or...
you could implement a "Heathrow levy" and coax pax to use BHX, MAN, GLA, EDI or even STN and LGW. BA's policy seems to be geared to bloating LHR to unsustainable sizes by denying regional airports a decent number of connections.
I'm flying ORK-LHR-YYZ soon but wouldn't have any problem flying ORK-MAN-YYZ or ORK-BHX-YYZ !