Empty Stainless Steel Water Bottle On Plane? (Yes It Is Allowed)

Yes! You are allowed to bring an empty stainless steel water bottle on a plane. However, as many frequent flyers are aware, you are not permitted to pass through security with bottles of liquid greater than 3.4 oz or 100 ml in volume. So you’ll need to finish the water before you get to your security gate.

Why Do You Get Dehydrated While Flying?

It is important to stay hydrated while flying, maybe more so than a regular day. Dehydration is a big issue when flying, mainly because of the following:

  • Extended periods of time in a climate-controlled environment
  • Relatively low humidity, sometimes reaching as low as 10%
    • Your body is used to 30% – 40%
Recommended Products

Check-out the list of the products we recommend to help keep you hydrated throughout your day.

Tips For Staying Hydrated On A Plane

Some tips to help you stay hydrated next time you travel, include:

  • Drink Water
    • The best way to do this is by bringing your own reusable water bottle. After you pass through security, the first thing you should do is fill up your stainless steel water bottle. While on the plane, flight attendants will be happy to refill your empty water bottle as well. As a recommendation, you should be drinking 8 oz or approximately 250 ml every hour.
  • Avoid Caffeine and Alcohol
    • Both alcohol and caffeine have diuretic effects. Meaning they rid the body of salt and extra fluid. This makes you go to the bathroom more than usual. When your body loses those fluids by going to the bathroom, you need to replenish them.
    • If you are going to drink alcohol or have caffeinated drinks, have them in moderation. As a general rule, have one glass of water in between caffeinated or alcoholic beverages.


In this article, we discuss bringing an empty stainless steel water bottle on a plane, as well as some tips for staying hydrated while traveling.

Previously we wrote an article that reviewed the best water bottles for daily use. In that article, we discussed several types of stainless steel water bottles that can help you stay hydrated during your next flight.

For any comments, questions or feedback you might have, please send us a message through our contact form.

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