You’ll need to narrow down the options a bit more. Which part of the world? What kind of plane, i.e. how many seats, what kind of range is needed, etc.? Add some details and you’ll get more useful answers. Or you can check out as a starting point.
You can get all of the information you need at they are a charter broker. I know the only deal with gold and platinum ARG/US rated operators.
Define “reasonable”…
Yeah, we may need more details in order to give you the information you seek. In the meantime I would recommend calling a company like Executive Jet Management who is a jet charter company. Executive Jet Management has experience, they have been in the industry for almost 45 years and will have the answers to your questions.
Define “safe”…..