13 Secrets to Surviving an International Flight

Those tiny cups of water they give you on the plane are not going to be enough to keep you hydrated on a long flight. Accept all the water they offer you (and maybe a glass of wine), but bring your own as well. You can't bring liquids over 3.4 ounces through the security checkpoint, so pack a few empty water bottles and fill them up in the water fountain after you pass through security. If you forget your water bottles, there should be plenty of opportunities to purchase a few large water bottles and throw them in your carry-on bag before you take off.