Largest unserved Canadian routes to some of the main Asian hubs:
rolling 12 month O&D numbers
PEK-YOW 25,850 (13th largest unserved route from PEK)
YUL-HKG 34,782 (10th largest unserved market from HKG)
YYC-HKG 41,814 (5th largest unserved market from HKG)
SIN-YVR 39,790 (5th largest unserved market from SIN)
SIN-YYZ 40,841 (4th largest unserve market from SIN)
ICN-YYC 34,950 (12th largest unserved market from ICN)
BKK-YVR 59,820 (14th largest unserved market from BKK)
DEL-YYC 55,154 (9th largest unserved market from DEL)
DEL-YEG 42,050 (14th largest unserved market from DEL)
https://www.anna.aero/2019/03/06/100-routes-asias-top-10-airports-non-stop-service/