How much water should I drink on a 9 hour flight?

Per Aerospace Medical Association, passengers should aim to drink roughly eight ounces of water every hour spent in the air. “As a flight attendant, the medical staff tells us we have to drink one liter of water for every four hours of flying,” one Air France crew member confirmed to The Sun.



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Drink Plenty of Water
Try drinking 8 ounces (237 ml) every hour while in flight; this will help keep your body functioning optimally while also offsetting any dehydration caused by breathing in dry aeroplane air.

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So how much fluid does the average, healthy adult living in a temperate climate need? The U.S. National Academies of Sciences, Engineering, and Medicine determined that an adequate daily fluid intake is: About 15.5 cups (3.7 liters) of fluids a day for men. About 11.5 cups (2.7 liters) of fluids a day for women.

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“While plain water is best for staying hydrated, other drinks and foods can help, too,” says Theunissen. “Fruit and vegetable juices, milk and herbal teas add to the amount of water you get each day.” Consider bringing your own herbal tea bags while flying.

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Graduated compression stockings or socks are usually recommended for flights that last longer than 3 hours, as this is when you will start to suffer physical health issues.

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You are allowed to bring a quart-sized bag of liquids, aerosols, gels, creams and pastes through the checkpoint. These are limited to 3.4 ounces (100 milliliters) or less per item. This is also known as the 3-1-1 liquids rule. REAL ID Your 'Ready for Takeoff' Self

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The Ultimate In-Flight Hydration Hack
Deep and sustained hydration requires electrolytes. To keep your mineral levels, water levels, and energy levels on the up-and-up, our favorite in-flight wellness hack of all time includes packing LMNT stick packs into every carry-on.

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Before your flight, keep an eye on the seat map to see if there are any empty rows you can claim last minute.
  1. Use those air miles to upgrade. ...
  2. Shell out for premium economy. ...
  3. Prepare for jet lag. ...
  4. De-stress before you arrive. ...
  5. Pack plenty of face masks. ...
  6. Buckle your seat belt over your blanket. ...
  7. Pack an eye mask.


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13 Tips for Surviving a Long-Haul Flight
  1. Choose your seat. ...
  2. Power up. ...
  3. Get comfy. ...
  4. Bring some snacks. ...
  5. Always bring a scarf or shawl. ...
  6. Pack a pillow and blanket. ...
  7. See no evil, hear no evil. ...
  8. Hydrate, hydrate, hydrate.


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According to Bacheler, the human body loses about 8 ounces of water per hour on an aircraft at altitude, mostly from breathing. As such, the Aerospace Medical Association (AsMA) recommends drinking about 0.25 liters (or 8 ounces) of water per hour while on an airplane.

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How long does a layover need to be to leave the airport? Because layovers are your choice, you can leave whenever you like, but seasoned travelers, including McGee, seldom leave airports for less than six hours. After all, airports themselves aren't usually in bustling, interesting areas.

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What To Do During A Layover: 8 Tips For Surviving Long Layovers
  1. Catch Up on Sleep. ...
  2. Play a Game. ...
  3. Research Your Destination. ...
  4. Read or Write. ...
  5. Meet New People. ...
  6. Get Some Work Done. ...
  7. Exercise. ...
  8. Take a Short Trip Out of the Airport.


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A layover is a connection that lasts no longer than 4 hours for domestic flights and no longer than 24 hours for International flights. Layovers are fairly common, especially overnight layovers, but usually they aren't long enough to benefit you.

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How long does a flight have to be to get a meal? Meal service is determined by time of day, flying time and mileage, but in general, food is served on flights of approximately four hours or more than 1,750 miles. Meals and snacks are available for purchase on domestic flights longer than 3 1/2 hours or 1,550 miles.

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Treat Yourself Well on the Flight Start by aiming for 8 ounces of water each hour and you can take it a step further by avoiding dehydrating diuretics like alcohol and caffeine. Restoring electrolytes with coconut water or Gatorade may help you feel better if dehydration has already set in.

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One of them, and it's a topic few people know that much about, is dehydration from air travel. Especially when you're on a long-haul flight to the other side of the world. People get dehydrated on flights more than say doing a lot of walking because of one thing: a lack of humidity.

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Inside an airplane cabin, the air is extremely dry, putting you at heightened risk of dehydration. That can lead to nausea, headaches, and other unpleasant outcomes. Medical pros recommend drinking about a cup of water each hour you're on the plane.

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