You have the right to travel with as much money as you want. However, during international travel, you need to report currency and monetary instruments in excess of $10,000.
How much do you have to declare when returning to us?
In most cases, travelers are permitted to bring up to $800 worth of merchandise back to the United States without having to pay duty. (Numerous exceptions apply.) Keep in mind that only one liter of alcohol, 200 cigarettes, and 100 cigars may be included in this exemption.
What happens if you fly with more than 10000 dollars?
How Much Cash Can You Fly With? If you are traveling on an international flight and have more than $10,000 in your possession, you must disclose the amount of U.S. Currency in your possession on a FinCEN 105 form. On a domestic flight, no rule requires you to disclose carrying $10,000 or more on the flight.