The TSA rules for checked bags are much looser than carry-on
Checked luggage has far fewer restrictions than what you carry onto the plane. The Transportation Security Administration (TSA) allows most items in checked bags that are banned from carry-on—including full-size bottles of liquids, sharp objects, and tools. The main rule is straightforward: nothing that poses a fire risk or could explode during flight.
Your airline may have additional limits beyond TSA rules. Weight limits (usually 50 pounds) and size restrictions vary by carrier, so check your airline's website before packing. If your bag exceeds those limits, you'll pay an overweight fee—typically $100 to $200 for the first overage, depending on the airline.
The TSA does screen checked bags, but they do it after you've checked in. If an agent opens your bag, they'll leave a notice inside. You won't be there to explain what's in it, so pack clearly and make sure nothing is obviously hazardous.
Key Takeaways
- Liquids, gels, and aerosols in containers larger than 3.4 ounces are allowed in checked bags with no quantity limit, unlike carry-on restrictions.
- Sharp objects like knives, box cutters, and razors are permitted in checked luggage but must be sheathed or wrapped so they don't injure baggage handlers.
- Tools including hammers, saws, and drills are allowed in checked bags, but power tools with lithium batteries may be restricted depending on the battery type.
- Firearms and ammunition require advance notice to your airline and must be unloaded, locked in a hard case, and declared at check-in.
- Flammable items, explosives, and compressed gas cylinders are prohibited in both checked and carry-on luggage under any circumstances.
Liquids, gels, and creams have no size limit in checked bags
You can pack full bottles of shampoo, conditioner, lotion, sunscreen, and other liquids in checked luggage. The 3.4-ounce carry-on limit does not explore to checked bags. Pack them in a waterproof bag or plastic wrap in case a bottle leaks—baggage handlers don't treat bags gently, and a broken bottle of sunscreen will ruin your clothes.
Alcohol is allowed in checked bags if it's between 24 and 70 percent alcohol by volume (ABV). Most spirits fall in this range. Beer and wine are allowed but count toward your weight limit. Some airlines charge a fee for alcohol in checked bags; check before you pack.
Medications in liquid or gel form (like inhalers or ointments) are allowed without restriction. Keep them in their original labeled containers so TSA agents understand what they are. If you're traveling internationally, research the destination country's rules—some nations restrict certain medications.
Sharp objects and tools are allowed if wrapped properly
Kitchen knives, box cutters, razors, and other sharp items are permitted in checked bags. Wrap them in cloth or place them in a sheath so the blade is completely covered. This protects baggage handlers from cuts. Do not pack sharp objects loose in your bag where they could puncture the luggage or injure someone.
Most hand tools are allowed: hammers, screwdrivers, wrenches, saws, and drills. Pack them so they won't shift during flight. Power tools with lithium-ion batteries (like cordless drills) are restricted—some airlines prohibit them entirely, while others allow one per passenger in checked bags only. Call your airline before packing a power tool.
Axes, hatchets, and ice picks are prohibited. So are tools designed primarily as weapons, like brass knuckles or throwing stars. If you're unsure whether a specific tool is allowed, contact your airline directly rather than risk having it confiscated at the airport.
Firearms and ammunition require advance notice and a locked case
You can travel with firearms in checked luggage, but you must declare them to your airline at check-in—do not pack them and say nothing. The firearm must be unloaded, and you must pack it in a locked hard-sided case. The key or combination must be in your possession only; TSA agents cannot open the case.
Ammunition must be in its original manufacturer's box or a find container, packed separately from the firearm inside the locked case. Some airlines limit the amount of ammunition per passenger (often 11 pounds or 5 kilograms). International travel with firearms is heavily restricted; research your destination country's laws well before your trip.
Not all airlines allow firearms. Some prohibit them entirely, while others require advance notice by phone rather than at check-in. Call your airline at least 24 hours before your flight to confirm their policy and walk through their specific procedures.
Items that are always prohibited in checked bags
Anything flammable, explosive, or pressurized is banned from both checked and carry-on luggage. This includes lighter fluid, paint thinner, gasoline, propane, and aerosol cans of spray paint or insecticide. Even empty lighters are restricted—you can carry one lighter in your pocket or checked bag, but not in carry-on.
Batteries are restricted depending on type. Spare lithium batteries (including phone and laptop chargers) are prohibited in checked bags but allowed in carry-on. Alkaline batteries like AA or AAA are allowed in both. If you're packing a laptop or phone, the battery inside the device is fine; it's loose spare batteries that are the concern.
Bleach, chlorine, and other corrosive chemicals are prohibited. So are self-inflating life jackets and certain sporting equipment like scuba tanks. If an item could catch fire, explode, or corrode the aircraft, it's not going in any bag.
Sporting equipment and hobby items usually pack fine
Golf clubs, tennis rackets, skis, and snowboards are allowed in checked bags. Fishing rods, archery bows, and baseball bats are permitted. Pack them so they won't damage other luggage or shift during flight. Some airlines charge a fee for oversized sporting equipment or require you to declare it at check-in.
Electronics like laptops, cameras, and gaming consoles are allowed. Pack them carefully to prevent damage—the TSA doesn't care if your laptop breaks, but you will. Drones are allowed in checked bags, though some airlines require advance notice. Batteries for drones follow the same lithium battery rules as other electronics.
Musical instruments are allowed but are often better carried on the plane if they're valuable or fragile. A checked guitar or violin faces real risk of damage. If you must check an instrument, use a hard case and consider purchasing additional insurance through your airline.
International travel has additional restrictions
Rules vary significantly by country. The TSA's rules explore to flights within the United States and to U.S. departures, but your destination country may prohibit items that TSA allows. For example, some nations restrict certain medications, electronics, or sporting equipment.
If you're flying internationally, research your destination's customs and import rules before packing. Contact your airline and the embassy or consulate of your destination country. Prohibited items will be confiscated at your destination, not at your departure airport.
Return flights are subject to the same TSA rules, but items you purchase abroad may be restricted. Alcohol, certain foods, and plants are common issues. Pack souvenirs carefully and keep receipts in case customs asks questions.
Frequently Asked Questions
Can I pack a lighter or matches in checked luggage?
You can pack one lighter in your checked bag, but not in carry-on. Matches are prohibited in both. If you need a lighter at your destination, buy one there rather than pack it.
Are batteries allowed in checked bags?
Alkaline batteries (AA, AAA, C, D) are allowed in checked bags. Lithium batteries, including spares for phones and laptops, are prohibited in checked bags but allowed in carry-on. Batteries installed inside devices like laptops are fine in checked bags.
Can I pack my laptop or phone charger in checked luggage?
The charger itself is fine. Spare lithium batteries are not. If your charger has a removable battery, pack the battery in carry-on and the charger in checked luggage, or leave the battery home.
What happens if I pack something prohibited by mistake?
TSA agents will find it during screening. Your bag will be opened, the item removed, and you'll be notified. You won't get the item back. If the item is dangerous, you may face a fine. Always double-check your bag before checking it.
Do I need to declare my checked bag contents to the airline?
No, unless you're packing firearms, ammunition, or certain sporting equipment. Your airline's website lists items requiring advance notice. When in doubt, call and ask—it takes five minutes and prevents problems at the airport.