Hello. I am looking at itinerary options from IAH to IST. On the app, only LHR connection s are listed. But, on a multicity itinerary, I am able to find connections via CMN: the app displays such connections as 2 separate awards. Off-peak economy at 22.5K plus 12.5K. As Morocco and Turkey are both classified as "Europe" is there a logical rationsle for not allowing a connection in CMN rather than only in LHR?

Finally, on an AADVANTAGE award off-peak ticket what is the checked allowance on IAH -IST? Any additional allowance for OW Ruby holders?

Thanks