What You Can Bring on a Plane in Carry-On and Checked Bags
Packing for a flight should be straightforward, but the rules come from several sources: TSA security policy, FAA safety regulations, individual airline limits, and the customs rules of your destination country. The information below focuses on TSA and FAA rules for U.S. airports, which most domestic travelers encounter first. Airline and international rules may add extra restrictions.
The goal is to give you a clear decision framework: what to pack, where it belongs, what the limits are, and when to check official sources before you reach the airport. Every section below connects directly to a real packing choice.
Quick Answer for What You Can Bring on a Plane
Most everyday items are allowed, but the decision depends on whether the item presents a security risk, fire risk, liquid limit, sharp edge, battery concern, medical need, or regulated substance. The table below offers a fast overview.
| Category | Carry-On | Checked Bag | Key Limit |
|---|---|---|---|
| Toiletries (liquids, gels, aerosols) | Yes, with limit | Yes | 3.4 oz / 100 ml per container; one quart-sized bag |
| Spare lithium batteries / power banks | Yes | No | Up to 100 Wh; 101–160 Wh requires airline approval |
| Phones, laptops, tablets (battery installed) | Yes | Yes | Checked devices must be powered off and protected |
| Knives and multi-tools with blades | No | Yes | Sharp items must be securely wrapped or sheathed |
| Scissors with blades under 4 inches | Yes | Yes | Measured from the pivot point |
| Firearms | No | Yes | Unloaded, locked hard-sided case, declared at check-in |
| Alcohol (24%–70% ABV) | Yes, subject to liquid rules | Yes, with limit | Max 5 L per passenger in unopened retail packaging |
| Alcohol over 70% ABV | No | No | Prohibited |
| Fireworks, flares, explosives | No | No | Prohibited |
| Baby formula and breast milk | Yes | Yes | Exempt from the standard 3-1-1 limit |
| Vapes and e-cigarettes | Yes | No | Carry-on only; protect from accidental activation |
The Four Rule Types Travelers Need to Know
Every item generally falls into one of four categories: allowed in carry-on, allowed in checked baggage, allowed with restrictions, or prohibited. Carry-on rules are stricter for objects that could pose a security risk, while checked-baggage rules also account for hazards in the cargo hold.
This explains why a knife must normally go in checked baggage while a spare lithium battery must stay in carry-on. For unusual items, check the official TSA “What Can I Bring?” database before leaving home.
Liquids, Food, Medicine, and Family Essentials
TSA’s 3-1-1 rule applies to most liquids, gels, aerosols, creams, and pastes in carry-on baggage. Each container must be 3.4 oz (100 ml) or smaller, and containers must fit inside one quart-sized bag.
Checked baggage is not subject to the TSA 3-1-1 rule, although separate FAA hazardous-material limits apply to certain medicinal and toiletry aerosols and other regulated products.
Liquids, Aerosols, Gels, Creams, and Pastes
Many food items count as liquids or gels under TSA rules. Peanut butter, hummus, yogurt, soft cheese, and creamy spreads must follow the 3.4 oz limit in carry-on baggage.
The same principle applies to toothpaste, shampoo, conditioner, lotion, gel deodorant, liquid makeup, perfume, mascara, and similar products. Gel ice packs generally need to be frozen solid at screening unless they qualify for a medical or family-related exception.
Medical and Baby Exceptions
Medically necessary liquids can exceed the standard 3.4 oz limit. Travelers should inform the TSA officer at the beginning of screening and keep these items accessible for separate inspection if requested.
Baby formula, breast milk, toddler drinks, and baby or toddler food are also permitted in quantities greater than 3.4 oz and do not need to fit inside the standard quart-sized liquids bag. Ice packs and other cooling accessories used for these items may also qualify for an exception.
Electronics, Batteries, Vapes, and Smart Luggage
Devices with installed lithium batteries can generally travel in carry-on baggage and, under certain conditions, in checked baggage. If a device is checked, it must be completely powered off and protected against accidental activation and damage.
Spare lithium batteries and power banks are different. They must stay in carry-on baggage because a battery fire is easier for the crew to identify and respond to inside the cabin.
Lithium Batteries and Power Banks
Phones, laptops, tablets, cameras, headphones, and similar electronic devices are generally allowed when their batteries meet applicable limits. Spare lithium-ion batteries and power banks rated up to 100 Wh can normally travel in carry-on baggage.
Batteries rated from 101 Wh to 160 Wh require airline approval, with a limit of two spare batteries per passenger. Batteries above 160 Wh are generally prohibited in passenger baggage. Individual airlines may impose stricter rules, so high-capacity batteries should always be checked before travel.
The current limits and requirements are available in the official FAA guidance for airline passengers and batteries.
If you have several hours between hotel checkout and an evening flight, this is also a useful point to separate what actually needs to go to the airport from the rest of your luggage. Qeepl offers luggage storage from US$4.90 per item per day, so you can leave a suitcase at a convenient location and carry only your documents, electronics, medication, and other essentials until it is time to head to the airport.
Vapes, E-Cigarettes, and Battery-Powered Smoking Devices
Vapes and e-cigarettes must travel in carry-on baggage or on your person. They are prohibited in checked baggage because of the fire risk associated with lithium batteries.
