I can't stand having dry lips so I always slather mine with a good lip balm.
Glossier's Balm Dot Com is great and the coconut one smells yummy. I also really like
Eight Hour cream from Elizabeth Arden. I think the two products are similar in that they're both multi purpose- you can use them on dry patches, cuticles, etc and they both have quite a dense texture so they're good for sealing moisture in.
Lastly, I take a bottle of lotion for my hands. In a bid to combat all the dryness of traveling I drink a lot of water which makes me pee a lot and in turn means I'm also constantly washing my hands (TMI?). And why use regular lotion when you could be using one that's 'ultimate strength'??? I got this
Kiehl's one free in a gift bag but so far it's holding up to it's title.
And that's it! I don't like to wear makeup when I'm flying so usually just pack it in my case and cover those post flight eye bags with some big sunglasses.