Most everyday items are allowed in checked bags, but liquids, sharp objects, and certain electronics have real restrictions
You can pack most of what you own in a checked bag — clothes, shoes, books, toiletries in solid form, tools, sports equipment, and kitchen items all travel fine. The TSA (Transportation Security Administration) restricts checked luggage mainly to prevent fires in the cargo hold, so the rules focus on flammable liquids, pressurized containers, and anything that could ignite or explode. Batteries, lighters, and aerosols are the most common items that catch people off guard.
The rules are the same whether you fly domestic or international, though some countries add their own restrictions on what can land there. Your airline may have tighter rules than the TSA, so check their website before you pack — baggage policies vary by carrier and sometimes by ticket type.
Key Takeaways
- Liquids and gels over 3.4 ounces are allowed in checked bags, unlike carry-on, so you can pack full-size shampoo, lotion, and sunscreen.
- Lighters, lighter fluid, and most aerosols are banned from checked luggage entirely — they cannot go in the cargo hold under any circumstances.
- Lithium batteries (the kind in phones and laptops) must stay in your carry-on bag or be removed from devices entirely.
- Sharp objects like knives, razors, and tools are allowed in checked bags as long as they are wrapped or sheathed so they cannot cut baggage handlers.
- Your airline's baggage policy may be stricter than the TSA rules, so confirm with them before packing anything questionable.
Liquids and gels you can pack below the cargo deck
Checked bags have no liquid limit, so you can pack full-size bottles of shampoo, conditioner, lotion, sunscreen, toothpaste, and any other gel or liquid. This is the main advantage of checking a bag — you do not have to buy travel sizes or leave products behind. Seal containers tightly and consider putting them in a plastic bag in case of leaks, since the cargo hold is unpressurized and temperature changes can cause bottles to weep.
Alcohol is allowed in checked bags in the United States, but it counts toward your baggage weight limit and some airlines charge extra for it. International flights have stricter rules — many countries ban alcohol in checked luggage entirely, and some allow it only in sealed, duty-free packaging. Check your destination country's rules before packing a bottle.
Batteries and electronics that must stay in your carry-on
Lithium batteries — the rechargeable kind in phones, laptops, tablets, and power banks — are banned from checked luggage because they can overheat and cause fires in the cargo hold. This includes the battery itself if it is removed from a device. You must carry these in your personal bag or leave them at home. Spare lithium batteries are especially restricted; the TSA allows only two in carry-on luggage, and they must be in your bag, not checked.
Alkaline batteries (the kind you buy in packs for remote controls and flashlights) are allowed in checked bags. Devices that contain lithium batteries — like cameras, e-readers, and electric razors — can go in checked luggage as long as the battery stays inside the device and is protected from accidental set up. If the device could turn on during flight, wrap it or disable it somehow.
Laptops, tablets, and other large electronics can be checked, but airlines often recommend carrying them because of the rough handling in cargo. If you do check them, power them off completely and protect them in a padded case.
Sharp objects and tools wrapped and sheathed
Knives, razors, scissors, and tools are allowed in checked bags as long as they are wrapped, sheathed, or otherwise secured so a baggage handler cannot accidentally cut themselves. A kitchen knife in a knife roll, a straight razor in its case, or a multi-tool in a protective pouch all meet this requirement. Wrap sharp edges in cloth or bubble wrap if the item does not have its own sheath.
Prohibited sharp items in checked luggage are very few — mainly ice axes, ice picks, and similar mountaineering tools designed to pierce. Pocket knives, box cutters, and utility knives are fine as long as they are sheathed. Scissors under 7 inches are allowed; longer scissors are prohibited.
Lighters and aerosols that cannot fly in cargo
Lighters and lighter fluid are completely banned from checked luggage — they cannot go in the cargo hold under any circumstances, and you cannot bring them in carry-on either. This includes disposable lighters, refillable lighters, and lighter fluid. If you need a lighter at your destination, buy one after you land.
