Yes, you can generally pack tobacco products—such as cigarettes, cigars, and loose tobacco—in both your checked suitcase and your carry-on bag. TSA and most international aviation authorities do not prohibit these items for safety reasons, as they are not flammable in their unlit state. However, the primary restriction is not about safety, but about Customs and Duty-Free allowances. Most countries allow you to bring in a specific amount (usually 200 cigarettes or 50 cigars) without paying taxes. If you exceed this limit, you must declare it upon arrival and pay the required duties. It is also worth noting that while the tobacco itself is fine in a suitcase, vapes and electronic cigarettes must always be kept in your carry-on luggage due to the fire risk associated with lithium-ion batteries in the cargo hold.