So how much cash can you fly with? You can fly with any amount of cash. No law prohibits you from bringing any amount of money on a flight. Likewise, TSA has no rules that limit how much money you can bring through security. In other words, TSA has no cash limit per person.
六千多应该还可以吧？
六千多没事，最好也不要放在明晃晃的地方
我带了一万多都没事，所以你放心吧，不过我的钱都是合法所得报税的
美国人的逻辑，除了非法交易，没有理由带那么多现金。
超过一万要申报