ask Mrs H - she did run George Beresfords office for him

Leif