Learn how to avoid dry skin that develops on extended airplane flights. 1 Buy a small sprayer (under three and a third ounces, due to airplane security) and lip balm. 2 Every hour that you are on the airplane, spray your face once with the sprayer's fine mist setting. 3 Do not wipe off the water and apply a thin layer of oil free moisturizer. 4 Apply lip balm every hour.