Checked luggage allows most items that carry-on does not, but some things are still banned outright

Checked bags have fewer restrictions than carry-on because they stay in the cargo hold, away from the cockpit. You can pack most liquids, gels, and powders in checked luggage without the 3.1-ounce limit that applies to carry-on bags. You can also bring tools, certain sports equipment, and items the TSA prohibits in the cabin. The main rule: nothing that poses a fire risk or is outright illegal.

What you cannot bring in checked luggage — ever — includes explosives, flammables, and certain batteries. Some items are banned from both checked and carry-on bags. Others are allowed checked but not carry-on. Understanding which category your item falls into saves you from repacking at the airport or losing something at security.

Key Takeaways

  • Liquids, gels, and powders over 3.1 ounces are allowed in checked bags but must follow TSA Hazmat rules for certain substances like alcohol and paint thinner.
  • Tools like screwdrivers, hammers, and wrenches are allowed in checked luggage but prohibited in carry-on bags.
  • Lithium batteries and certain rechargeable devices have strict limits or are banned entirely from checked bags because they pose fire risks in cargo holds.
  • Firearms, ammunition, and explosives require advance notice to your airline and must be declared and packed according to specific TSA protocols.
  • Medications, toiletries, and food are generally allowed in checked bags without the liquid restrictions that explore to carry-on.

Liquids, gels, and powders: what the 3.1-ounce rule does not explore to

The TSA's 3.1-ounce limit applies only to carry-on bags. In checked luggage, you can pack full-size bottles of shampoo, conditioner, lotion, toothpaste, and other toiletries. You can also bring larger quantities of makeup, sunscreen, and hair products. The only catch: some liquids and gels are classified as hazardous materials and have their own rules.

Alcohol over 70 percent ABV (alcohol by volume) is banned from checked bags entirely. Alcohol between 24 and 70 percent ABV — most spirits, wine, and beer — is allowed but limited to 5 liters per passenger. Paint thinner, acetone, and other solvents are prohibited. Aerosol cans are allowed in checked bags only if they are equipped with safety caps to prevent accidental discharge. Check with your airline before packing aerosols, because some carriers have stricter rules than the TSA.

Tools and equipment: allowed checked, prohibited carry-on

Screwdrivers, hammers, wrenches, pliers, and saws are all allowed in checked luggage. Drills and power tools are permitted as long as the battery is removed or disconnected. Axes, hatchets, and ice picks are banned from both checked and carry-on bags. Knives of any length are prohibited in carry-on but allowed in checked bags if they are sheathed or wrapped so they cannot cause injury.

Sporting equipment like baseball bats, golf clubs, and ski poles can go in checked bags. Firearms and ammunition require advance notice to your airline and must be unloaded, locked in a hard-sided container, and declared to the airline at check-in. Explosives, flares, and fireworks are never allowed. If you are unsure whether a specific tool is permitted, contact your airline before you arrive at the airport.

Batteries and electronics: lithium restrictions in checked bags

Lithium batteries pose a fire risk in cargo holds, so the TSA restricts them heavily. Spare lithium batteries — including those for phones, laptops, and cameras — are prohibited in checked bags. You must carry them in your carry-on bag instead. Devices with non-removable lithium batteries, like smartphones and tablets, are allowed in checked bags, but the TSA recommends keeping them in carry-on to reduce fire risk.

Laptops, e-readers, and other electronics with built-in batteries can go in checked luggage, but airlines often recommend against it because damage is more likely. Alkaline batteries (AA, AAA, C, D, 9V) are allowed in both checked and carry-on bags. If you are traveling with expensive electronics, keep them in your carry-on where you can monitor them and reduce the chance of theft or damage.

Medications and medical devices: generally unrestricted

Prescription medications in their original labeled containers are allowed in checked bags without quantity limits. Over-the-counter medications like ibuprofen, acetaminophen, and cold medicine are also permitted. Inhalers, EpiPens, and other medical devices are allowed in both checked and carry-on bags. Syringes are permitted if they are accompanied by medication or a doctor's letter explaining their medical purpose.

