去英國機票

Yes, of course you can book this ticket. HK- London - Edinburgh - London - Hong Kong
You can contact British Airways by visiting their website www.ba.com to have further information. Ticket price will be around HK$5500.00 (Tax excluded) or HK$8500.00 (Tax included) -- Crazy HK$3000 for tax and fuel surcharges
Or you can simply contact any travel agents in HK, they can arrange booking as well.
When you book the ticket, please ask the agent clearly that you want to "stop over" in London !!

HKG(1.Oct)-LHR -EDI(2.oct)-LHR(7.oct)-HKG(22.cot).return fare with www.ba.com incl.taxes. HK$8820.

or

HKG-LHR-HKG HK$ 7405

LGW-EDI-LGW with www.easyjet.com HK$ 900