My old boss, who is far wealther than me and has a £9m house in Hampstead, flies Y on easyJet when he goes skiing.

There genuinely is no major correlation between wealth and flying F. Obviously if you dont have £10k you won't be spending £10k on a flight but even if you have £5m in the bank then £20k to take your family in F is still too much of your capital for most.