Your ears pop during a flight because air pressure around you changes as the plane climbs or descends. The Eustachian tube connects the middle ear to the back of the nose and throat and helps equalize pressure across the eardrum. When it opens, you may feel or hear a pop.
The eardrum separates two air spaces
The eardrum sits between the ear canal and the air-filled middle ear. For it to vibrate normally, the pressure on both sides needs to stay reasonably balanced. The Eustachian tube links the middle ear with the back of the nose and throat, allowing pressure to adjust. Swallowing or yawning can briefly help the tube open. [1]
Cabin pressure changes during a flight
Aircraft cabins are pressurized, but cabin pressure still changes as an aircraft climbs and descends. If pressure in the middle ear does not equalize at the same rate, a difference forms across the eardrum. Opening the Eustachian tube moves air and can produce the pop or temporary sense of fullness commonly noticed during takeoff or landing. [2]
Congestion can make equalizing harder
A cold, allergy symptoms or nasal congestion can interfere with the tube’s opening. This can make pressure-related discomfort more noticeable. The mechanism is the same kind of pressure imbalance that can occur with altitude changes during mountain driving or with changes in depth while diving, although the circumstances differ.
When the pressure does not clear
Many brief pressure changes resolve as the tube opens and the middle-ear pressure catches up. Persistent or severe pain, hearing changes or symptoms after travel warrant advice from a qualified health professional. This article explains the basic mechanism; it does not diagnose ear symptoms or replace clinical care.
Sources and evidence
- MedlinePlus — Ear Barotrauma ↗
U.S. National Library of Medicine overview of pressure-related ear symptoms during flights and other altitude changes.
- Indian Journal of Otolaryngology — “Airplane Ear,” a Neglected Yet Preventable Problem ↗
Review describing pressure changes, the middle ear and Eustachian tube function during air travel.
Sources consulted: 14 October 2026. Written with AI assistance and checked against the linked references; not independently reviewed by a subject specialist. Sources do not endorse this article. See our editorial policy.
Revision: Initial publication; checked against a National Library of Medicine reference and a clinical review.