This stress, combined with the altitude and lack of humidity, can not only dull your mood but also your natural glow. In addition to the dreaded blotchiness caused by the lack of moisture in the recycled cabin air, the high altitude means you have less blood flow to your skin. It's the perfect storm for your poor skin.

During a flight, your skin undergoes significant stress due to the extreme lack of humidity in the pressurized cabin. While typical indoor humidity is 30–50%, an airplane cabin often drops below 10–20%, which is drier than the Sahara Desert. This causes trans-epidermal water loss, leading to a dull, "tight" complexion and the exaggeration of fine lines. For those with oily skin, the body may overcompensate for this dryness by producing more oil, leading to post-flight breakouts often called "plane acne." Furthermore, the increased altitude means you are closer to the sun's UV rays; while plane windows block UVB rays, they do not fully block UVA rays, which cause premature aging. In 2026, dermatologists recommend applying a thick occlusive moisturizer and a high-SPF sunscreen before boarding, staying hydrated with water rather than alcohol, and avoiding face mists, which can actually draw more moisture out of your skin as they evaporate in the dry air.