Smoking and vaping are banned on flights, but it appears that smokeless nicotine pouches are allowed — depending on the airline. Pouches are allowed in both carry-on bags and checked bags, according to the TSA.Yet when it comes to the actual use of these items on flights, airlines can determine their own rules for smokeless tobacco activity.SNEAKY AIRLINE PASSENGER'S CARRY-ON HACK SPARKS DEBATE OVER FLIGHT ETIQUETTEAmerican, United, Alaska Airlines, Southwest Airlines, JetBlue Airways and Spirit Airlines do not specifically define on their websites whether passengers can use nicotine pouches, according to the most recent review of their sites. Recently, one flight passenger
