Don't get me started on the concept of Sugar Daddies. Genuine ones are rarer than unicorns. They are wankers punters in 'disguise' who don't want to admit to paying for sex and in my limited, unfortunate contact with some (before I saw sense and did this) they are the most entitled, full of shit individuals I've ever come across. They play on your greed (not saying you are greedy OP) and dangle carrots of wonderful treats and cash that never ever materialise. It is all bullshit.
And no man, SD, punter or otherwise is going to want to shell out a ton on a holiday with a woman he's never met. Ever. Aside from being entitled pricks, they are super super picky and fussy who they meet. A genuine SD would most likely be too busy for back and forth messages and would surely want a short, paid meet for coffee or lunch before anything else happened. This would be arranged quickly so they knew fast if you were worth pursuing.
In some ways it's very different to the escort - punter relationship. But in some, it's just the same. In reality though, punters exist!
OP, I would cut contact right now and move on. This is a complete waste of your time and energy.