Air Canada launches flight between Vancouver and Singapore from April 3. There will be 4 flights per week per each direction. It will be the longest route in Air Canada.

エア・カナダ、バンクーバー～シンガポール線を開設　同社最長路線
Air Canada launches flight between Vancouver and Singapore from April 3. There will be 4 flights per week per each direction. It will be the longest route in Air Canada.
https://www.traicy.com/posts/20240405295202/

Air flights between North America and South East Asia tend to be the longest flights. But, on the intermediate point, Hawaii is located.
So, I wonder why it's not common to launch flights between South East Asia and North America via Hawaii.