The best place to put an Apple AirTag in your luggage is hidden deep inside the inner lining or a non-obvious internal pocket, rather than attached to the outside. Placing it in a zippered mesh pocket or behind the fabric lining (often accessible via a maintenance zipper at the bottom of the suitcase) ensures it remains with the bag even if the external luggage tags are ripped off or stolen. You should avoid attaching it to the external handle or using a visible "AirTag keychain," as this alerts potential thieves to the tracking device and makes it easy to remove and discard. For maximum signal strength in 2026, place the "white side" of the AirTag facing outward (away from the center of the bag) to minimize interference from heavy metal frames or dense packing cubes. If you are checking a cardboard box, taping the AirTag inside a small plastic pouch on the interior wall is the safest bet to ensure you can track your "lost" items through the global "Find My" network.