Devices should be protected against accidental activation, while vape liquids remain subject to the standard carry-on liquid restrictions. Destination rules matter too: some countries prohibit or tightly regulate vaping devices even when they are permitted on the aircraft.
Personal Items, Sharp Objects, Tools, Sports Gear, and Outdoor Equipment
Blade shape, point design, fuel residue, size, and whether an object could be used as a weapon determine where many outdoor and sporting items can travel.
| Item | Carry-On | Checked Bag | Notes |
|---|---|---|---|
| Safety razor without removable blade | Yes | Yes | Removable loose blades must be checked |
| Razor-type blades and box cutters | No | Yes | Sharp blades must be securely packed |
| Scissors with blades under 4 inches | Yes | Yes | Measured from the pivot point |
| Scissors with blades 4 inches or longer | No | Yes | Checked baggage only |
| Nail clippers | Yes | Yes | Generally permitted |
| Multi-tool with knife blade | No | Yes | A knife blade makes it prohibited in carry-on |
| Knives | No | Yes | Sharp items must be sheathed or securely wrapped |
| Hiking poles with blunt ends | May be allowed | Yes | Check TSA and airline rules for the specific design |
| Hiking poles with sharp points | No | Yes | Pack in checked baggage |
| Ice skates | Yes | Yes | Airline size restrictions may still apply |
| Fishing rods | Yes | Yes | Must meet airline size restrictions |
| Large or dangerous fishing hooks | No | Yes | Should be sheathed and securely wrapped |
| Small fishing tackle | Usually yes | Yes | Final decision rests with security officers |
| Camping stove with no fuel or residue | Yes | Yes | Must be completely free of fuel and vapors |
| Camping fuel canisters | No | No | Generally prohibited |
| Golf clubs | No | Yes | Airline baggage rules apply |
| Baseball and cricket bats | No | Yes | Checked baggage only |
| Tent poles | Yes | Yes | Subject to airline size rules |
| Tent stakes | No | Yes | Sharp items should be checked |
For sporting and outdoor equipment, airline baggage limits matter almost as much as security rules. An item can be acceptable to TSA but still be too large for an airline’s carry-on allowance.
Weapons, Hazardous Materials, Alcohol, Cannabis, and International Restrictions
Firearms must be unloaded and transported in a locked hard-sided container as checked baggage. Travelers must declare the firearm to the airline at the ticket counter before departure. Airlines may impose additional requirements for firearms and ammunition.
Small-arms ammunition must be securely packaged. TSA rules may allow ammunition in the same locked hard-sided case as an unloaded firearm when properly packed, but the airline’s own policy should always be checked before travel.
Many hazardous materials are prohibited in both carry-on and checked baggage. Examples include fireworks, flares, many fuels, and other explosive or highly flammable materials.
Alcohol rules depend on strength. Beverages containing 24% alcohol by volume or less are not subject to the FAA’s hazardous-material quantity restriction for checked baggage. Alcohol between 24% and 70% ABV is limited to 5 liters per passenger and must be in unopened retail packaging. Alcohol above 70% ABV is prohibited.
Carry-on alcohol must still meet TSA liquid restrictions unless it qualifies under applicable duty-free procedures.
Cannabis requires additional caution. TSA screening focuses on aviation security rather than searching specifically for marijuana, but suspected violations of federal law may be referred to law enforcement. Certain hemp-derived or FDA-approved products can fall under federal exceptions, but state, destination, and international laws may be stricter.
Domestic, International, Airline, and Final-Officer Rules
TSA and FAA rules are only part of the picture. Airlines set their own baggage size, weight, battery, firearm, sporting-equipment, and special-item policies.
International destinations add customs, agriculture, medication, and import rules. Food, meat, dairy products, fruit, vegetables, seeds, plants, prescription drugs, alcohol, vaping products, and other items that are acceptable at a U.S. security checkpoint can still be restricted when you arrive in another country.
The final decision about whether an item can pass through a U.S. security checkpoint rests with the TSA officer. When an item is unusual or potentially restricted, check both TSA guidance and FAA PackSafe as well as your airline’s current baggage policy.
How to Pack and Verify Your Items Before Airport Security
Follow this checklist before leaving for the airport:
- Pack standard liquids, gels, creams, and pastes in containers no larger than 3.4 oz / 100 ml inside the required quart-sized bag.
- Keep medications, medically necessary liquids, and baby items easy to access and declare larger exempt liquids when required.
- Carry spare lithium batteries, power banks, and vapes in the cabin only.
- Put knives, large or dangerous hooks, sharp-tipped hiking poles, tent stakes, and similar restricted items in checked baggage.
- Keep valuables, passports, essential medication, and important electronics in your carry-on.
- Follow checkpoint instructions on whether laptops and other large electronics need to be removed from your bag for screening.
- Check uncertain items using official TSA and FAA resources before packing.
- Review your destination’s customs rules for food, medication, plants, alcohol, vaping products, and other regulated items.
- Contact your airline in advance when traveling with firearms, high-capacity batteries, oversized sports equipment, or other special baggage.
Security rules can also change by item, airport, airline, and destination. For anything unusual, checking the exact object before packing is safer than relying on a general list.
