Although not cabin crew, I work in a very dry and frequently over-heated office so my skin tends to suffer in the same way.
Firstly, it may take a little time to find the right products for your skin - Clinique are great in that you can get samples from them (I will say at this point that I swear by the product Juud so helpfully illustrates, and have used it faithfully for very many years). A good daytime moisturiser is essential of course, but remember that to help avoiding nasty flaky patches and that tight, almost sore, feeling, you will need to take good care of your skin when you've taken your make-up off at the end of the day. Use a good creamy cleanser, nothing too harsh, and moisturise properly before bedtime. The Clinique Moisture Surge products are really nice to use, a sort of cream/gel blend that isn't heavy or cloggy but does the job. The eye product (essential to take special care of the eye area) is very good indeed for any age.
Secondly, choose your foundation with care. You don't want anything that has a drying effect, nor anything that looks overly heavy or greasy. You might check out a MAC counter for that, they have a really good range of different formulations, and extremely well-trained and helpful staff.
And finally, the advice given about drinking plenty of water is absolutely correct and vital for your well-being.