I confer. All Asian travel agencies belong to a network (Chinese Travel Agents Association) that sets fares amongst themselves so as to prevent a fare war breaking out between fellow agencies.

UA/NW/CO/AA generally have the lowest fares to Asia from Canada because it requires many changes of aircrafts and transits through USA.

There are other consolidators that also sell fares on other European airlines to destinations in Europe. eg BA, LH, AZ, SK (via USA), AF, KL. ANY travel agent generally would know where to go find the fares you want.

There are even fares for travel within USA, from Canada to USA or vice versa that can be booked instantly and yet be priced as though you have a 7 day advance booking or a Saturday overnight stay.

Try doing that on an airline website or a travel website!