Can I fly with diarrhea?

Several drugs, such as loperamide, can be bought over-the-counter to treat the symptoms of diarrhea. These drugs decrease the frequency and urgency of needing to use the bathroom, and may make it easier for you to ride on a bus or airplane while waiting for an antibiotic to take effect.



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Symptoms may last longer and be more severe if it's caused by certain bacteria or parasites. In such cases, you may need prescription medicines to help you get better. If you're an adult, see your doctor if: Your diarrhea lasts beyond two days.

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Your doctor may recommend medicines to help lower your chances of getting sick.
  1. Taking 2 tablets of Pepto-Bismol 4 times a day before you travel and while you are traveling can help prevent diarrhea. ...
  2. Most people do not need to take antibiotics every day to prevent diarrhea while traveling.


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Drink a lot of water. Instead, drink water. It will also help if your stomach is upset on the flight. Take regular sips of the water, rather than downing it all at once. Drink water 24 to 48 hours before your trip too at regular intervals.

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if you suffer from or have had:
  • angina or chest pain at rest.
  • an infectious disease (e.g. chickenpox, flu), including COVID-19.
  • decompression sickness after diving (sometimes called 'the bends')
  • increased pressure in the brain (due to bleeding, injury or infection)
  • infection of your ears or sinuses.
  • recent heart attack.


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Airlines have the right to refuse to carry passengers with conditions that may worsen. If the crew believes a passenger may have serious consequences during the flight, the passenger can be stopped.

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The most common symptoms of traveler's diarrhea are: Suddenly passing three or more looser watery stools a day. An urgent need to pass stool. Stomach cramps.

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