Flying with an ear infection can cause significant pain, temporary hearing loss, and in some cases, a ruptured eardrum. The core problem is that an infected ear can’t equalize pressure the way a healthy ear does, and the rapid altitude changes during a flight create exactly the kind of pressure shifts your ear needs to handle. If you can postpone your flight until the infection clears, that’s the safest option. If you can’t, there are ways to reduce the risk.
Why Ear Infections Make Flying Painful
Your middle ear is a small, air-filled space sealed off from the outside world by your eardrum on one side and connected to the back of your throat by a narrow passage called the eustachian tube. Normally, this tube opens briefly when you swallow or yawn, letting air flow in or out to keep the pressure balanced on both sides of your eardrum.
An ear infection causes swelling and fluid buildup that partially or fully blocks this tube. When the plane climbs, the cabin pressure drops and the air trapped in your middle ear expands outward, pushing the eardrum out. When the plane descends, the opposite happens: cabin pressure rises, and the higher external pressure pushes the eardrum inward. A healthy eustachian tube can open to let air through and relieve that pressure. A swollen, infected one often cannot.
The result is your eardrum stretching in ways it isn’t designed to, which produces moderate to severe pain. Descent is typically worse than ascent because the increasing external pressure actively compresses the eustachian tube shut, making it even harder to equalize.
What Can Actually Go Wrong
The mildest outcome is barotitis: dilated blood vessels on your eardrum and the surrounding ear canal skin, with some bruising of the membrane. This hurts, but the eardrum stays intact and the middle ear stays air-filled. It resolves on its own.
If the pressure difference keeps building and the eustachian tube can’t open, something called the “critical closing pressure” is reached. At that point, one of two things happens. The lining of the middle ear may release fluid, blood, or both into the space, which relieves the pressure on the eardrum but fills the middle ear with liquid. When this happens, your hearing drops noticeably and may stay reduced for a month or more as the fluid slowly clears.
The other possibility is that the eardrum tears. If the membrane has any weak spots, including healed areas from previous infections or perforations, the pressure can cause a new rupture. This instantly equalizes the pressure (the pain stops abruptly), but you may notice blood-stained discharge from the ear and significant hearing loss. Most small perforations heal on their own over weeks, but larger tears sometimes need medical intervention. In rare cases, damage to the middle or inner ear can cause permanent hearing loss, chronic tinnitus, or lasting vertigo.
Middle Ear vs. Outer Ear Infections
Not all ear infections carry the same risk. A middle ear infection (otitis media) is the high-risk scenario described above because the infection directly involves the space behind the eardrum where pressure equalization happens. An outer ear infection (otitis externa, or “swimmer’s ear”) affects the ear canal rather than the middle ear, so it doesn’t block the eustachian tube in the same way. Flying with an outer ear infection is generally less dangerous from a pressure standpoint, though the pressure changes during descent can still irritate already-inflamed canal tissue and worsen discomfort.
How to Reduce the Risk if You Must Fly
If rescheduling isn’t possible, several strategies can help protect your ears during the flight.
An oral decongestant taken 30 minutes before departure can reduce swelling in the eustachian tube enough to improve airflow. A nasal decongestant spray used about 30 minutes before descent serves a similar purpose. These won’t fully compensate for a badly blocked tube, but they can make the difference between manageable discomfort and real damage.
Pressure-regulating earplugs, available at most pharmacies, slow the rate of pressure change reaching your eardrum. They don’t improve how well the eustachian tube actually functions, but they buy your ear extra time to adjust. In pressure chamber testing, the maximum pressure reached the ear with a delay of about 7 minutes when these plugs were worn, and people with eustachian tube problems reported significantly less discomfort while using them.
Active equalization techniques also help. Swallowing, yawning, or gently blowing against pinched nostrils (the Valsalva maneuver) can coax the eustachian tube open. Start these techniques as soon as descent begins, not once pain sets in. Once the pressure difference gets too large, the tube locks shut and these methods stop working.
Stay awake during takeoff and landing. During sleep, you swallow far less often, which means your ears aren’t getting the regular pressure-equalizing action they need during the most critical phases of the flight.
Children and Infants
Young children are especially vulnerable because their eustachian tubes are shorter, narrower, and more horizontal than an adult’s, making them more prone to both infections and pressure-equalization problems. If your child has an active ear infection, delaying the flight is the strongest recommendation pediatricians give, specifically to avoid increased pain and a possible eardrum tear.
If you do fly with a young child, encourage swallowing during takeoff and landing. For infants, this means breastfeeding, bottle-feeding, or offering a pacifier during ascent and descent. If you’re bottle-feeding, keep the baby sitting upright. Older children can chew gum or sip water through a straw. The goal is the same: frequent swallowing to nudge that eustachian tube open repeatedly.
Warning Signs After the Flight
Some ear pain during descent is common even in healthy ears, so mild discomfort alone isn’t necessarily a sign of damage. But certain symptoms after landing suggest something more serious happened during the flight:
- Hearing that stays muffled for more than a few hours, which may indicate fluid has filled the middle ear
- Bloody or fluid discharge from the ear canal, which can signal a ruptured eardrum
- Persistent ringing (tinnitus) that wasn’t there before the flight
- Dizziness or a spinning sensation, which suggests the inner ear was affected by the pressure changes
- Severe pain that doesn’t fade after landing
Fluid-filled ears after barotrauma can take a month or more to fully clear. Hearing typically returns to normal once the fluid drains, but inner ear damage from severe pressure changes can occasionally cause permanent loss. If you’re experiencing any combination of hearing loss, discharge, and dizziness after flying with an ear infection, getting your ear examined sooner rather than later gives you the best chance of catching any damage that needs treatment.