What blood pressure is too high for flying?

If your blood pressure is higher than 120 over 80, seek medical advice before you travel.



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There isn't any legally imposed limit as far as we're aware, but a high blood pressure must be controlled with medication before you travel for your safety. For example, blood pressure is considered high if over 140/90mmHg, so if your blood pressure is consistently above this value then it is important to reduce it.

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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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Air travel increases the risk of developing blood clots in the veins of the legs, which can then enter the bloodstream and block an artery in the lungs, a condition called pulmonary embolism. In some cases, the opening can allow the blood clot to enter the arteries of the brain, causing a stroke.

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If you suspect you may be too sick to fly, he recommends a medical risk assessment that considers both the seriousness of the symptoms as well the potential diagnosis. And if your doctor says don't fly -- don't fly.

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Sometimes a note from your doctor may not be enough for certain airlines. To make sure you aren't delayed or unable to travel, check with the airline about specific requirements they have regarding health, mobility, oxygen, and medical devices. Most airlines provide medical clearance cards or forms on their websites.

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If it's still very high, seek medical care. Call 911 or emergency medical services if your blood pressure is 180/120 mm Hg or greater and you have chest pain, shortness of breath, or symptoms of stroke. Stroke symptoms include numbness or tingling, trouble speaking, or changes in vision.

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