What would be the cheapest return flight I could do in first from LHR?

All I want is CCR access, for a few hours without asking for guesting,
Prob a weekend return,

You can factor In if you think a place is worth an extra tenner for somewhere nicer, but hopefully not more than a few hundred if that's poss

I aiwait with baited breathe your suggestions or ridicule,

And of course those asking thr why and wherefore .