Your ears hurt on a plane because of a pressure imbalance between the air inside your middle ear and the rapidly changing cabin pressure, especially during descent. A small channel called the eustachian tube normally keeps these pressures equal, but it can’t always keep up with how fast the pressure shifts in an aircraft cabin. The result is a stretching of the eardrum that starts as a dull, stuffed feeling and can progress to sharp pain.
What Happens Inside Your Ear During a Flight
Your middle ear is a small, air-filled space sealed off from the outside by the eardrum. The only way air gets in or out is through the eustachian tube, a narrow passage that connects your middle ear to the back of your throat. On the ground, this system works fine. In a plane, the cabin pressure drops during ascent and rises during descent much faster than your eustachian tube can adjust.
During descent, the rising cabin pressure pushes inward on your eardrum while the air trapped in your middle ear is still at the lower pressure from cruising altitude. This creates a vacuum effect in the middle ear space. Blood vessels in and around the eardrum swell with blood in response, and if the pressure difference keeps growing, those vessels begin leaking fluid into the surrounding tissue, causing inflammation. That’s why the pain tends to be worst in the final 20 to 30 minutes of a flight, when the plane is descending most steeply.
The sensation follows a predictable pattern: first a feeling of fullness or muffled hearing, then growing discomfort, then genuine pain if you can’t equalize. In extreme cases, the eardrum can actually rupture, which relieves the pressure instantly but may cause hearing loss and a blood-tinged discharge from the ear.
Why Descent Hurts More Than Takeoff
Ascent usually causes less trouble because air escapes the middle ear more easily than it enters. As the cabin pressure drops during climb, the higher-pressure air in your middle ear pushes outward through the eustachian tube with relatively little effort. You might notice a pop or two, but it tends to resolve on its own. Descent is the opposite problem: the tube needs to actively open to let higher-pressure air back in, and that requires muscular effort from the tissues around the tube. If the tube is even slightly swollen or sluggish, equalization fails and the pain builds.
Why Kids Are More Affected
Children are significantly more prone to ear pain during flights, and it comes down to anatomy. In infants and young children, the eustachian tube runs nearly horizontal rather than at the downward angle seen in adults. This makes it harder for the tube to drain and equalize pressure effectively. The tube is also shorter and narrower: its volume roughly doubles from about 62 cubic millimeters in childhood to 111 cubic millimeters in adulthood. As the skull grows, the tube gradually tilts downward and lengthens, which is why most people notice fewer problems with airplane ear as they get older.
Children are also more susceptible to ear infections and eustachian tube dysfunction from acid reflux, allergies, and upper respiratory infections, all of which cause swelling that further narrows an already small tube.
Flying With a Cold or Congestion
If you’ve ever flown with a head cold, you already know the pain can be dramatically worse. The reason is straightforward: swelling from a cold, sinus infection, or allergies narrows or blocks the eustachian tube, making it much harder to equalize pressure. The CDC notes that pressure changes during flight can actually trigger sinusitis and middle ear infections in travelers with preexisting congestion or eustachian tube problems.
This is one of the few situations where it’s worth planning ahead with medication. Taking an oral decongestant about an hour before the plane begins its descent, and using a nasal decongestant spray about 30 minutes before descent, can shrink swollen tissues enough to let the eustachian tube open. If you’re significantly congested, these steps can make the difference between mild discomfort and severe pain.
How to Equalize Pressure During a Flight
Two simple techniques handle most cases of airplane ear. The first, the Valsalva maneuver, involves closing your mouth, pinching your nose shut, and gently blowing as if inflating a balloon. This forces air up through the eustachian tube by increasing pressure in your airways. Don’t blow hard; a gentle, steady push is enough. You should feel a soft pop in one or both ears when it works.
The second technique is even simpler: swallowing. When you swallow, the muscles around the eustachian tube contract and briefly open the tube, allowing pressure to equalize. This is why chewing gum, sipping water, or sucking on hard candy during descent helps. For infants who can’t do any of these on command, nursing or drinking from a bottle during descent triggers the same swallowing action.
Yawning works similarly and can be more effective than swallowing because it engages more of the muscles around the tube. The key with all of these methods is timing: start before the pain sets in. Once the pressure difference is large enough to lock the eustachian tube shut, equalizing becomes much harder.
Do Pressure-Filtering Earplugs Work?
Specialty earplugs designed to regulate pressure changes are sold in most airport shops. They don’t block the pressure change entirely; instead, they slow the rate at which pressure reaches your eardrum, giving your eustachian tube more time to catch up. Testing in a pressure chamber showed that these plugs delayed the peak pressure reaching the ear canal by about seven minutes. People wearing them reported noticeably less discomfort on a pain scale compared to an unprotected ear, even though the plugs didn’t actually improve how well the eustachian tube itself functioned.
They’re a reasonable option if you’re prone to ear pain, particularly as something to combine with swallowing or gum-chewing rather than rely on alone.
How Long the Pain Should Last
For most people, the fullness and discomfort resolve within minutes of landing as the eustachian tube catches up and pressure equalizes. If congestion was involved, it can take a few days for the ears to feel completely normal, especially if fluid built up in the middle ear during the flight. Persistent stuffiness or muffled hearing after a flight is a sign that the middle ear hasn’t fully cleared.
Certain symptoms point to something more serious. Fluid or blood draining from the ear canal suggests a ruptured eardrum. Prolonged vertigo, where you feel a spinning sensation that doesn’t stop, can indicate disruption of the inner ear. Sharp hearing loss that doesn’t improve within a day or two also warrants a medical evaluation. Most eardrum perforations from flight pressure heal on their own within weeks, but they need monitoring to prevent infection.