Originally Posted by Gardyloo
... So the 2 segments involving London are CAI-LHR and LHR-DXB. Spain (MAD-DME-MAD) isn't mentioned.
Or I could be wrong - that would be a first.
No, not wrong, just a misunderstanding on my part. When I saw MAD/LHR (one slash) I took it to mean MAD
or LHR, now I see you meant it as MAD//LHR (two slashes, for a surface segment). Sorry.