So according to the threads, CAI is now no good for cheap fares

IST is a security hazard

and someone suggested Iraq (uhmm - which makes IST???)
Want two 4 continent (EUR-ASIA-AUS-NA) tickets starting December. Am London based at the moment & will be in Stockholm & Toulouse before then for sure.
Have 75k miles and voucher for two outbound flights to get the tickets so could go most places to collect
So where's the best deal
Thanks
David