Why this matters

A lighter is a small open-flame device full of flammable fuel, so it gets some of the most specific rules in air travel — down to the exact count (one) and the flame type (soft flame only). The counterintuitive part for most travelers is the direction of the rule: unlike almost everything else, a lighter is safer in the cabin than the hold, so carry-on is the allowed option and checked baggage is essentially banned.

Restrictions

For flights departing the US:

  • One disposable (Bic-type) or Zippo-style soft-flame lighter is allowed, carried on your person or in carry-on baggage.
  • Torch and jet-flame lighters — the windproof blue-flame type used for cigars — are banned from the aircraft completely.
  • Checked baggage: fueled lighters are prohibited unless sealed in a DOT-approved airtight travel case, which permits up to two. In practice almost no traveler owns one, so treat checked as "no."
  • A lighter genuinely empty of all fuel and vapor may be checked, but officers err on the side of removal.
  • Lighter fuel, butane refills, and naphtha cannot fly in any baggage.

Internationally, expect variation in the strict direction: some countries and airlines, notably in China, ban all lighters from flights, and others limit what can pass through transit screening. If the lighter is replaceable, the simplest plan abroad is to buy one on arrival.

What the official guidance says

TSA permits one lighter without fuel restrictions in carry-on, bans torch lighters outright, and defers to DOT hazardous-materials rules for checked baggage, where only fuel-free lighters or those in approved cases may travel. The FAA's PackSafe guidance mirrors this and prohibits all lighter refills. The checkpoint officer makes the final call on any specific lighter, and international carriers may refuse them entirely.