Maybe AMS and FRA and HEL should be on the list
I just put /ETC at the end of my list as lets face it, no matter how long the journey, the lust of 1 stop options is quite extensive, and even more so if some brave soul tries to make their own routing, such as MAN-VIE on Jet2 and then VIE-PEK on Air China.
Via HEL is almost 200 mi. shorter than LHR
The connections to China and Japan is the only reason Finnair serve Manchester at all.
Do you mean a MAN as a "tag-on" such as SIN-MUC-MAN?
Again it's a question of fares
Yes I do mean like that and the whole point I was eluding to was indeed about fares and Yield.....