Can You Bring Hearing Aids on a Plane? TSA Rules

Hearing aids are medical devices, and medical devices are treated differently from ordinary electronics at airport security. The short answer is that hearing aids are fully permitted — you can wear them through security, keep them on during the flight, and bring as many spares as you need. This guide covers the details: security screening, battery rules, cochlear implants, and practical tips for traveling with hearing devices.

The Medical Device Exemption

The TSA's security rules make an explicit distinction between consumer electronics and medical devices. Hearing aids fall in the medical device category, which means:

• They are permitted in carry-on and checked luggage with no quantity limits
• You may wear them through all stages of airport screening
• TSA officers are trained to accommodate passengers with medical devices
• You are never required to remove a hearing aid for screening

This is not a loophole or an informal accommodation — it is documented TSA policy. The same framework applies to other medical devices including insulin pumps, TENS units, and ostomy appliances.

Wearing Hearing Aids Through Security

You can walk through the entire airport security process while wearing your hearing aids. This includes:

• The main security checkpoint
• Metal detectors
• Body scanners (Advanced Imaging Technology / millimeter wave)
• TSA PreCheck lanes

You are not required to remove your hearing aids, and TSA officers should not ask you to do so. If an officer asks you to remove your hearing aids, you can politely inform them that it is a medical device — TSA policy does not require removal.

Will Hearing Aids Set Off the Metal Detector?

This depends on your specific device. Hearing aids contain varying amounts of metal, including microphone components, battery contacts, and the casing. Some models trigger metal detectors; others pass through without triggering. There is no reliable way to predict this in advance for your specific device.

If your hearing aid triggers the metal detector:

• Inform the officer that you are wearing a hearing aid
• The officer will typically offer a secondary screening — either a hand-held metal-detecting wand or a full pat-down
• Neither of these requires you to remove your hearing aid

If you know from past experience that your device triggers detectors, simply tell the officer proactively before you enter the screening lane. This makes the process faster and reduces confusion.

Body Scanners (AIT / Millimeter Wave)

Modern airport security often includes body scanners that produce a generic outline of the passenger's body and flag any anomalies. Hearing aids are compatible with body scanners — you can pass through wearing them, and they will show up on the scanner image as items on your person.

The scanner operator may ask the officer to check the area near your ears. Simply inform them you are wearing hearing aids. The pat-down or wand check that follows is brief and does not require you to remove the device.

Battery Rules for Hearing Aids

Hearing aids use one of two battery types, and the rules differ between them.

Disposable Zinc-Air Batteries

Traditional hearing aids use small disposable zinc-air batteries (sizes 10, 312, 13, and 675). These are not lithium batteries and are not subject to the aviation lithium battery restrictions.

• Disposable zinc-air hearing aid batteries can go in carry-on baggage in any quantity
• They can also go in checked luggage
• There is no regulatory limit on how many you can bring

Bring a generous supply. Finding your specific hearing aid battery size at a pharmacy in an unfamiliar city can be time-consuming, and some destinations may not stock niche battery sizes. Many experienced hearing aid users traveling internationally carry a full box or two of spare batteries.

Rechargeable Hearing Aids (Lithium Batteries)

Many modern hearing aids — particularly receiver-in-canal and behind-the-ear models from manufacturers including Phonak, ReSound, Signia, Starkey, and Widex — now use built-in rechargeable lithium-ion batteries rather than disposable zinc-air cells.

If your hearing aid has a built-in lithium battery:

• The device must travel in carry-on — it cannot be placed in checked luggage
• This is the same lithium battery rule that applies to laptops, smartphones, and other rechargeable electronics
• You will typically wear the device through security, but if you pack a spare rechargeable hearing aid, that spare must go in your carry-on bag or personal item, not your checked suitcase

If you are not sure whether your hearing aid uses a lithium rechargeable battery, check whether it charges via a charging cradle or USB cable (lithium) versus whether you manually swap out round batteries (zinc-air).

Cochlear Implants

Cochlear implants have two components: the surgically implanted internal receiver and the external sound processor worn behind the ear or on the scalp. Flying with a cochlear implant requires some awareness, but there are no prohibitions.

The Internal Implant

The internal cochlear implant is a surgical device that is always with you — you cannot remove it for security screening. Implants contain metal components (the electrode array and receiver housing) that will be detected by metal detectors and may be visible on body scanners.

What to do at security: Inform the TSA officer that you have a cochlear implant before entering the screening lane. The officer will typically direct you to a body scanner or offer a pat-down instead of the metal detector. Medical device cards from your cochlear implant manufacturer (Cochlear, MED-EL, Advanced Bionics) describe the implant and are worth carrying, though TSA officers do not require them.

The implant itself is unaffected by metal detectors, body scanners, or the screening process.

The External Processor

The external sound processor clips behind your ear or attaches magnetically to your head. It contains a battery (usually a rechargeable lithium battery or disposable batteries, depending on the model). The lithium battery rule applies: if the processor has a built-in rechargeable lithium battery, a spare processor must travel in carry-on.

You can wear the external processor through all security screening.

A Note on MRI Compatibility

This is separate from aviation security, but worth noting if you have a cochlear implant: MRI scanning compatibility depends on your specific implant generation. Inform any medical facility of your cochlear implant before any MRI procedure. This has no bearing on air travel.

Packing Hearing Aids for a Flight

A few practical recommendations based on how important these devices are:

Always carry hearing aids and spares in your carry-on. Checked luggage is occasionally delayed or lost. Hearing aids are medical devices that significantly affect your ability to function and communicate. They are also expensive to replace. Never put your primary hearing aids or a spare set in checked luggage.

Bring extra batteries or a charging cable. Flights can be delayed, layovers extended, and travel days stretched from planned hours to much longer. Having battery supply for at least twice your expected travel duration is a sensible cushion.

Hard-shell cases protect the devices. Hearing aids are small and delicate. A hard-shell carrying case (most manufacturers provide one) protects them from being crushed in your bag. Keep the case in an exterior pocket of your carry-on for easy access at security if needed.

Inform airline staff if needed. On the aircraft, hearing aid use is unrestricted. You can wear hearing aids during all phases of flight. If you have difficulty hearing announcements, informing the crew before boarding allows them to make sure safety briefings reach you.

Flying Internationally

The TSA rules described in this guide apply to US airports. Equivalent exemptions for medical devices exist at most major international airports — security agencies in the UK, EU, Australia, Canada, and most other countries extend similar accommodations to medical device users. The core experience (wear your hearing aid through screening, inform officers of the device) is consistent globally, though the specific screening technology and procedures vary by airport.