I know two billionaires quite well and have travelled with them on some short trips. They started their own companies from scratch, all their wealth is self-made. They both live in Europe.
- Both of them fly extensively in their private jets, even on very short hops e.g. London for a lunch and then back home. One of them also flies long-haul to Asia in his jet, the other prefers Singapore Airlines First as he travels with his wife and three kids (all in F).
- One of them flies to Maldives in his jet while his >100mm Yacht with a crew of 20ppl already is waiting for him there for a few days of cruising around. He spends about 3 months per year on his yacht. His business partners have to fly to wherever his boat is for business meetings.
- They often stay at their friends houses or yachts when traveling
- In terms of hotels both of them like Aman a lot