Hi folks. In some other threads, I've seen that people have been able to find out how many seats are remaining in a certain class for a certain flight (for example, SK 901 still has 3 seats in Y as of today, etc etc).

How do you guys find this out?

Is there a website I can check to get this info for SAS? What about other airlines? I'd love to be able to find out how full or empty a flight will be before I get on it or before I reserve tickets.

Thanks in advance for any help.