Cost of flight via Frankfurt vs LHR
Just curious more then anything, why does it cost exorbitantly higher to fly SIA from Heathrow to Singapore (Preferred route) then by booking via Lufthansa to fly from LHR to Frankfurt then onto Singapore on SIA. We are not talking a small amount either, as an example we wanted to book the Suites from LHR and were looking at £22k - £23k for two return but can book suites out of Frankfurt with Business class on Lufthansa for the short hop for £10,088.00?
I know it costs more to fly out the UK but this amount!