Flu jabs around here will be on Saturdays and Sundays in October, at the local GP's surgery, on a (pre-booked) 'walk through' basis. Many people won't know about it though, as the only publicity I've seen for it has been on a council noticeboard that most people don't bother reading anyway.
I've not decided yet whether to get a jab myself. I've never bothered up until now but, as it could take up to 6 months for my immune system to recover after my final chemo session this coming week, I might possibly go for it this year.