You might find a £69 return to EDI or other places at
http://www.britishairways.com/wofferseurope/destband0/
depends how flexible your plans are.
The budget airlines could leave you with a problem as if something goes wrong they will not do anything for you - check elsewhere for comments relating to Ryanair.
Also the STN-LGW transfer could easily go wrong as both the road and rail network in the area are under considerable stain.
PS June 3rd is a public holiday here .. see
http://www.thequeensjubilee.com/ All rail and coach services are likely to be on a Sunday schedule.
[This message has been edited by TonySymons (edited 04-22-2002).]