What the TSA allows in checked bags

The TSA permits most everyday items in checked luggage that would be dangerous in the cabin — tools, sports equipment, certain liquids, and electronics with batteries. The key rule: if it would pose a fire or safety risk at 35,000 feet in a pressurized cabin, it goes in checked bags instead. Checked luggage is stored in a cargo hold where a fire can be detected and contained, so the restrictions are looser than carry-on rules.

You can pack clothing, shoes, toiletries in solid or gel form, books, electronics, sports gear, and most household items without restriction. Liquids and gels in checked bags must follow the same rules as carry-on — they count toward the 3.4-ounce limit per container — but you can pack more total liquid volume because you are not carrying it through the airport yourself. A quart-sized bag is not required for checked luggage.

The TSA website lists prohibited items by category. If you are unsure whether something is allowed, search the TSA's "What Can I Bring?" tool by item name, and it will tell you whether it is permitted in checked or carry-on bags, or both.

Key Takeaways

  • Most tools, liquids, gels, and sports equipment that are banned from carry-on bags are allowed in checked luggage.
  • Lithium batteries and certain flammable items have specific limits or are prohibited entirely, even in checked bags.
  • Liquids and gels in checked bags still have a 3.4-ounce limit per container, but you can pack more containers than in carry-on.
  • Firearms, ammunition, and explosives require advance notice to your airline and must be packed and declared according to airline rules, not just TSA rules.
  • Your airline may have stricter rules than the TSA, so check their website before packing anything unusual.

Liquids, gels, and aerosols in checked bags

Liquids and gels are allowed in checked bags without the 3.4-ounce container limit that applies to carry-on. However, each individual container must still be 3.4 ounces or smaller. You can pack multiple containers — shampoo, conditioner, lotion, sunscreen, toothpaste, and other gels — as long as each one is under 3.4 ounces. Pack them in a leak-proof bag or wrap them in plastic to prevent spills that damage other items.

Aerosols like deodorant, hairspray, and spray sunscreen are allowed in checked bags in limited quantities. Most airlines permit one 18-ounce aerosol container per passenger, and it must have a safety cap. Spray paint, insecticides, and other industrial aerosols are prohibited entirely.

Alcohol in sealed, unopened bottles is allowed in checked bags. The TSA permits up to one liter per passenger, and some airlines allow more. Check your airline's policy before packing expensive bottles — damage in transit is not covered by the airline.

Electronics and batteries in checked luggage

Lithium batteries are the main restriction here. Spare lithium batteries — the kind in phone chargers, laptop power banks, and camera equipment — are prohibited in checked bags. They must go in your carry-on bag. This rule applies to loose batteries and batteries installed in devices like power banks or external hard drives.

Electronics with non-removable lithium batteries, like phones, laptops, and tablets, are allowed in checked bags. The battery is built in and cannot be removed, so it is treated differently than a spare battery. Laptops and large electronics should be powered off and protected from damage.

Other electronics — hair dryers, electric razors, portable speakers, cameras — are fine in checked bags. Devices with alkaline batteries (AA, AAA, C, D) are also allowed. The concern is only lithium batteries, which can overheat and catch fire if damaged.

Tools, sports equipment, and sharp objects

Tools that are prohibited in carry-on bags are allowed in checked luggage. This includes hammers, screwdrivers, wrenches, saws, drills, and power tools. Pack them securely so they do not shift during transit and damage other items or the luggage itself.

Sports equipment rules vary by item. Golf clubs, baseball bats, hockey sticks, and ski poles are allowed. Martial arts weapons like nunchucks, throwing stars, and brass knuckles are prohibited entirely. Firearms and ammunition require advance notice to your airline and must be unloaded, locked in a hard case, and declared at check-in — this is an airline rule, not just a TSA rule.

Knives, razors, and other sharp objects are allowed in checked bags as long as they are securely wrapped or sheathed so they cannot cut baggage handlers or damage the bag. Kitchen knives, pocket knives, and hunting knives are all permitted.

Items that are prohibited in all bags

Some items cannot fly in checked or carry-on luggage under any circumstances. Explosives, fireworks, flares, and ammunition (except as noted above with firearms) are completely banned. Certain chemicals, pesticides, and corrosive materials are also prohibited.

Self-inflating life jackets and life rafts with compressed gas cartridges are banned because the cartridges can rupture. Lighters and lighter fluid are prohibited — this includes the small butane lighters you might pack for camping. Matches are allowed in limited quantities in carry-on only, not checked bags.

If you are packing something unusual — camping fuel, pool chemicals, or anything you are unsure about — search the TSA's "What Can I Bring?" tool before you pack. It is faster than guessing and arriving at the airport with a prohibited item.

Packing tips to protect your checked bag

Checked luggage gets thrown, stacked, and sometimes crushed. Pack fragile items in the center of your bag, surrounded by soft items like clothing. Use socks, underwear, and t-shirts as padding around breakable things. Wrap liquids and gels in plastic bags and place them in a separate compartment away from electronics and documents.

Keep valuable items, medications, and important documents in your carry-on bag instead. Airlines are not responsible for damage or loss of items in checked bags, so do not pack anything you cannot afford to lose or have damaged. If you are traveling with expensive electronics or jewelry, consider leaving them at home or carrying them on.

Use a luggage lock on your checked bag. The TSA can open locked bags with special tools if they need to inspect the contents, so TSA-approved locks are a good choice. Label your bag with your name and phone number inside and outside in case it gets lost.

Airline-specific rules that override TSA rules

The TSA sets the federal baseline, but your airline can impose stricter rules. Some airlines prohibit items that the TSA allows, or limit the quantity or size. Before packing anything that is not a standard clothing item, check your airline's baggage policy on their website.

Airlines also have rules about bag weight and size. Most domestic airlines allow one checked bag up to 50 pounds and 62 inches (length plus width plus height). Overweight or oversized bags incur fees. Some airlines charge for the first checked bag entirely, so confirm what is included with your ticket.

International flights may have different rules depending on the destination country. Some countries prohibit items that the TSA allows. If you are flying internationally, check both the TSA rules and the rules of the country you are entering before you pack.

Frequently Asked Questions

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

No. Power banks contain lithium batteries and must go in your carry-on bag only. This applies even if the power bank is small or has a low capacity. The TSA prohibits spare lithium batteries in checked luggage because of fire risk in the cargo hold.

Are medications allowed in checked luggage?

Yes, but keep them in your carry-on instead. Medications in their original labeled containers are allowed in both checked and carry-on bags, but checked bags can be lost or delayed. Keep prescription medications, inhalers, and other essential medicines with you on the plane.

Can I pack a lighter or matches for camping?

Lighters are prohibited in both checked and carry-on bags. Matches are allowed in carry-on only, in limited quantities — one box of safety matches or one lighter-sized container of strike-anywhere matches. Neither is allowed in checked bags.

What happens if I pack a prohibited item by mistake?

TSA officers will find it during screening and confiscate it. You will not be charged or fined for an honest mistake, but you will lose the item. If you realize before you check your bag that you packed something prohibited, remove it and leave it at home or in your car.

Do I need to declare my checked bag contents to the airline?

No, unless you are packing firearms or ammunition, which must be declared at check-in. For everything else, the TSA screens your bag after you check it. You do not need to tell the airline what is inside unless the airline has a specific rule about that item.