Its actually not quite that simple for long distance flying. Most private jets are not G650ERs which have a good long range and can fly a route that an airline might use a 777 or A350 for. The G650 sleeps 10 so you probably wouldn't want more than that for a long hall flight. And I mean if someone was going to let me fly a 650 for the same price as international business I would do it. Figure operating a long range jet runs about $5K per hour exclusive of actually buying and financing the plane. So the flight I am going to take in a couple of months would be roughly $65000 in variable costs.

Even at making 10K per hour ($20M per year) its going to get quite pricey to fly a long range private jet.

https://www.aopa.org/news-and-media/all-news/2015/november/1...