I have flown Qatar to Edinburgh from Bangkok (via Doha) 4 times in the last couple of years and on Business found them to be outstanding. They do many email promotions, although the variance between the prices "from THB X" are usually all much higher". Fair enough. Now I find flights are not even available for a few randomly chosen dates in September and October. Such a shame. I can't bear the thought of having to go back to BA

Are other newly converted Qatar-ites also finding the schedules full?

If no availability on Qatar have you considered Etihad as an alternative for the flight to Edinburgh?

Try EMIRATES

I was just checking Etihad after I wrote my OP, and yes, Emirates was on the radar. Thanks.