To keep your skin moisturized from the inside out, sip lots of water.
To improve the humidity level in your hotel room, think about bringing in a portable humidifier.
Apply a moisturizer that is appropriate for your skin type on a regular basis. This is especially important after cleansing your face.
To restore moisture, apply a hydrating mask to your skin before takeoff or once you arrive at your destination.
To shelter your skin from UV rays, use sunscreen and wear protective clothing.
To keep your skin feeling renewed throughout the day, keep a travel-sized hydrating mist with you.
Make sure your diet includes fruits and vegetables that are high in water content.