Why Do Your Eyes and Lips Get Dry on an Airplane? Have you ever noticed that after about three hours on a flight, your eyes start to feel dry, your lips become chapped, or your skin feels tight? You're not imagining it. The air inside an aircraft cabin has very low humidity—much lower than what we're used to at home or in the office. As a result, our bodies lose moisture more quickly, especially during long-haul flights. Aircraft manufacturers have made significant improvements over the years to enhance passenger comfort, and newer aircraft generally maintain better cabin humidity than older models. Even so, it's still common to experience dry skin, dry lips, irritated eyes, and even a dry nose. After all, there's a reason why Business and First Class amenity kits often include hand cream, lip balm, and other skincare essentials. Airlines know that these small comforts help counter the effects of dry cabin air. But let's be honest—most of us travel in Economy Clas...