So I'm trying to secure business class tickets from Shanghai PVG to Toronto YYZ for next June. I know it's a little early since not all tickets are released. BUT, I have some miles that are expiring (end of July) - not too many - about 4000.

What are the chances that I'll even get those tickets if I'm waitlisted within the next month? :S Trying to decide if I should use my miles for something else..