Liquid medications like cough syrup and insulin are allowed in checked bags in quantities larger than 3.1 ounces. If you are traveling with a large quantity of medication, keep a copy of your prescription or a doctor's letter in case you are asked to explain it. Frozen gel packs used to keep medications cool are allowed in checked bags as long as they are completely frozen solid at the time of packing.

Food and perishables: solid food is allowed, liquids are not

Solid foods like sandwiches, fruit, cheese, and baked goods are allowed in checked bags. Peanut butter, jam, honey, and other spreads are classified as liquids or gels and must follow the hazmat rules for checked bags — they are allowed but should be packed carefully to avoid leaks. Meat, seafood, and other perishables are allowed if they are solid and properly wrapped, but they may spoil during travel.

Soups, sauces, yogurt, and other liquid or gel foods are allowed in checked bags without the 3.1-ounce limit, but they must be packed in leak-proof containers. Frozen foods are allowed if they are completely frozen solid when you pack them, though they will likely thaw during the flight. Pack perishables in the center of your bag, surrounded by other items for insulation, and consider using a small cooler or insulated bag if you are traveling a long distance.

Items banned from both checked and carry-on bags

Explosives, flares, and fireworks are never allowed. This includes firecrackers, sparklers, and any item designed to ignite or explode. Compressed gas cylinders — including propane, butane, and oxygen — are prohibited. Certain pesticides and poisons are banned. Radioactive materials and biological hazards are not permitted. Realistic replicas of explosives or weapons are also prohibited because they can be mistaken for the real thing.

Corrosive substances like sulfuric acid and sodium hydroxide are banned. Oxidizers and peroxides are prohibited. If you are unsure whether an item is banned, check the TSA website or contact your airline. Some items that seem harmless — like certain types of camping fuel or self-inflating life jackets — are actually prohibited. When in doubt, leave it at home or ship it separately.

Packing tips to avoid damage and delays

Pack liquids and gels in the center of your bag, surrounded by clothing and other soft items to absorb leaks. Use plastic bags or containers with tight-fitting lids to contain spills. Wrap fragile items in clothing or bubble wrap. Place heavier items at the bottom of the bag and lighter items on top to prevent crushing.

If you are packing anything that might be questioned — medications, tools, or items that look unusual — keep receipts or documentation in an straightforward-to-reach pocket. Declare firearms and ammunition to your airline at check-in, not at security. Arrive early on travel day so you have time to repack if the TSA or your airline asks you to move something. Check your airline's specific baggage rules, because some carriers have restrictions beyond what the TSA requires.

Frequently Asked Questions

Can I pack a lighter or matches in checked luggage?

No. Lighters and matches are prohibited in both checked and carry-on bags because they are fire hazards. This includes disposable lighters, refillable lighters, and all types of matches. If you need a lighter at your destination, purchase one after you arrive.

Are vaping devices and e-cigarettes allowed in checked bags?

Vaping devices with lithium batteries are prohibited in checked bags. You must carry them in your carry-on bag instead. The TSA treats them the same as other lithium battery devices because the battery poses a fire risk in the cargo hold.

Can I pack a curling iron or hair straightener in checked luggage?

Yes, as long as it is completely cool and dry before packing. Hair styling tools with cords are allowed in checked bags. If the device has a lithium battery and the battery cannot be removed, check with your airline, as some carriers restrict battery-powered devices in cargo.

What if my checked bag contains something the TSA flags?

The TSA may open and inspect your bag if something inside triggers concern. If they find a prohibited item, it will be removed and discarded, or you may be asked to repack it. In rare cases, you could face fines. Pack a contact number inside your bag so the TSA can reach you if they need to open it.

Can I pack a power bank or portable charger in checked luggage?

Power banks with lithium batteries must go in your carry-on bag, not checked luggage. The TSA prohibits spare lithium batteries in checked bags because of fire risk. Keep all portable chargers and battery packs in your carry-on where you can monitor them.