Originally Posted by
gtownguy
From what I've been able to find, the minimum connecting time at YUL from an international flight to a Canadian flight is, in fact, 60 minutes.
Correct. Every airport has published 'legal' connection times and the CRS will not allow an itinerary in violation of the minimum.
Nothing to do with BA. It's true that some of these times are optimistic (at best) and don't seem to be updated to keep pace with reality. Suggest you complain to ICAO; they are the ones responsible or not as the case may be.