I drink a lot of water in general, but I drink even more when I fly since I know it’s good for me. However, I had no idea how much exactly was best. Well, passengers drink eight ounces of water every hour they’re in the air to prevent dehydration. It’s also good to know that a flight under four hours won’t dehydrate you if you drink just a bit of water, while on longer flights you’ll feel the effects more intensely. A snippet from the write-up:
“Humidity in the cabin is usually low: in the range of 20%. There is no specific risk to your health, but low humidity can cause mild discomfort, particularly dry skin and eye irritation for sensitive people…Drink about 8 ounces of water each hour and use a hydrating nasal spray…Limit consumption of alcohol, tea, coffee and caffeinated drinks because they cause you to lose fluids.”
For more on how much water you should drink on a plane, how to stay hydrated and more, see .
FYI: Alcohol and caffeine don’t count. In fact, both will have the opposite effect so if you want to stay hydrated, stay away from them. I always get an aisle seat since I know I’ll be using the lavatory often and won’t want to disturb my seatmate(s).
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