The Basic Rule: Most Items Are Allowed, But Some Are Banned Outright

Most everyday items can go in checked luggage — clothes, shoes, toiletries, books, electronics, and souvenirs are all fine. The real restrictions come from hazardous materials that airlines and the Transportation Security Administration (TSA) prohibit because they pose a fire or safety risk during flight. These banned items are the same whether you fly domestic or international, though some countries add their own rules once you land.

The key difference between checked and carry-on luggage is that checked bags are stored in the cargo hold, away from passengers. This means some items that are forbidden in the cabin — like certain quantities of alcohol or aerosols — are actually allowed in checked bags because they are physically separated from people. Other items, like lighters and flammables, are banned from both.

Key Takeaways

  • Flammable items (lighters, matches, gasoline, paint thinner) are banned from checked luggage entirely, not just carry-on bags.
  • Aerosols like deodorant and hairspray are allowed in checked bags in limited quantities, but prohibited in carry-on bags.
  • Lithium batteries and electronics with lithium batteries have strict rules — some are allowed checked, others are not, depending on the device and battery type.
  • Alcohol over 70% proof (like most spirits) is banned from checked luggage, but wine and beer under that threshold are allowed in reasonable quantities.
  • Medications in their original containers are allowed, but controlled substances and some prescription drugs require documentation or are prohibited entirely.

Flammable and Explosive Items That Are Always Banned

Do not pack lighters, matches, lighter fluid, or any fuel in checked luggage. This includes butane lighters, zippo-style lighters, and electronic lighters. Even one lighter is prohibited. The same goes for gasoline, paint thinner, acetone, and other solvents — these are banned from both checked and carry-on bags.

Fireworks, flares, and ammunition are also prohibited in checked luggage. This includes toy fireworks and sparklers. If you are traveling with hunting ammunition, check with your specific airline before booking, as some carriers have additional restrictions or require special handling and documentation.

Aerosols, Sprays, and Pressurized Containers

Aerosol cans like deodorant, hairspray, and spray sunscreen are allowed in checked luggage in limited quantities — typically one 18 oz. container per passenger, though this varies by airline. The container must have a safety cap and cannot leak. These same items are forbidden in carry-on bags, which is why checked luggage is the right place for them.

Spray paint, insecticide, and other industrial aerosols follow the same rule: allowed in checked bags only, in limited quantities, with a safety cap. Check your airline's website for the exact limit, as some carriers allow more than others. If the can is damaged or leaking, do not pack it at all.

Lithium Batteries and Electronics

Lithium batteries are the trickiest category because the rules depend on the device and battery type. Spare lithium batteries — loose batteries you are packing separately — are banned from checked luggage entirely. They must go in carry-on bags only, and airlines limit you to two spares per person. This includes phone batteries, laptop batteries, and power bank batteries.

Electronics with built-in lithium batteries — like phones, laptops, cameras, and tablets — are allowed in checked luggage as long as they are powered off and protected from short circuits (meaning the battery terminals cannot touch metal). Larger lithium batteries, like those in power tools or e-bikes, may be prohibited entirely; check with your airline before packing.

Vaping devices and e-cigarettes with lithium batteries are banned from checked luggage by federal law. They are allowed in carry-on bags only, and you cannot use them during flight. Spare vape batteries follow the same rule as other spare lithium batteries: carry-on only, maximum two per person.

Alcohol and Beverages

Wine, beer, and spirits under 70% alcohol by volume (ABV) are allowed in checked luggage in reasonable quantities — typically up to five liters per passenger, though this varies by airline and destination country. Spirits over 70% ABV are banned from checked luggage entirely. This means most whiskey, vodka, rum, and gin cannot be packed in checked bags.

Pack alcohol in the center of your bag, surrounded by soft items like clothes, to prevent breakage. If a bottle breaks, it can damage other belongings and create a safety hazard. Some airlines require you to declare alcohol at check-in, so arrive early and mention it to the agent if you are packing bottles.

Medications, Toiletries, and Personal Care Items

Prescription and over-the-counter medications in their original labeled containers are allowed in checked luggage. Bring a copy of the prescription or a letter from your doctor if you are traveling internationally with controlled substances or medications that might raise questions at customs. Some countries ban certain medications entirely, so research your destination before packing.

Toiletries like shampoo, conditioner, lotion, and toothpaste are allowed in checked luggage in any quantity. Unlike carry-on bags, there is no 3.4 oz. limit for checked bags. Nail clippers, razors, and scissors are also allowed in checked luggage (though scissors are prohibited in carry-on bags). Perfume and cologne are allowed as long as they are not in aerosol form or exceed alcohol content limits.

Sharp Objects and Tools

Knives, box cutters, and other sharp tools are allowed in checked luggage as long as they are securely wrapped or sheathed so they cannot injure baggage handlers. Pack them in the center of your bag, surrounded by clothing. Scissors with blades longer than 4 inches are allowed in checked bags but prohibited in carry-on.

Corkscrews, can openers, and multi-tools with blades are allowed in checked luggage. Straight razors and safety razors are also permitted. The rule is straightforward: if it is sharp and could injure someone, wrap it securely and pack it in the middle of your checked bag, away from the edges.

Frequently Asked Questions

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

Yes, hair styling tools with cords are allowed in checked luggage. They must be completely cool and unplugged before packing. Battery-powered styling tools are also allowed, as long as the battery cannot accidentally turn on during transport. Wrap the cord or battery compartment to prevent accidental set up.

Are power banks and portable chargers allowed in checked bags?

No. Power banks contain lithium batteries and must go in carry-on luggage only. You can bring a maximum of two spare power banks per person, and they must be in your carry-on bag. This is a federal rule enforced by all airlines.

What if I am packing a gift that contains a prohibited item?

Do not wrap it. TSA and airline staff need to see what is inside your bag, and wrapping can delay screening or result in the item being confiscated. Pack the item unwrapped, and if it is prohibited, leave it at home or ship it to your destination instead.

Can I pack a lighter in checked luggage if it is empty?

No. Even empty lighters are banned from checked luggage. The residual fuel and fumes inside an empty lighter are still considered a fire hazard. Leave all lighters at home or purchase one at your destination.

Are there different rules for international flights?

The TSA and airline rules are the same for domestic and international flights departing the United States. However, your destination country may have additional restrictions on what you can bring in. Research your destination's customs rules before packing, especially for medications, alcohol, and electronics.