Can You Fly With An AirTag In Your Luggage? | The Real Rules

You’ve probably heard the warning about lithium batteries and checked luggage. Spare batteries—the loose ones you toss in your bag—are a known fire risk, and airlines take that seriously. AirTags run on a CR2032 coin cell, and that little disc can trigger confusion at security and baggage check.

Here’s the short version: AirTags are allowed in both carry-on and checked bags on U.S. flights. The rules get a bit more nuanced for international travel, and a few airlines have their own restrictions. This article walks through the FAA and TSA guidelines, what to expect at the checkpoint, and which airlines have publicly signaled they’re fine with trackers in luggage.

How AirTags Fit Inside FAA and TSA Battery Rules

The FAA permits devices with installed lithium batteries in both carry-on and checked baggage, provided each lithium-metal battery contains no more than 2 grams of lithium. AirTags use a non‑removable CR2032 coin cell. Its lithium content falls well below that 2‑gram ceiling.

TSA policy mirrors the FAA’s. Their what‑can‑I‑bring tool states that devices containing lithium batteries should be carried in carry‑on, but most consumer electronics with installed batteries are allowed in checked baggage too. Because the AirTag’s battery is permanently installed and tiny, it passes both thresholds.

The key distinction is between “installed” and “spare.” Spare lithium batteries—loose or in a charger—are banned from checked bags. An AirTag is never a spare; it’s always inside the device.

Why Travelers Worry About AirTags and Lithium

Most people hear the word “lithium battery” and picture phone chargers or power banks—items that do have carry‑on‑only rules. An AirTag’s coin cell looks different, but it’s still a lithium battery. That creates a natural worry: “Will TSA flag my bag? Will the airline refuse it?” The answer is almost always no, but the misunderstanding is understandable.

Here’s a quick breakdown of what matters and what doesn’t:

• FAA installed‑device rule: Devices with batteries already inside are ok in both carry‑on and checked bags. AirTags qualify because the battery is factory‑installed and not designed for user removal.
• TSA screening: TSA agents may ask to inspect your bag if the tracker shows up during X‑ray, but they’re not looking for the AirTag itself—they’re verifying the battery is not loose. Travel blogs note this happens rarely.
• AirTag battery specs: The CR2032 coin cell contains roughly 0.11 grams of lithium—far under the 2‑gram limit. That means it’s small enough to be treated like any other AA or AAA battery in a device.
• International nuance: IATA, the global aviation body, advises that if a lithium battery is non‑removable, the bag may not be accepted as checked luggage depending on the airline’s policy. In practice, the tiny coin cell in an AirTag is widely accepted, but it pays to confirm with your carrier.

Once you understand the distinction between installed and spare batteries, the AirTag question becomes straightforward for most flights.

What the FAA Says About AirTags in Checked Baggage

The FAA’s official guidance on lithium batteries in baggage is clear: devices with installed batteries are allowed in checked luggage as long as the battery’s lithium content is within limits. The AirTag’s coin cell easily satisfies that condition.

The agency also notes that spare (uninstalled) lithium batteries are strictly prohibited in checked bags. That’s why you can’t toss a loose power bank into your suitcase, but you can pack a laptop, a camera, or an AirTag without issue. The FAA lithium battery rules explicitly list “devices containing lithium batteries” as accepted in both carry‑on and checked baggage.

An AirTag is essentially treated like any other small electronic—a Fitbit, a wireless earbud case, or a key finder. Its battery is not considered a hazard because it is sealed inside the tracker and cannot be removed or shorted out during transit.

How to Pack Your AirTag for a Smooth Security Experience

While the rules are on your side, a little preparation can prevent a last‑minute bag search at security. Most travelers place AirTags in checked luggage to track lost bags, but you can also pop one in your carry‑on.

1. Test the AirTag before you fly: Make sure the battery is fresh and the tracker connects to your phone. A dead AirTag is useless if your bag goes missing.
2. Place it in a visible spot: If you’re using a checked bag, tuck the AirTag inside a zippered pocket or under the lining. Security won’t remove it, but an easily found position can avoid a full bag search.
3. Keep your boarding pass and ID handy: If TSA asks about the tracker, being ready to answer speeds things up. You can simply say “It’s an Apple AirTag—the battery is installed in the device.”
4. Check your airline’s policy: While U.S. rules are uniform, some international carriers have their own battery policies. A quick look at the airline’s prohibited‑items page can save confusion at the gate.
5. Consider a carry‑on first flight: If you’re nervous, put the AirTag in your carry‑on for the first trip. Once you see it sail through security, you’ll be comfortable using it in checked luggage next time.

A few extra seconds of prep mean you can rely on your tracker without worrying about a surprise inspection.

Airline Policies and International Travel Considerations

Most major airlines follow the FAA’s lead, but a few have more specific rules. American Airlines, for example, requires all lithium batteries to be carried in carry‑on bags only, though their policy targets spare batteries, not installed devices. The TSA battery carry‑on rule also recommends carry‑on for devices with lithium batteries, but it’s a suggestion, not a prohibition on checked bags.

For international flights, the picture is slightly different. IATA guidelines give airlines discretion over devices with non‑removable batteries. In practice, airlines like British Airways, Delta, Air Canada, and Aer Lingus have publicly confirmed they allow AirTags in checked luggage. A 2024 survey by Condé Nast Traveler listed 18 airlines that either sell or permit AirTags. Still, travel blogs recommend double‑checking with your specific airline before an international trip, especially if you’re flying a budget carrier that may have stricter rules.

Here’s a quick reference of airlines that have stated they allow AirTags:

This list is based on public statements from 2024 and may change, so always confirm with your airline before travel.

The Bottom Line

AirTags are a useful travel accessory. On U.S. flights, they are fully allowed in both carry‑on and checked luggage because their coin‑cell battery is installed in the device and well under FAA lithium limits. Internationally, most major airlines accept them, but a quick check of your carrier’s policy removes any doubt.

For peace of mind, place an AirTag in your checked bag before you zip it up, and if you’re flying with an airline not on the list above, a quick call to their baggage desk or a glance at their prohibited‑items page will give you a definitive answer specific to your itinerary.