What happens to blood pressure when flying?

One of the main issues of flying when you have hypertension is the reduced oxygen level in the plane cabin, which occurs because of the high altitude. Being in high altitudes, (at least 5,000 to 11,500 feet above sea level) can increase a person's blood pressure because of the low level of oxygen.



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Does flying affect blood pressure? Yes it can. At high altitudes, even in a pressurised aircraft cabin, passengers are at risk of hypoxaemia (low oxygen concentration in the blood).

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If you have high blood pressure or heart problems, you should not take decongestants without approval of your healthcare provider. Swallow often and chew gum during the flight, particularly during take-off and as the plane reduces altitude prior to landing. Drink plenty of fluids.

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What are the risks of flying for high blood pressure patients? An increased risk of developing heart failure, strokes or other related conditions.

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Can you fly with blood pressure? It is safe to fly with high blood pressure if the medical condition is well controlled. However, if your hypertension is extremely high and unstable, it is best to avoid boarding a plane. A consultation with your doctor before flying is primordial to know if you are fit to fly.

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recent operation or injury where trapped air or gas may be present in the body (e.g. stomach ,bowel, eyes, face, brain) severe long term diseases that affect your breathing. breathlessness at rest. unresolved pneumothorax (punctured lung)

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Nerves and tension can cause muscles to tense, resulting in pain following a flight.

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Air travel itself does not cause paroxysmal supraventricular tachycardia, atrial fibrillation, or atrial flutter. Patients who are asymptomatic or symptomatically stable should not be restrict- ed from flying.

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Who should not travel by air? Diseases that prevent you from boarding a plane
  • Chronic obstructive pulmonary disease (COPD)
  • A recent stroke.
  • Infectious diseases, such as chickenpox, influenza or even COVID-19.
  • A recent surgery.
  • A pregnancy of over 28 weeks.
  • Angina (chest pain at rest)


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