Most everyday items are allowed in checked baggage, but liquids, sharp objects, and certain electronics have real restrictions

Checked luggage — the bag you hand to the airline at the counter and don't see until baggage claim — has different rules than carry-on. The main rule is straightforward: anything that could endanger the aircraft or crew is banned. That means no flammable liquids, no compressed gases, and no batteries that might catch fire. Beyond that, most of what you own can go in checked bags. Clothes, shoes, books, toiletries in solid form, tools, sports equipment, and kitchen items are all fine. The catch is that some items that seem harmless — like certain batteries, lighters, or aerosols — are actually prohibited, and others are allowed only in limited quantities.

Different airlines enforce these rules slightly differently, and international flights have stricter rules than domestic ones. The rules also change when you're flying to or from certain countries. Before you pack, check your specific airline's website or call them directly. A five-minute phone call beats discovering at the airport that your bag won't fly.

Key Takeaways

  • Solid toiletries like deodorant sticks, solid perfume, and bar soap are allowed in checked bags with no quantity limit, but liquids and gels (including toothpaste and shampoo) follow the same rules as carry-on if you want to use them during the flight.
  • Lithium batteries — the kind in phones, laptops, and power banks — are banned from checked luggage on most airlines because they can catch fire; they must stay in your carry-on or be left behind.
  • Tools, knives, and other sharp or heavy objects that would be confiscated from carry-on are actually allowed in checked bags, including hammers, saws, and kitchen knives.
  • Lighters, matches, and aerosol cans (including deodorant spray and hairspray) are prohibited in checked bags on most airlines, though some allow one lighter in a protective case.
  • Check your airline's specific rules before packing because restrictions vary by carrier and by whether you're flying domestically or internationally.

What liquids and gels you can pack in checked bags

Liquids and gels in checked luggage have no quantity limit — you can pack a full-size bottle of shampoo, a gallon of olive oil, or a case of wine. The restriction that limits you to 3.4 ounces per container applies only to carry-on bags. In checked luggage, pack whatever size containers you want.

However, some liquids are banned from checked bags entirely. These include paint, paint thinner, gasoline, and other flammable liquids. Alcohol over 140 proof (70% ABV) is also banned. Alcohol between 24 and 140 proof is allowed in checked bags only, up to one liter per passenger on most airlines. Check your airline's rules on alcohol before packing — some carriers have stricter limits.

Perfume, cologne, and other fragrances are allowed in checked bags. Nail polish and nail polish remover are banned because they're flammable. Medications in liquid form (like cough syrup) are allowed. If you're traveling internationally, pack liquids in the center of your bag, surrounded by clothes, to cushion them in case of pressure changes.

Batteries and electronics that belong in checked luggage

Lithium batteries — the rechargeable batteries in phones, laptops, tablets, and power banks — are banned from checked luggage on passenger flights. They must stay in your carry-on bag or be left behind. This rule exists because lithium batteries can overheat and catch fire, and the cargo hold has no way to detect or fight a fire. The ban applies to loose batteries and to devices with built-in batteries. Your phone, laptop, and power bank all stay with you.

Other types of batteries are allowed in checked bags. Alkaline batteries (the kind you buy in packs for remote controls and flashlights) are fine. Dry-cell batteries used in some older electronics are fine. The restriction is specific to lithium-ion and lithium-metal batteries.

Electronics themselves — cameras, headphones, gaming devices, hair dryers — are allowed in checked bags as long as they don't contain lithium batteries or aren't powered by them. If you're packing a camera or other device with a lithium battery, remove the battery and pack it in your carry-on instead, or leave the device in your carry-on.

Tools, knives, and sharp objects allowed in checked bags

Items that would get you stopped at the carry-on security line are perfectly legal in checked luggage. Kitchen knives, pocket knives, box cutters, and other blades are allowed. Hammers, saws, screwdrivers, and other tools are allowed. Scissors with blades longer than 4 inches are allowed. Razors and razor blades are allowed. Axes, hatchets, and ice picks are allowed.

The reason is straightforward: once your checked bag is in the cargo hold, you can't reach it during the flight. The security concern that applies to carry-on — a passenger using a knife or tool as a weapon — doesn't exist. Pack these items in the center of your bag so they don't puncture the bag itself or damage other luggage during handling.

