Shining a Light on TSA Rules: Can You Bring a Flashlight on a Plane in Your Carry-On?
When it comes to air travel, carry-on luggage has become a topic of intrigue for many travelers in the United States. People have so many questions about the intricate rules and restrictions that they often find themselves getting stopped at the security checkpoint by a vigilant TSA officer or TSA agent.

One of the best things you can do to navigate the maze of different rules and regulations is to turn to the official TSA website for guidance on what you can and can’t bring, particularly when it comes to lithium-ion batteries in your carry-on baggage versus checked bags.
In this blog post, we will be shining a light (no pun intended) on TSA rules about bringing a flashlight in your carry-on luggage amongst your other personal items. Understanding these guidelines can help you avoid confusion at the airport and ensure a smoother journey.
Regular flashlights: surely I can pack one in my carry-on baggage?
The short answer: yes and no. When it comes to regular flashlights and carry-on luggage, it’s important to be mindful of TSA regulations regarding lithium-ion batteries. Regular flashlights are generally permitted in your carry-on baggage, but you should pay close attention to the handling of lithium-ion batteries. These batteries must be stored in your carry-on luggage, not in your checked baggage, as per TSA regulations to prevent potential fire hazards during transport. Always ensure you follow the guidelines when packing your regular flashlights and their associated lithium-ion batteries to ensure a smooth and secure journey.

While packing regular flashlights in your carry-on luggage is allowed according to TSA rules, there are size restrictions. They’re not always clearly mentioned on the TSA website. Regular flashlights, including a rechargeable flashlight or military flashlight, must be 7 inches or less in size to be packed into your carry-on baggage.
Tactical flashlight: checked bags or carry-on luggage?
When it comes to a military flashlight or tactical flashlight, it’s essential to be aware that security checkpoint agents will not allow them in your carry-on baggage. A tactical flashlight often has weapon-like features, and it cannot be brought aboard a plane, as it’s prohibited by Transportation Security Administration regulations.

You won’t make it beyond the security checkpoint if you pack a military flashlight or tactical flashlight in your carry-on luggage. If you must have access to a tactical flashlight when you arrive at your final destination, consider putting it in one of your checked bags. Checked bags are still subject to airline security, so truly dangerous goods should never be packed.
Rechargeable flashlight: are lithium-ion batteries allowed in carry-on luggage?
TSA regulations concerning lithium-ion batteries in carry-on baggage are designed to ensure passenger safety. If you’re carrying a rechargeable flashlight or any device powered by lithium-ion batteries, it’s vital to keep these batteries in your carry-on luggage in accordance with federal law. TSA officers are well-versed in the potential hazards of lithium-ion batteries, as they can pose a fire risk if they short circuit or overheat, making it essential to prevent such incidents by keeping them in your carry-on.

For devices with non-removable lithium batteries, like power banks, it’s also advisable to store them in your carry-on baggage. In contrast, checked bags are not an ideal place for these batteries due to the potential risks associated with a battery-related incident. By adhering to TSA regulations and having your lithium-ion battery-powered devices in your carry-on, you help ensure a safer and smoother journey through airport security checks.
The final decision rests with the TSA agent
It’s important to plan ahead and be familiar with the Transportation Safety Administration rules and regulations. But even the most carefully packed and planned carry-on baggage could be called into question by a TSA officer if your personal electronic devices or spare batteries don’t quite fit within the TSA regulations. As I always say, the final decision about what flies and what doesn’t rests with the TSA agent. If you’re not prepared to pack it in your checked bags, or possibly leave it behind, then don’t pack it into your carry-on baggage.
What are the major airline’s rules about flashlights in carry-on luggage?
All major airlines, including Delta, Southwest, United, JetBlue, and American Airlines, among others, strictly adhere to TSA regulations when it comes to air travel.

So as long as you are careful not to break the rules about lithium-ion batteries, and as long as your flashlight isn’t more than 7 inches long, it can be packed in your carry-on baggage. For that matter, a flashlight can also be packed in your checked bags. The Transportation Safety Administration is the ultimate power when it comes to carry-on luggage regulations and flashlights, it has nothing to do with an airline’s rules.
Wondering about other items you can and can’t take in your carry-on luggage?
Check out this great blog post entitled, Can you bring a blanket on the plane? And other hand luggage considerations for air travel. You’re not alone, lots of travelers are wondering about the different rules for carry-on baggage.

Another common question about TSA regulations and carry-on luggage is whether or not you can pack sharp objects like scissors, lapel pins, and hat pins. Check out this informative blog post entitled, What to carry in your luggage: can you bring pins on the plane? You’ll be glad you planned ahead to organize your checked bags and carry-on luggage for smooth sailing through the airport security checkpoint.
A few final thoughts about your carry-on bag and flashlights
To figure out what’s okay to bring in your carry-on baggage and what’s a no-go, just follow the TSA rules. For your carry-on luggage, a good way to know if your flashlight is good to go is to check if it’s under 7 inches and doesn’t look like a weapon. When it comes to checked bags, you can toss in any flashlight you want, but don’t forget to keep the lithium-ion batteries that can be removed in your carry-on bag.
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