Flying with concussion
Flying will not cause damage after a concussion, but it can make the symptoms distinctly worse — and the timing question is really about what else might be going on.
The short answer. Best avoided while symptoms are active. Flying does not damage a concussed brain, but reduced cabin oxygen, dehydration, noise and disrupted sleep reliably worsen headache, nausea and dizziness. The greater concern is flying before a head injury has been properly assessed.
The real question is assessment, not altitude
Most concussions settle without complication. The reason clinicians are cautious about flying in the first days is not that the cabin is dangerous, but that the window in which a serious complication — a slow bleed inside the skull — would declare itself is also the window in which you would be at 35,000 feet, hours from a CT scanner.
If a head injury has been assessed, imaging done where indicated, and you are improving, that concern largely resolves.
Why it feels worse in the air
Concussion symptoms are aggravated by exactly what a flight provides: less available oxygen, dry cabin air and dehydration, engine noise, bright cabin lighting, screens, disturbed sleep and a long day. Many people find a flight sets their recovery back by a few days. It is not dangerous, but it is not comfortable.
If you must travel
- Get assessed first, especially if the injury was in the last 48 hours
- Hydrate properly and skip alcohol entirely
- Sunglasses, ear plugs or noise-cancelling headphones, and no screens
- Tell someone you are travelling with what to watch for
- Take simple pain relief with you rather than hoping to buy it airside
When not to fly
Do not fly and seek urgent medical attention if there is worsening or severe headache, repeated vomiting, drowsiness or difficulty waking, confusion, seizures, weakness or numbness, slurred speech, double vision, unequal pupils, or clear fluid from the nose or ears. Any head injury with these features needs a hospital, not an airport. Skull fractures and any trapped intracranial air are absolute reasons not to fly until cleared.
Common questions
How long after concussion can you fly?
There is no single published figure. Many clinicians suggest avoiding air travel while symptoms are active, and particularly in the first 24 to 48 hours after the injury when complications would declare themselves. Get individual advice for a recent injury.
Is flying dangerous with concussion?
Flying itself does not damage the brain. The concerns are being far from medical care in the early window, and symptoms being worsened by cabin conditions.
Can my child fly after a bump to the head?
If they have been assessed, are behaving normally, eating and drinking, and have no warning signs, usually yes. If the injury was recent or there is any concern, get them seen before travelling.
What about after a skull fracture or brain surgery?
Different situation entirely. Trapped air inside the skull expands at altitude, so flying must wait until a neurosurgeon or neurologist confirms it is safe. Do not rely on general guidance.
Will my insurance cover cancelling?
A new head injury that a doctor advises against travelling with is normally a valid cancellation reason, provided you have the advice documented and cancel promptly.
Related
Sources. The airline and clinical facts on this page were checked against these primary sources on 24 August 2026. Airline policies change without notice — always confirm with your airline before you book or travel.
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