Most aerosols are also banned from checked bags: spray paint, insecticide, air freshener, and self-defense sprays (including pepper spray and mace) cannot be packed. The exception is one 2% by mass self-defense spray in checked luggage only, and only if it has a safety mechanism to prevent accidental discharge — this rule varies by airline, so call ahead if you need to travel with it.
Hair spray, deodorant, and other personal-care aerosols are prohibited in both carry-on and checked bags on commercial flights. If you need these items, buy them at your destination or pack solid alternatives like stick deodorant.
Sports equipment and tools that usually travel fine
Most sports gear is allowed: golf clubs, tennis rackets, skis, snowboards, fishing rods, and baseball bats can all go in checked luggage. Bicycles are allowed but usually incur an extra fee ($50 to $150 depending on the airline) and must be packed in a bike bag or hard case. Some airlines require advance notice for oversized sports equipment.
Hand tools like hammers, screwdrivers, wrenches, and saws are allowed in checked bags. Power tools are allowed as long as the battery is removed (if it is lithium) or the tool is powered by alkaline batteries. Nail guns and powder-actuated tools are prohibited. If you are traveling with tools for work, check your airline's policy on quantity and type — some have limits on how many tools you can pack.
Medications, food, and everyday items
Prescription medications in their original labeled containers are allowed in checked and carry-on bags. You do not need a copy of your prescription, but it is wise to carry one in case of questions. Liquid medications like insulin or cough syrup follow the same rules as other liquids — unlimited in checked bags, but the 3.4-ounce limit applies in carry-on.
Solid food items — sandwiches, fruit, nuts, chocolate, cheese — are allowed in checked bags. Liquids and gels like peanut butter, honey, jam, and yogurt are allowed in checked bags but prohibited in carry-on (except for baby food and breast milk). Meat, seafood, and dairy are allowed if they are shelf-stable or frozen solid when you pack them, but some countries prohibit these items on arrival, so check your destination's customs rules.
Everyday items like books, clothing, shoes, jewelry, cameras, and toiletries in solid form have no restrictions. Matches are prohibited, but lighters are the main fire-risk item the TSA focuses on.
What your airline might restrict beyond TSA rules
Airlines can impose stricter rules than the TSA allows. Some carriers charge extra for sports equipment, limit the number of bags you can check, or have their own rules on hazardous materials. A few examples: some airlines ban all lithium batteries in checked bags (not just loose ones), some prohibit certain types of tools, and some have weight limits that are lower than the standard 50 pounds.
Before you pack anything you are unsure about, visit your airline's baggage policy page or call their baggage desk. They can tell you whether a specific item is allowed and whether it will cost extra. If you are flying internationally, also check the customs rules for your destination country — some nations prohibit items that the TSA allows, like certain foods, plant material, or electronics.
Frequently Asked Questions
Can I pack a power bank or portable charger in my checked bag?
No. Power banks contain lithium batteries and must stay in your carry-on bag. You can bring up to two spare lithium batteries in carry-on luggage, but they cannot be checked. If your power bank is built into a device like a phone, keep the device in your personal bag during flight.
Are hair straighteners and curling irons allowed in checked luggage?
Yes, as long as they are powered by alkaline batteries or are unplugged and cooled completely. If they contain a lithium battery, they must go in your carry-on. Wrap the heating element in cloth to prevent burns to baggage handlers.
Can I pack a knife for cooking at my destination?
Yes, as long as it is sheathed or wrapped so the blade is completely covered and cannot cut anyone handling the bag. A kitchen knife in a knife roll or wrapped in cloth is fine. You cannot carry a knife in your personal bag — it must be checked.
What happens if I accidentally pack something prohibited?
TSA screeners will find it during X-ray screening. They may confiscate the item, delay your flight, or in rare cases refer you to law enforcement. If you realize you packed something prohibited before you check your bag, remove it and leave it at home or in your car.
Can I pack a laptop or camera in checked luggage?
Yes, but airlines recommend carrying electronics in your personal bag because cargo handling is rough and checked bags are not insured for damage. If you do check them, power them off, protect them in a padded case, and consider purchasing additional insurance through your airline.