As a heads up, the new direct flight from Vancouver to Bangkok is listed as 15 hours and 50 minutes flying time. Personally, I would only fly this on an upgrade to Premium Economy.
TLDR : Answer Summary
The new direct flight from Vancouver (YVR) to Bangkok (BKK) reportedly has a flying time of 15 hours and 50 minutes, operated by Air Canada starting in December. Travelers discuss pros and cons, including preferences for Premium Economy and potential exhaustion from late-night departures. Some express concerns about long travel times with layovers, while others share their experiences with alternative routes and airline choices.