Its harder to see with TUI most other Airlines allow you to see the seat plan for flights without booking and you can get a feel for passenger loads. I’m flying out to ACE from MAN in January but I’m not holding my breath, I can see my seat plan for both sectors and it’s not looking good at all, when I got to the date I could book my seats on the Aircraft I counted 107 booked seats on my outbound and 124 on my return but looking over the past week that has dropped to around 50 and 80 respectively.
im not saying this is only a TUI issue as I know people are changing their plans and postponing their holidays until later in the year.