Yes, it is perfectly safe to wear a tampon on an airplane, and there is no physiological reason why air travel would increase the risks associated with their use. A common myth suggests that cabin pressure might affect the absorbency or placement of a tampon, but modern aircraft cabins are pressurized to a level equivalent to about 6,000–8,000 feet, which has no physical effect on the human body's internal pressure in a way that would impact menstrual products. The primary safety concern remains the same as on the ground: Toxic Shock Syndrome (TSS). Because traveling often involves long periods of sitting or unexpected delays, it is vital to remember to change your tampon every 4 to 8 hours as recommended by health organizations like the NHS. If you have a long-haul flight (e.g., 12+ hours), you should plan to change it in the aircraft lavatory or consider using a high-capacity backup like a menstrual cup or a sanitary pad to ensure you don't exceed the safe time limit. As long as you maintain standard hygiene practices, flying does not pose any additional risk to your reproductive health.