Originally Posted by christep
Or LHR-CAI-LHR... I don't see any rule that requires the two segments in the underlying ticket to be on the same ticket.
You specified ex-CAI originally, so I would think you might mean CAI-LHR-LHR.
I haven't tried that yet. Upgrading oneway at the start of a RTW and ending with the return sector. I don't know if Asiamiles will accept that kind of return. Has anyone tried?