Have you tried ITA matrix or google flights, they show the same J fares as CX.com would show, although this may not be true for Y or Y+
Are the prices on ITA matrix accurate? I was looking at some ex-ARN I class tickets but neither London nor HK ticketing is able to price the tickets in I class.
How do people book ex-ARN/OSL tickets given there are no ticketing offices in those countries? London ticketing office was able to price C-class fare for ARN-LHR-HKG outbound and I-class inbound, where ARN-LHR is with British Airways. When I asked for ARN-DOS-HKG, where ARN-DOS is with Air Berlin, they somehow outright refused to price saying since Air Berlin is the first carrier I should contact Air Berlin to price/issue the ticket instead. If that is the case how come they were able to price (and issue) ARN-LHR-HKG tickets? CX doesn't seem to do codeshare on both occassions.