Other UK charter flights from STN in the 80's were with Orion 732, British Airtours Tristar,
There were Spanish ones - Caravelles of Transeuropa then Hispania - who also went into SEN.
Do not recall any series of Aviaco or Spantax charters coming in as they usually went to LTN LGW and BHX.
Yugoslavia charters were flown in and out by Inex Adria DC-9, and Aviogenex TU-134, 727
Pula, Split. Dubrovnik
Air UK Leisure based at STN was new to the IT market in 1988, first with leased 732's then new 734's,
replaced much later in 1996 by an Airbus fleet and the Company was bought by Unijet.
Never seen any Mayflys' for STN on here - Plenty of old LTN ones on their thread.