Here are a few flights that I am glad I took while it was still possible :-
1984 British Airways Trident Heathrow – Manchester and return
1985 Olympic 707 Rhodes – Athens
1986 CTA Caravelle Gatwick – Zurich and return
1986 British Midland Viscount 1hr pleasure flight from East Midlands
1986 Euroair Herald 1hr pleasure flight from Gatwick , including taking part in the Badminton Airday airshow !
I do regret not starting my interest in aviation early enough to fly in a Comet or a VC10 , though.