Sports equipment with sharp edges — ice skates, ski poles, fishing hooks — is also allowed in checked bags. If you're packing climbing gear with carabiners or other metal hardware, it's fine. Just make sure nothing is loose enough to shift around and damage your bag or other bags.

Prohibited items that commonly surprise travelers

Lighters and matches are banned from checked bags on most airlines. This includes disposable lighters, refillable lighters, and matchbooks. Some airlines allow one lighter in a protective case, but the rule varies. Check before you pack. If you smoke and need a lighter at your destination, buy one after you land.

Aerosol cans — including spray deodorant, hairspray, spray sunscreen, and spray paint — are banned from checked bags because they can rupture under pressure. Solid deodorant is fine. Aerosol cans must be left behind or purchased at your destination.

Compressed gas cylinders of any kind are banned from checked bags. This includes propane, butane, oxygen, and diving tanks. If you need a diving tank at your destination, rent one there.

Certain sports equipment requires advance notice. Skis, snowboards, and golf clubs are allowed, but some airlines charge a fee and require you to declare them when you book. Firearms and ammunition have strict rules that vary by airline and destination — if you hunt or shoot, contact your airline weeks in advance.

International flights and country-specific restrictions

Rules are stricter on international flights than domestic ones. Some items allowed in U.S. checked bags may be banned when flying to or from other countries. Lithium batteries, for example, have stricter limits on international flights. Some countries ban certain foods, plants, and animal products entirely.

If you're flying internationally, check both your airline's rules and the rules of the country you're flying to. The U.S. Transportation Security Administration (TSA) website lists what's allowed on U.S. flights, but other countries have their own rules. Your destination country's customs website usually has a list of prohibited items.

Some items that are legal to own may still be illegal to transport across borders. Certain medications, for example, are controlled substances in some countries. If you're packing prescription medications, carry a copy of the prescription and the original labeled bottle. Pack medications in your carry-on, not checked luggage, so you have them if your checked bag is delayed.

How to pack fragile items safely in checked luggage

Checked baggage gets thrown, dropped, and stacked. If you're packing something fragile — glassware, electronics, souvenirs — wrap it in clothes or towels and pack it in the center of your bag, surrounded by soft items. Don't pack fragile items near the edges or corners of the bag where they're more likely to be damaged.

For very fragile items, consider packing them in your carry-on instead. A checked bag is not the right place for irreplaceable items, heirlooms, or anything you can't afford to lose or have broken. If something is valuable or fragile enough to worry about, keep it with you.

Use packing cubes or compression bags to organize your checked luggage and keep items from shifting. This also makes it easier to repack if your bag is inspected by customs or security.

Frequently Asked Questions

Can I pack my laptop in checked luggage?

Your laptop itself is allowed, but the lithium battery inside it is not. You must pack your laptop in your carry-on bag. The same applies to tablets and any other device with a built-in lithium battery. If you want to pack a laptop in checked luggage, you would need to remove the battery first, which is not practical for modern devices.

Are hair dryers and curling irons allowed in checked bags?

Yes, as long as they don't have lithium batteries. Most plug-in hair dryers and curling irons are fine. Battery-powered heated styling tools are allowed if they use alkaline batteries, but if they use rechargeable lithium batteries, they must go in your carry-on. Check the device's manual or label to see what type of battery it uses.

Can I pack a full-size bottle of perfume in checked luggage?

Yes. Perfume and cologne are allowed in checked bags with no quantity limit. The 3.4-ounce limit applies only to carry-on bags. Pack it in the center of your bag surrounded by clothes to cushion it in case of pressure changes during flight.

What happens if I accidentally pack a prohibited item in checked luggage?

If security finds a prohibited item during screening, your bag may be delayed or the item may be confiscated. In some cases, you may be fined. It's better to check your airline's rules before you pack and remove anything questionable. If you're unsure about an item, call your airline and ask.

Can I pack my power bank in checked luggage?

No. Power banks contain lithium batteries and must stay in your carry-on bag. This is one of the most common items people accidentally try to pack in checked luggage. Keep all portable chargers and power banks in your carry-on.