Traveling is one of the most beautiful activities in the world; a little less beautiful is all that part that has to do with the preparation of the trip.
Preparing all the documents and making sure you follow all the rules of the airlines and countries you are going to visit.
One of the mistakes travelers make most often is not looking into the things you cannot take in your checked luggage on the plane.
Unfortunately, these rules change often, and it’s always difficult to stay updated, which is why in this article you’ll fine a simple list of things you cannot take in checked baggage in 2025.
E-Cigarettes and Vaping Devices
E-cigarettes and vaping devices have become extremely popular in recent years.
If you travel with them, remember that international aviation authorities (including the TSA in the United States and similar agencies worldwide) require lithium battery–powered devices, such as e-cigarettes and vape pens, to be carried on board instead of being packed in checked luggage.
The reason is quite simple: these batteries (even if they’re small) pose a fire risk if they overheat or are damaged.
Some airlines also mandate that these devices be fully switched off and any spare batteries be properly protected and stored in your carry-on baggage.
PLASE REMEMBER: Even though you can bring them on a plane, vaping is strictly prohibited. If you’re caught, you’ll be kicked off.
Power Banks
For the same reason, other lithium-ion and lithium-metal batteries can ignite if they’re exposed to pressure or heat, conditions more likely to go unnoticed in checked baggage.
Then, remember that laptop batteries, phone batteries, power banks, and rechargeable camera batteries must be carried on board.
Some airlines also require that big batteries are correctly stored (for example, in their original packaging or a battery case).
Explosives and Fireworks
This is one of the longest-standing rules: explosive materials and fireworks can never go into checked luggage (or carry-on, for that matter).
Not only do they pose a severe fire/explosion risk, but they are also prohibited items under every aviation security regulation.
Remember that this also applies to any celebratory items.
Flammable Liquids and Fuels
Lighter fluid, paint thinner, and other flammable solvents are not allowed in checked luggage. The vapors alone can be dangerous in a pressurized cargo hold, and there is a significant risk if they leak.
In 2025, as more travelers bring specialized camping gear, guidelines have begun highlighting that empty fuel containers can typically be checked.
Yhey must be thoroughly cleaned and free of fumes. Even trace amounts of fuel can lead to a denial at check-in.
Self-Defense Sprays and Weapons
Other items that are becoming very popular are those used for self-defense.
Please consider that pepper spray, mace, and other self-defense sprays contain chemicals under pressure and can be hazardous in the cargo hold. Additionally, certain airlines do not allow them in either checked or carry-on bags without special permission.
This year, some national regulators have relaxed restrictions on very small personal-defense sprays, but many airlines still enforce strict bans or require prior approval.
PRO TRAVELER: Always check specific airline policies and destination regulations before traveling.
Hoverboards and Certain Electric Scooters
Hoverboards and many compact e-scooters are not allowed in checked luggage. Once again, the main problem is the lithium batteries, which often exceed the allowed limit.
Remember to check the rules of your airlines. Usually, the maximum capacity is around 100–160 Wh.
Compressed Gas Cylinders (Including Certain SCUBA Tanks)
Pressurized cylinders, like those used for SCUBA diving or other recreational purposes, can be dangerous if mishandled, as pressure changes in flight create additional stress on the container.
In 2025, most airlines will allow empty cylinders (with their valves removed) in checked luggage, while fully or partially pressurized cylinders will require special documentation and may still be forbidden entirely by certain carriers.
Firearms (Without Proper Declaration)
Be very careful if you want to carry a firearm with you. Attempting to check firearms without proper documentation or in improper packaging is illegal in many jurisdictions.
Usually firearms have to be properly declared, secured, and packed in a locked, hard-sided container if checking them in.
For security reasons, some airlines and airports integrated more sophisticated firearms declaration processes in 2025, so plan well in advance.
I know it sounds strange, but on the contrary, there are some things you wouldn’t expect but can surprisingly take on a plane.
Corrosive or Toxic Materials
Substances like bleach, drain cleaners, acids, and pesticides can cause chemical burns, damage surfaces, or create toxic fumes if they leak. They are universally prohibited in checked luggage.
As countries push for stricter environmental and hazmat regulations, certain biological samples (for research or commercial purposes) may also require special authorization from 2025.
Always verify the legality and proper containment of any specialized items well in advance.
In addition, avoid putting things you don’t want to lose in checked baggage, especially if you are traveling with one of these airlines that frequently lose baggage.
Perishable Foods or Strong-Smelling Items
While not universally “prohibited” by law, certain foods, especially those that are highly perishable or carry pungent smells, may be restricted by individual airlines to prevent contamination or odor issues in the cargo hold.
In addition, many countries in 2025 have tightened customs rules on fresh produce, meats, dairy, and certain plants to contain the spread of invasive species and diseases.
Remember to check the list of the 7 foods you should never eat on a plane.
