How to fly with large amounts of cash

A carry-on bag with a very large amount of U.S. currency
Not your typical carry-on bag

In the US, it is completely legal to fly with large amounts of cash. However, if you don’t pay attention to some basic rules, you could easily lose some or all of your money. This is true if you are traveling with US currency, currency from other nations, or other monetary instruments like traveler's checks, and money orders. You should take common sense steps to protect yourself from unwanted attention, but you should also…