Owning vs. charter vs. airlines

There is usually a point where it is cheaper to do it yourself than have
someone else do it for you. What I'm wondering is what would that point be
when it comes to trans-world air travel. When does buying your own jet and
employing your own pilots make economic sense than using an airline? Or
will the airlines always be cheaper?

More specifically, let's say you have a number of employees in Fiji. Each
gets four round-trip flights to anywhere in the world each year as part of
their benefit package. Most will want to use at least one of those for the
Christmas season to spend the holidays with family. There would also be an
expected heavier usage of their flight options during the summer. The
question I have is: How many employees would one need to have where buying a
private jet and employing pilots would make economic sense? Would there
also be a span between these two options where chartering a private jet
would make economic sense?

Scott Jensen
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