As per 11APR13 GDS timetable and inventory display, KLM plans to operate 6 weekly Amsterdam – Calgary service, for entire Winter 2013/14 season. This route in Winter 2012/13 season operates 5 weekly.
KL677 AMS1240 – 1355YYC 332 x3
KL678 YYC1540 – 0830+1AMS 332 x3
Further changes for Winter 2013/14 schedule, effective 27OCT13, remains highly possible.