Yes, it is possible to travel with large sums of cash on a private jet. This is a common practice for many private jet clients. For instance, members of royal families often fly with millions of dollars in cash on their person.
You are allowed to travel with up to $5 million in cash, provided you declare this amount when passing through customs. For domestic flights, there are no limits and no requirement to declare the cash.
Is there a fee for bringing a large sum of cash through customs?
No, there are no additional fees for carrying a large sum of cash. You simply need to declare the amount when passing through customs, and it won’t be an issue.