I flew Dundee-Amsterdam on Friday - my first flight from Dundee.
The flight was pretty much full, there were 3 empty seats up the front, full at the back. I booked about a month in advance, and paid £40, so yields might not be that high.
There were a group of 4 football fans connecting onwards to Italy to watch Scotland, and I overheard a few couples saying they were heading to Amsterdam for the long weekend, returning Monday.
The "departures" area was mobbed, there were not enough seats, and barely enough room for standing too. It seems a Dash8 is a little too much aircraft for Dundee.