This

was a few weeks ago for a flight this month, in economy. So yea, slightly overpriced. Swiss iirc did this journey for 300 euro. I ended up booking for a third of this price with KL on the way out, and AF on the way back, with a 4 and 7 hour layover respectively, as anything good (and not operated by DAT) was easily close to 1k or more, with my flights of preference, the above, being 1600.
I booked the same itinerary yesterday for the second half of September at about 400 euro.