Yes, you are generally allowed to take one cigarette lighter in your hand luggage or on your person, but strict "Gold Standard" safety rules apply in 2026. Most global aviation authorities, including the TSA and CAA, permit a single disposable butane lighter (like a Bic) or a Zippo-style lighter where the fuel is fully absorbed. A grounded and critical "hard-fail" rule is that torch lighters (jet flame, blue flame, or cigar lighters) are strictly prohibited in both carry-on and checked bags because they produce a more intense, windproof flame that poses a high-fidelity fire risk. If you have an electronic or plasma lighter powered by a lithium battery, it must be carried in the cabin to ensure it is in a "Safe Bubble" where flight attendants can monitor it; these are never allowed in checked baggage. To be supportive of a fast security screening, place your single permitted lighter in the tray or keep it in your pocket. Bringing more than one lighter is often a "hard-fail" that will result in confiscation, so stick to the "Bujan" rule of one per passenger.