Living 'up North', we have no direct flights to BKK. I travel Premium Economy and prior to Covid I was paying Cathay around £1300 for MAN-HKG-CNX-HKG-MAN. This year, for the same dates, they want £5200. Last year, for £1450, I flew MAN-CDG-BKK-CDG-MAN with Air France. Now AF are asking £3880 for the same dates. Consequently, in 2023, I'm flying EVA, MAN-LHR-BKK-CNX and BKK-AMS-MAN for £1955. (Open Jaw - I guess that the return via AMS was convenient for them and I wanted to spend a few days in Bangkok on the way back.)
When I flew in 2021, AF wanted £990 and the 777 with 381 seats had only 40 passengers, but I was told that this was more than on the previous flight. Of course, ASQ added to the cost.