Long Haul
Yes, remember it well LTNman - also Britannia used to operate B767s to Australia (not direct of course) for a few seasons which proved very popular. I remember it featured on ´´Wish You were Here´´ and Judith Chalmers was suitably impressed. Also in the 1970s B707s were also operated by Britannia on affinity group charters (members? of the The Luton Cat Club, etc) to Los Angeles and Hong Kong.
Monarch also operated the occasional charter to Ascension Island with B720bs. I think for the company running the radio installations there plus of course the MoD flights to Adelaide/Woomera with Britannias.