What You Cannot Bring on Flights
The TSA maintains a comprehensive list of prohibited items that cannot be brought in carry-on or checked baggage. Some items are prohibited entirely; others are restricted to checked baggage. Understanding these rules prevents delays and confiscation at security checkpoints.
Weapons and Tools (Prohibited in Carry-On)
All knives are prohibited in carry-on. Butter knives and round-bladed table knives can sometimes fly, but enforcement varies. Pack all knives in checked baggage.
Firearms are prohibited in carry-on and checked baggage for most travelers. Licensed firearm owners can transport firearms in checked baggage with proper declaration to the airline. Ammunition is strictly prohibited in carry-on.
Large tools are prohibited in carry-on. Hand tools longer than 7 inches are prohibited. These must go in checked baggage or be left behind.
Nunchucks, batons, brass knuckles, and throwing stars are prohibited. Martial arts belts or uniforms (without weapons) are fine.
Mace, pepper spray, and tear gas are prohibited in carry-on. One equipped self-defense spray can be packed in checked baggage if it's equipped with a safety mechanism to prevent accidental discharge.
Personal security alarms that emit loud noises are allowed in carry-on luggage. They provide security without violating TSA rules.
Flammables and Hazardous Materials
Lighters with fuel are prohibited in carry-on and checked baggage. Even empty lighters are typically prohibited. Electronic lighters may be allowed; check with your airline.
Strike-anywhere matches and flares are prohibited. Safety matches may be allowed in limited quantities in carry-on; check with TSA agents before boarding.
All explosive devices and materials are completely prohibited in carry-on and checked baggage.
Gasoline, diesel, paint thinner, and turpentine are prohibited. These are checked at the hazmat level.
Sporting Equipment (Carry-On Restrictions)
Sports bats are prohibited in carry-on. They must be packed in checked baggage. Hockey sticks, ski poles, and golf clubs also go in checked bags.
All firearms and realistic replica firearms are prohibited in carry-on. Some can be checked with proper handling.
Most sporting equipment can fly in checked baggage. Pack bats, clubs, and sticks with care to prevent damage. Airlines may charge sporting equipment fees ($50-150 per item).
Electronics and Batteries
Power banks over 160 watt-hours are prohibited in carry-on and checked baggage. Spare lithium batteries over 160 Wh cannot fly.
E-cigarettes, vaping pens, and vaping devices are allowed in carry-on only. They're prohibited in checked baggage due to fire risk.
Prohibited for Safety Reasons
Compressed air dusters, aerosol cans (except personal hygiene items and toiletries), and pressurized containers are restricted.
Camp stoves with fuel, lighter cartridges, and fuel for outdoor cooking are prohibited in both carry-on and checked baggage.
What About International Travel?
International flights departing from the U.S. follow TSA rules. However, destination countries may have stricter rules. Research your destination country's security regulations before traveling. Some countries prohibit items that TSA allows (like certain types of knives that are legal in the U.S. but prohibited in Europe).
What Happens If You Pack a Prohibited Item?
If you reach TSA security with a prohibited item:
- TSA will confiscate it: Prohibited items will be taken and not returned
- You may face fines: TSA can fine travelers who bring prohibited items. Fines range from $1,500 to $10,000+ for repeated violations
- Law enforcement may be called: For weapons and dangerous items, law enforcement may get involved
- Your flight may be delayed: Confiscation takes time and can make you late for your flight
TSA's Online Search Tool
If you're uncertain whether an item is allowed, use TSA's "Am I Allowed?" search tool on their website. You can search any item and get instant guidance on carry-on and checked baggage status.
Items Often Mistakenly Prohibited
Safety scissors and scissors under 4 inches can fly in carry-on. Larger sewing scissors must go in checked baggage.
Electric razors are allowed. Disposable razors are allowed. Razor blades are prohibited in carry-on but allowed in checked baggage.
Canned foods fly in carry-on. TSA agents may inspect them, but they're generally allowed.
FAQ: Prohibited Items Questions
Q: Can I bring a multi-tool with a small blade in my carry-on? A: No, any multi-tool with a blade is prohibited in carry-on. Pack it in checked baggage or leave it behind.
Q: Are cuticle scissors allowed? A: Yes, small safety scissors under 4 inches are allowed in carry-on.
Q: Can I bring my golf clubs through TSA? A: Golf clubs must go in checked baggage. They're prohibited in carry-on.
Q: What about my vaping pen? A: Vaping devices can fly in carry-on only, never in checked baggage. Pack them with your personal items.
Q: Are battery-powered tools allowed? A: Small battery-powered tools (nail clippers with batteries) might be allowed, but larger tools are prohibited. Check TSA's tool rules when uncertain.