Pocket Knife 🇺🇸 United States
Legal to bring; TSA prohibits in carry-on
Can I bring Pocket Knife into United States?
Legal to bring; TSA prohibits in carry-on
Within personal allowance — no separate declaration needed
Full details
Pocket knives are legal to own and carry in most US states. However, TSA prohibits all knives in carry-on luggage — they must be in checked bags. State and local knife laws vary significantly — some cities restrict blade length, locking mechanisms, or concealed carry of knives.
Legal to bring in checked luggage only. TSA will confiscate from carry-on. Check destination state/city knife laws.
TSA prohibited items list, state knife laws
This page covers destination customs rules in United States. Whether you can carry pocket knife through security, in carry-on, or in checked baggage depends on airline and screening rules — see air travel rules.
Related rules
Pocket Knife rules in other countries
Pocket Knife
🇬🇧 United Kingdom
Folding blades under 3 inches permitted in public. Locking knives and longer blades restricted.
Pocket Knife
🇦🇺 Australia
Non-locking folding knives generally permitted
Pocket Knife
🇯🇵 Japan
Blades over 6cm prohibited under Firearms and Swords Control Law
Pocket Knife
🇸🇬 Singapore
Offensive weapons prohibited under Arms & Explosives Act
Pocket Knife
🇦🇪 United Arab Emirates
Bladed weapons prohibited under Federal Penal Code
Pocket Knife
🇨🇦 Canada
Pocket Knife import prohibited