I recently looked at flights for early or mid June (a week or two ago) and when I tried to book (intra EU, economy) it was 514 euro for a R/T on my preferred dates (other dates had the same pricing).

When I tried to book, I ran into an issue so I called the PSL. After 2 hours, the booking expired and when the PSL finally got back to me, they had a €900 price for me.

The same flight is now €1598 for a single person in Y. I thankfully managed to book for €504, which I think was outrageous for a Y flight but nothing compared to the 1600 EUR they're asking now. Expertflyer still shows 9(+) in inventory. So in ~2 weeks time the price more than tripled.