Thank you to the cabin for all your info / suggestions. Mrs Mac is on Lufty, however due to work commitments I have to fly out to Dubai with EK for a few days before our trip, so I have arranged to go with EK via Rio to BA and then onwards with LAN to Santiago. I will have to come back the same way as well, as I am needed back in DXB a couple of days after I would have returned to the UK, so have moved things around to arrange earlier meeting. I must admit it is quite a bit of flying though especially the return 21.30 out of BA and 22.50 into DXB !.
Regards
Mr Mac