Why do airplanes affect balance?

The airplane cabin is pressurised, but the pressure still changes during ascent and descent. Your middle ear normally equalises pressure through the eustachian tube. When this tube cannot open quickly enough, a difference in pressure builds up across the eardrum. This can cause discomfort, a feeling of fullness, and sometimes dizziness.

Dizziness on a flight can also come from the vestibular system. The inner ear detects motion and gravity. During travel, especially in turbulence, the information from your eyes, inner ears, and joint sensors can disagree. That mismatch can trigger vertigo, a spinning or swaying sensation.

Dizziness, vertigo, and travel: what is the difference?

Dizziness is an umbrella term. It can mean light-headedness, faintness, or unsteadiness. Vertigo is more specific: it is the false sense that you or the world around you is spinning. Both can occur during air travel, but they often have different causes. Pressure-related ear problems typically cause a blocked or popping sensation along with brief dizziness. A vestibular disorder can cause true vertigo that lasts longer.

Common in-flight triggers

• Cabin pressure changes: the fastest pressure changes happen during climb and descent.
• Eustachian tube dysfunction: congestion from a cold or allergy can prevent pressure equalisation.
• Visual and balance mismatch: when the airplane moves but your eyes see a stable cabin, the brain receives conflicting signals.
• Low oxygen or dehydration: long flights can cause fatigue and light-headedness that some people describe as dizziness.

Tips for a more comfortable flight

• Swallow, yawn, or chew gum during takeoff and landing to help equalise pressure.
• If you have a cold or sinus congestion, consider using a nasal spray before the flight, after checking with a pharmacist or clinician.
• Stay well hydrated, but limit alcohol and caffeine.
• Practice the Valsalva manoeuvre gently: pinch your nose, close your mouth, and try to breathe out slowly. Stop if it hurts.
• Sit over the wing, where motion is often felt less.
• Look at a fixed point or the horizon if you start to feel vertigo during turbulence.

When to seek medical advice

Occasional dizziness during travel is usually harmless and settles soon after landing. But you should see a clinician if you have repeated vertigo, hearing loss, ringing in the ears, or sudden severe dizziness that appears during or after a flight. A professional vestibular assessment can identify whether the problem is pressure-related, inner-ear related, or something else.